BOSS Butterfly Valves_1 by wanghonghx

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									Butterfly Valves
GENERAL INDEX
BOSS Ductile Iron                Size   BSS Code   BOSS Code     Size   BSS Code   BOSS Code
Butterfly Valves                50mm    36530402     16LNE      50mm    36530509     16LNB
                                65mm    36530413     16LNE      65mm    36530520     16LNB
                                80mm    36530424     16LNE      80mm    36530531     16LNB
Code Number System
                               100mm    36530435     16LNE      100mm   36530542     16LNB
                               125mm    36530446     16LNE      125mm   36530553     16LNB
     1        2 3 4 5 6
                               150mm    36530457     16LNE      150mm   36530564     16LNB
             16 L N E
                               200mm    36530468     16LNE      200mm   36530575     16LNB
1 Operator              Code   250mm    36530479    G16LNE      250mm   36530586    G16LNB
  Lever                 None   300mm    36530490    G16LNE      300mm   36530597    G16LNB
  Gear                   G     50mm     36530605       16LSE    50mm    36530701    16LSB
2 Pressure                     65mm     36530616       16LSE    65mm    36530712    16LSB
  16 bar                 16    80mm     36530627       16LSE    80mm    36530723    16LSB
                               100mm    36530638        16LSE   100mm   36530734    16LSB
3 Series Style                 125mm    36530649        16LSE   125mm   36530745    16LSB
  Wafer                  W     150mm    36530660        16LSE   150mm   36530756    16LSB
  Lugged                 L     200mm    36530671        16LSE   200mm   36530767    16LSB
  Semi-lugged            S     250mm    36530682       G16LSE   250mm   36530778    G16LSB
4 Disc/Stem                    300mm    36530693       G16LSE   300mm   36530789    G16LSB
  Nickel Plated          N     50mm     36530808       16WNE    50mm    36530904    16WNB
  316 Stainless Steel    S     65mm     36530819       16WNE    65mm    36530915    16WNB
5 Liner                        80mm     36530830       16WNE    80mm    36530926    16WNB
  BUNA                   B     100mm    36530841        16WNE   100mm   36530937    16WNB
  EPDM                   E     125mm    36530852        16WNE   125mm   36530948    16WNB
                               150mm    36530863        16WNE   150mm   36530959    16WNB
6 Lever Colour                 200mm    36530874        16WNE   200mm   36530970    16WNB
  Blue                  None   250mm    36530885       G16WNE   250mm   36530981    G16WNB
  Yellow                 Y     300mm    36530896       G16WNE   300mm   36530992    G16WNB
                               50mm     36531009       16WSE    50mm    36531105    16WSB
                               65mm     36531020       16WSE    65mm    36531116    16WSB
                               80mm     36531031       16WSE    80mm    36531127    16WSB
                               100mm    36531042       16WSE    100mm   36531138    16WSB
                               125mm    36531053       16WSE    125mm   36531149    16WSB
                               150mm    36531064       16WSE    150mm   36531160    16WSB
                               200mm    36531075       16WSE    200mm   36531171    16WSB
                               250mm    36531086       G16WSE   250mm   36531182    G16WSB
                               300mm    36531097       G16WSE   300mm   36531193    G16WSB

                               50mm     36530007       16SNE    50mm    36530103    16SNB
                               65mm     36530018       16SNE    65mm    36530114    16SNB
                               80mm     36530029       16SNE    80mm    36530125    16SNB
                               100mm    36530040       16SNE    100mm   36530136    16SNB
                               125mm    36530051       16SNE    125mm   36530147    16SNB
                               150mm    36530062       16SNE    150mm   36530158    16SNB
                               200mm    36530073       16SNE    200mm   36530169    16SNB
                               50mm     36530210       16SSE     50mm   36530306    16SSB
                               65mm     36530221       16SSE     65mm   36530317    16SSB
                               80mm     36530232       16SSE     80mm   36530328    16SSB
                               100mm    36530243       16SSE    100mm   36530339    16SSB
                               125mm    36530254       16SSE    125mm   36530350    16SSB
                               150mm    36530265       16SSE    150mm   36530361    16SSB
                               200mm    36530276       16SSE    200mm   36530372    16SSB




                                                   2
                                                  Chemical Resistance Guide
PN16 Wafer                                         Fluid/Material                          Disc                           Seat
                                                                               Ductile              316         NBR               EPDM
                                                   Acetic Acid (10%)            Poor              Excellent   Very Poor           Good
                                                   Air                         Excellent          Excellent   Excellent          Excellent
                                                   Ammonia                       Good             Excellent     Poor               Good
                                                   (anhydrous liquid)

        Ductile Iron Body                          Ammonia (solution)            Good             Excellent     Good               Good
        Extended Neck                              Ammonium Suplhate             Poor               Good      Excellent          Excellent
                                                   Animal Oil                  Excellent          Excellent   Excellent            Good
Disc NPDI or 316SS
                                                   Calcium Carbonate           Very Poor            Good      Excellent          Excellent
Liner NBR or EPDM
                                                   Carbonic Acid               Very Poor            Good        Good               Good
Size 50mm-200mm lever
      250mm-300mm gear                             Chlorinated Water              –                 Poor      Very Poor            Poor
                                                   Deionised Water             Very Poor          Excellent   Excellent          Excellent
                                                   Distilled Water             Very Poor          Excellent   Excellent          Excellent
                                                   Ethane                        Good               Good      Excellent          Very Poor
PN16 Lugged                                        Ethyl Alcohol                 Good             Excellent     Good             Excellent
     Ductile Iron Body                             Frenon12                      Good             Excellent     Good             Excellent
     Extended Neck                                 Gasoline                      Good             Excellent   Excellent          Very Poor
                                                   (refined/unleaded)
Disc NPDI or 316SS
Liner NBR or EPDM                                  Glycol                      Excellent          Excellent   Excellent          Excellent
Size 50mm-200mm lever                              Hydrochloric Acid           Very Poor          Very Poor     Poor             Excellent
      250mm-300mm gear                             Hydrogen Gas (cold)           Good             Excellent     Good               Good
                                                   Lubricating Oil/Motor Oil   Excellent          Excellent   Excellent          Very Poor
Also available with                                (petroleum based)
Yellow Lever for identification                    Methyl Alcohol                Good             Excellent     Good             Excellent
of Gas service.                                    Mineral Oil                   Good             Excellent   Excellent          Very Poor

Disc NPDI                                          Natural Gas                 Excellent          Excellent     Good             Very Poor
Liner NBR                                          Oils : Diesel Fuel          Excellent          Excellent   Excellent          Very Poor
                                                   (20, 30, 40, 50)
Size 50mm(2in)-200mm(8in)
                                                   Oils : Fuel                 Excellent          Excellent     Good             Very Poor
                                                   (1, 2, 3, 5A, 5B, 6)
 Size (mm)         BSS Code       BOSS Code        Oxygen Gas (cold)             Good             Excellent     Good               Good
     50            36531201        16LNBY          Petroleum Oil (refined)        –                  –          Good             Very Poor
     65            36531212        16LNBY          Propane Gas                   Good             Excellent   Excellent          Very Poor
     80            36531223        16LNBY          Sea Water                   Very Poor            Good      Excellent          Excellent
    100            36531234        16LNBY          Soybean Oil                   Poor             Excellent   Excellent            Poor
    125            36531245        16LNBY          Sulphuric Acid (7%)         Very Poor            Good        Good               Good
    150            36531256        16LNBY
                                                   Sulphuric Acid (20%)        Very Poor          Very Poor   Very Poor            Good
    200            36531267        16LNBY
                                                   Sulphuric Acid (50%+)       Very Poor          Very Poor   Very Poor            Good
                                                   Sulphurus Acic              Very Poor            Good        Poor               Poor
PN16 Semi-lugged                                   Steam (100ºC)               Excellent          Excellent   Very Poor            Good
                                                   Vegetable Oil                 Poor             Excellent   Excellent            Poor
                                                   Vinegar                     Very Poor          Excellent     Good             Excellent
                                                   Water (hot 150ºC)             Poor             Excellent   Very Poor            Good
                                                  These performance data have been developed from testing, customer field
                                                  reports and/or in-house testing. Properties/applications shown are typical.
        Ductile Iron Body
                                                  Your specific application should not be undertaken without independent
        Extended Neck
                                                  study and evaluation for suitability. While the utmost care has been used in
Disc NPDI or 316SS                                compiling this data, we assume no responsibility for error.
Liner NBR or EPDM
Size 50mm-200mm lever
      250mm-300mm gear




                                              3
BOSS Butterfly Valves PN16



                               Size 50mm~300mm


                                                 Shaft, ASTM (1):
              ‘O’ Ring (1):                      A582 416/A276 316
              NBR (BUNA-N)
              EPDM



                                                   Short Bushing (2):
                                                   ASTM B584 C83600




           Long Bushing (2):
           Lubricated Bronze




                                                                 Seat (1):
                                                                 EPDM/NBR
                                                                 Vulcanised




                                                          Taper Pins (2):
                                                          A582 416/A276 316


                                                         Disc (1):
                                                         CF8M/A536




                                                 Body (1):
                                                 A536 65-45-12


                                  Wafer Style




                                            4
BOSS Butterfly Valves – Exploded View


                                            Shaft, ASTM (1):
                                            A582 416/A276 316




         Body (1):
         A536 65-45-12
                                            Short Bushing (2):
                                            ASTM B584 C83600




                                              ‘O’ Ring (1):
                                              NBR (BUNA-N)
                                              EPDM




                                                 Long Bushing (2):
                                                 Lubricated Bronze




                                                              Seat (1):
                                                              EPDM/NBR
                                                              Vulcanised




                                                                 Disc (1):
                                                                 CF8M/A536




                    Taper Pins (2):
                    A582 416/A276 316                             50mm~300mm




                                        5
                  1
                      CLOSE
               32
           4

                                                                             PN16 Butterfly Valves
      5
       6
    87




    OPEN
                                            6
                                                                             Ductile iron body, extended neck, ISO mounting pad, bonded
                                                                             seatline, lever operated, 50-200mm wafer, lugged or semi-lugged
                                        5




                                        4
                                    3
                              1 2
                                                14         15
                                                      A

                                                                             Material List
                                                                              Item       Part Name                    Specification
                                                                                 1       Body                         Ductile Iron(A536Gr.65-45-12)
                                                                                 2       Long Bushing                 ASTM B584 C83600
                                                            F
                                                                                 3       Stem                         ASTM A582 416/A276 316
E




                                                                                 4       Seat                         EPDM/NBR, vulcanised
                                                                                 5       Disc                         ASTM A351 CF8M/A536 65-45-12
                                                                15
                                                                14               6       Taper Pin                    ASTM A582 416/A276 316
                                                                11, 12 ,13       7       Nameplate                    Aluminium
                                                                10               8       Rivet                        Aluminium
B




                                                                9                9       Short Bushing                ASTM B584 C83600
                        D1                                      6               10       ‘O’ Ring                     NBR
    D




                                                                5               11       Bolts                        Steel
                                                                4
                                                                3               12       Nuts                         Steel
A




                                                                2               13       Spacer                       AISI1566
                                                                1               14       Latchplate                   Steel
                                            L                                   15       Handle                       Ductile Iron
                                                                             The rubber of seat is vulcanised to the body


8                                                                            Dimensions (mm)
7                                                    4–d
                                                       c                         Size           A              D1           E              B            F         D        L
                                                                                  50            80           52.88          32            161          273        81      43
                                                                                  65           89            64.49          32            175          296        97      46
                                                                                  80           95            78.84          32            181          308       112      46
                                                                                 100           114           104.04         32            200          346       140      52
                                                                                 125           127           123.32         32            213          372       160      56
                                                                                 150           139           155.58         32            226          397       193      56
                                                                                 200           175           202.46         45            260          480       245      60


                                                     n–h
                                                       c                     Flange Bolting Data/Weights
                                                                              Size       C     d         h      n      Wafer      Lug*     Stud bolt     Wafer   Lug    Semi lug
                                                                              mm                                       length    length     length        kg      kg       kg
                                                                               50       M16   19       125     4         105       35         125         3.4    4.6      3.9
                                                                               65       M16   19       145     4         108       38         130         4.1    5.9      4.7
                                                                               80       M16   19       160     8         108       38         130         4.5    6.1      5.1
                                                                              100       M16   19       180     8         115       40         135         6.3    10.0      6.9
                                                                              125       M16   19       210     8         115       40         140         8.8    12.6      9.7
                                                                              150       M20   23       240     8         120       40         150        10.4    16.1     11.0
                                                                              200       M20   23       295     12        140       50         160        17.8    25.0     19.5
                                                                             Note
                                                                             BOSS lug style butterfly valves are rated for dead end service to full working pressure of
                                                                             the valve with the downstream flange removed. In dead end service exceeding 96 hours,
                                                                             a downstream flange is recommended.
                                                                             * semi-lug length same as wafer type
                                                                             # the locking handle is optional to order




                                                                                                   6
                                PN16 Butterfly Valves




                 I
                                Ductile iron body, extended neck, ISO mounting pad, bonded




                 F
                                seatline, gear operated, 250-300mm wafer, lugged or semi-lugged


                                Material List
                                 Item     Part Name                        Specification
E




                       13           1     Body                             Ductile Iron(A536Gr.65-45-12)
                       11, 12       2     Long Bushing                     ASTM B584 C83600
                       10           3     Stem                             ASTM A582 416/A276 316
                       9            4     Seat                             EPDM/NBR, vulcanised
B




                                    5     Disc                             ASTM A351 CF8M/A536 65-45-12
         D             6
    D1




                                    6     Taper Pin                        ASTM A582 416/A276 316
                       5
                                    7     Nameplate                        Aluminium
                       4
                                    8     Rivet                            Aluminium
                       3
A




                                    9     Short Bushing                    ASTM B584 C83600
                       2
                       1           10     ‘O’ Ring                         NBR
             C                     11     Bolts                            Steel
                                   12     Nuts                             Steel
                 G
                                   13     Spacer                           AISI1566
                                   14     Latchplate                       Steel
                                   15     Handle                           Ductile Iron
    H




                           J




                                The rubber of seat is vulcanised to the body

8
7                    4–d
                                Dimensions (mm)
                       c
                                  Size     A          B          C           D        D1     E         F       G      H        I        J
                                  250     203        292         68        250.47     291    45       66      171     84      76       300
                                  300     242        337         78        301.55     343    45       78      224     85      81       300



                                Flange Bolting Data/Weights
                                 Size     C      d          h         n      Wafer       Lug*     Stud bolt   Wafer    Lug         Semi lug
                      n–h        mm                                          length     length     length      kg       kg            kg
                           c     250     355    27         M24        12       155        55         185      34.2     44.9          37.6
                                 300     410    27         M24        12       170        60         200      46.1     61.5          50.7
                                Note
                                BOSS lug style butterfly valves are rated for dead end service to full working pressure of
                                the valve with the downstream flange removed. In dead end service exceeding 96 hours,
                                a downstream flange is recommended.
                                * semi-lug length same as wafer type
                                # the locking handle is optional to order




                                         7
Resilient Liner Materials
EPDM
EPDM is a terpolymer elastomer made from ethylene-propylene diene monomer. EPDM has good abrasion and
tear resistance and offers excellent chemical resistance to a variety of acids and alkalis. It is susceptible to attack
by oil and is not recommended for applications involving petroleum oils, strong acids, or strong alkalis. It should
not be used for compressed air lines. It has exceptionally good weather aging and ozone resistance and has
fairly good resistance to ketones and alcohols.

BUNA-N (Nitrile) (NBR)
BUNA-N is a general-purpose oil resistant polymer known as Nitrile rubber. It is a copolymer of butadiene and
acrylonitrile. It has good resistance to hydraulic fluid, oil, water, and solvents. It shows good tensile strength and
abrasion resistance while displaying good compression set. It is not recommended for highly polar solvents such
as acetone and methyl ethyl ketone nor in chlorinated hydrocarbons, ozone or nitro hydrocarbons.

Liner Material Temperature Range
Liner Material                        Temperature
EPDM                                -20 to +120ºC*
BUNA-N (Nitrile)                      0 to +70ºC

BOSS designs utilise proprietary compound formulas for each elastomer. They provide the right combination
of seat compression, abrasion and chemical resistance to match a broad range of applications.
* Continuous service temperature range 0 to +100ºC
Note
Elastomeric seat materials are not suitable for steam service



Specifications
BOSS Butterfly valves are designed and manufactured to provide maximum performance on recommended
service applications at the lowest possible initial and life cycle cost. They meet or exceed the following standards
developed through research, laboratory tests and years of experience.

Butterfly Valves
• British Standard                                           BS5155 (Short Pattern)
• Manufacturers Standardization Society                      MSS SP-25
  of the Valve and Fitting Industry                          MSS SP-67

WRAS Approval
All EPDM seat BOSS butterfly valves have manufacturers WRAS Approval for sizes
2" (50mm) through to 12" (300mm) inclusive.

WRAS nameplates are available (on request) and manufacturers
Certificate of Conformity.




                                                              8
Bare Stem Dimensional Data for Actuation



Dimensions 50mm-300mm
                                                                                   D2
  Size       D     D1    D2   d0      d1     H    L    L1   h   d                  d0
DN     in
50      2    65    50    35   12.1   12.6    9    32   12   4   7




                                                                                                  L
65    21⁄2   65    50    35   12.1   12.6    9    32   14   4   7




                                                                               h
80      3    65    50    35   12.1   12.6    9    32   13   4   7
100     4    90    70    55   14.1   15.77   11   32   16   4   10




                                                                                                  L1
125     5    90    70    55   18.1   18.92   14   32   14   4   10
150     6    90    70    55   18.1   18.92   14   32   14   4   10
200     8    125   102   70   22.1    22.1   17   45   14   4   12
250 10       125   102   70   28.2   28.45   22   45   16   4   12
300 12       150   125   85   28.2    31.6   22   45   20   4   14                 D1
                                                                                   D

                                                                       4–d
                                                                                        45º




                                                                                              H




  Actuation
  Actuation of butterfly valves is available.
  Please contact your local BSS branch for full details.




  The butterfly valve range forms part of a wider range of BOSS branded
  products available exclusively from BSS. See our website for full details:



  www.bssuk.co.uk


                                                                 9
Flow Data
Cv Values for BOSS Butterfly Valves
TEDA – Standard Butterfly Valve Flow Rate Cv* Values
             Size                                                     Cv value when valve at different opening angle
     Inch               mm           10º           20º        30º            40º           50º            60º            70º         80º       90º
       2                 50          0.4           18.9       45.4           90.8         170.3          242.3          340.7       473.2     511.0
      21⁄2              65           0.8          30.3        75.7          140.1         246.1          371.0          545.1       772.2     832.8
       3                 80          1.1           45.4       83.3          147.6         265.0          439.1          692.7      1041.0    1143.2
       4                100          1.9           64.4      136.3          295.3         526.2          870.6         1377.9      2066.8    2271.2
       5                125          3.0          109.8      230.9          503.5         897.1          1483.9        2347.0      3520.4    3868.7
       6                150          7.6          170.3      359.6          776.0        1385.5          2290.2        3626.4      5439.6    6045.3
       8                200          11.4         336.9      711.7         1544.4        2752.0          4550.1        7203.6      10803.6   11871.0
      10                250          15.1         571.6      1211.3        2627.1        4682.6          7748.7        12264.7     18393.3   20214.1
      12                300          18.9         885.8      1873.8        4058.0        7233.9         11969.5        18946.0     28417.1   31229.6

Note:
1. The volume calculated by adjacent Cv data is litres per minute
2. The calculation for adjacent Cv value is based on the following unit: Pressure Difference between inlet and outlet of the valve in psi



Flow Coefficiency of Butterfly Valve: Cv Value
Cv Value is calculated and defined as follows:

                G
Cv = Q
                    P

Where:
    Q = fluid volume that passes through the valve per minute (litres/min)
    P = pressure difference between import and export of the valve (psi)
    G = density of fluid.

With the above expression, you may calculate the flow volume that passes through the valve or pressure loss
between the two ends of the valve.


Example 1
A 6" butterfly valve at 70% opening with a fluid density of 0.8 passing through the valve and a volume of
4542.8 litres/min, gives a pressure loss between the two ends of

                GQ2               0.8 x 4542.82
        P=                    =                     = 1.26psi
                Cv2                 3626.42


Example 2
A 10" butterfly valve at 90% opening, with a pressure loss of 0.6psi between the two ends of the valve, and with
a fluid of 0.8 density, the flow volume passing through the valve would be

                              P                       0.6
       Q = Cv                     = 20214.1 x               = 20214.1 x 0.866 = 17505.41 litres
                          G                           0.8




                                                                                 10
Torque Information/Data
Torque                                                      Actual Torque Value (NM)
Torque is the rotary effort required to operate a valve.
                                                                     Size                      Pressure (bar)
There are three factors that determine the valves
                                                               mm           inches     3.5     7          10.5      14
torque:
                                                               50              2     13.0    13.2         13.6    15.3
1. disc/seat interference friction,
                                                               65             21⁄2    17.9    18.9         20.1    21.5
2. bearing friction,
                                                               80              3     22.7    26.4         27.3    29.4
3. dynamic torque.
                                                               100             4      46.3    50.9         55.4    57.6
                                                               125             5      76.8    83.6         88.1    93.8
Breaking Torque
                                                               150             6     110.5   117.5        130.0   140.1
Breaking torque is a combination of the above
                                                               200             8     224.6   235.0        248.6   271.2
mentioned frictions at any given differential pressure.
                                                               250            10     365.3   422.6        486.0   508.5
This value is normally the highest required torque for
                                                               300            12     512.2   604.9        694.7   779.7
Ô
wet ’ (water and other non-lubricating media at
  ambient temperature) on/off service.

The listed torque is for NBR (BUNA-N), EPDM and
FKM(VITON).

For ‘dry’ service (clean, non-abrasive lubricating
media) multiply the highest value by 0.85. When sizing
actuators for single value application, multiply highest
value by 1.25




Caution
Pressure-temperature ratings and other performance data published in this catalogue have been developed from
our design calculation, in-house testing, field reports provided by our customers and/or published official
standards or specifications. They are good only to cover typical applications as a general guideline to users of
BOSS products introduced in this catalogue.

For any specific application, users are kindly requested to contact BSS Group Plc for technical advice, or to carry
out their own study and evaluation for proving suitability of these products to such an application. Failure to
follow this request could result in property damage and/or personal injury, for which we shall not be liable.

While this catalogue has been compiled with the utmost care, we assume no responsibility for errors, impropriety
or inadequacy. Any information provided in this catalogue is subject to change without notice for error
rectification, product discontinuation, design modification, new product introduction or any other cause that BSS
Group Plc considers necessary. This edition cancels all previous issues.




                                                       11
Storage, Handling and Installation Guide
Storage and Handling                                                     Fig.1

Store valves in a dry, clean and corrosion-free environment with no
direct exposure to the sun, leaving valves 10° open for prevention
of permanent distortion of the resilient seat. Care should be
exercised while storing valves. Avoid dropping valves on a hard
surface or stacking too high to prevent damage to valve or injury
to the handler.

Installation on Pipeline
1. Mount valve onto flanges only after flanges have been welded
   to pipes and cooled down to room temperature to prevent
   damage to resilient seat.
2. Inspect flange surface finish to assure that it is smooth and free
   of damage or deformation. Remove rust, welding splatters and
   any foreign objects from flange finish and bore that may affect       Fig.2   Fig.3
   sealing performance and operation.
3. For trouble-free operation it is essential to center and align both
   upstream and downstream flanges as shown in Fig 1.
4. To begin valve mounting, set jack bolts under the piping for flat
   support at the same height, and adjust the flange-to-flange
   distance so the it is roughly 1⁄4" (6mm) clearance on both sides
   of valve body.
5. Set two alignment bolts into lower mounting guides/lug of valve
   and install valve being careful not to force to prevent damage to
   resilient seat (Fig 2).
6. Insert the next set of bolts in the upper mounting guides/lugs
   and center valve within flanges. Before flange bolts are tightened
   carefully open to assure unobstructed disc movement.
   Interference of the disc may be the result of heavy wall pipe,
   plastic lined pipe, cast flanges or when bolted directly to a         Fig.4
   reducing flange and or another valve. It may be necessary to
   taper bore the pipe to allow free disc movement or you may
   need to install a spool piece/spacer between the two valves.
   Remove jack bolts and set all bolts and tighten alternating
   diagonally until the flange contacts the valve body (Figs 3 and 4).

Valve Operation
1. Valve operation should be limited to lever, gears or actuation.
   The use of cheater bar may result in the malfunction of the
   valve and operator.
2. Valves should be fully opened before loop test of the piping
   system with higher than normal pressure. The use of closed
   valve in place of a blind flange is not recommended.
3. Before dismantling valves from piping system, take the
   following precautions:
   a. do not loosen bolts while under pressure,
   b. do relieve line pressure,
   c. completely drain piping system.

Note
1. Use piping flanges conforming to PN16.
2. Mechanical or rubber faced flanges are not recommended.
3. NBR and EPDM are not recommended for steam service.




                                                             12
Flange Bolt Data
                               Wafer Style                              Lug Style                    Lug/Wafer Style
                                 A                                  B                                      C




                                     Bolt                           Hex Head Bolt                         Stud



                   Bolt/Stud         Hex Head      Bolt       Hex Head           Stud     Note
 Size   Diameter     Bolt                        Length A   Bolt Length B      Length C   Use pipe flanges conforming to PN16.
 mm       mm          No                    No     mm            mm              mm       Steel, cast iron, bronze and plastic may be
  50      M16          4                     8     105            35             125      used. The use of additional flange gaskets
  65      M16          4                     8     108            38             130      are not required. Threads on bolts, studs
  80      M16          8                    16     108            38             130      and nuts shall be in accordance with the
 100      M16          8                     8     115            40             135      Unified Course Thread Series (UNC), Class
 125      M16          8                    16     115            40             140      A and B (ANSI B-1.1).
 150      M20          8                    16     120            40             145
 200      M20         12                    24     140            50             165
 250      M24         12                    24     155            55             185
 300      M24         12                    24     170            60             200




                                                                    13
Metal used in the manufacture of valves and fittings
Aluminium                                                  Ductile Iron
A non-ferrous metal. Its chemical weight is about          Has similar chemical composition to grey iron but
one-third as much as steel. Aluminium resistant to         special treatment in the casting process modifies the
atmospheric corrosion but can be very reactive with        metallurgical structure yielding mechanical properties
other metals. Thus, its main use in valve is for           equal to carbon steel but retains the superior corrosion
handwheels and identification tags.                        resistance in certain environments. This metallurgical
                                                           structure change make it an ideal choice for butterfly
Copper
                                                           valve bodies.
Among the most important properties of wrot copper
materials are their thermal and electrical conductivity,   Cast Steel
corrosion resistance, wear resistance and ductility.       Has excellent mechanical properties, good resistance
Wrot copper performs well in high temperature              to stress corrosion and sulphides. Carbon steel has
applications and is easily joined by soldering or          high and low temperature strength as well as excellent
brazing. Wrot copper is exclusively used for fittings.     fatigue strength characteristics. Primarily used in the
                                                           manufacture of gate, globe, check and ball valves for
Bronze
                                                           application up to 850ºF.
One of the first alloys developed in the Bronze Age. It
is generally accepted as the industry standard for         Nickel-Plated Ductile Iron
pressure rated bronze valves and fittings. Bronze has a    Nickel coatings have received wide acceptance for use
higher strength than pure copper. It casts easily.         in chemical processing industry. These coatings have a
Machinability is excellent and is joined easily with       high tensile strength of 50 to 225ksi, which improves
solder or brazing. Bronze is very resistant to pit         the abrasion and wear characteristics. This plating is
corrosion, and is generally more resistant to most         widely specified as a disc coating for butterfly valves.
chemicals than pure copper.
                                                           400 Series Stainless Steel
Silicon Bronze                                             An alloy of iron, carbon and chromium. This stainless
Has the ductility of copper with equal or greater          is normally magnetic due to its martensitic structure
corrosion strength than copper. Silicon bronze has         and iron content. 400 series stainless steel is resistant
greater resistance to stress cracking than most            to high temperature oxidation and has improved
brasses and the increase in strength makes it an           physical and mechanical properties over carbon steel.
excellent choice for as a stem material in pressure        The most common application in valves is for stem
rated valves.                                              materials in gate, butterfly valves and for backseat
                                                           busing and wedges in cast steel valves.
Aluminium Bronze
The most widely accepted disc material used in             316 Stainless Steel
butterfly valves. Aluminium bronze is heat treatable       An alloy of iron, carbon, nickel and chromium. This
and is equal in strength to carbon steel. Formation of     material is non-magnetic and has more ductility than
an aluminium oxide layer on exposed surfaces makes         400 series stainless steel. Austenitic in structure, it has
this metal very corrosive resistant. However, it is not    very good corrosion resistance to a wide range of
recommended for high pH wet system applications.           environments, is not susceptible to stress cracking
                                                           corrosion cracking, and is not affected by heat
Brass
                                                           treatment. Most common uses in valves are for body,
Generally has good corrosion resistance and
                                                           ball and stem materials.
machinability. It is susceptible to de-zincification in
some valve design and specific application. The            329 Series Stainless Steel
primary uses for wrot brass are iron valve stems and       Duplex stainless steel have a micro-structure that is a
the ball and stem in ball valves.                          mixture of austenite and ferrite. This blend produces
                                                           alloys with twice the yield strength of austenitic alloys
Grey Iron
                                                           and upgrade in general corrosion resistance in parts
An alloy of iron, carbon and silicon that is easily cast
                                                           that are not going to be welded. The most common
and machined. In the as-cast condition, becomes a
                                                           application in valves is for stem materials in ball and
good pressure vessel but is susceptible to shock load
                                                           butterfly valves.
and can fracture under stress. Grey iron has superior
corrosion resistance to steel in certain environments
making it a standard choice for iron bodies and
bonnets of Class 125 & 250, gate, globe and check
valves.




                                                           14
                                                                                       Chemical Composition – Nominal or Maximum                                                  Nominal Physical Properties
                                                                                                                                                                         Tensile       Yield
                                                    Alu     Carbon Chrome Cobalt Copper Iron        Lead    Magn       Moly Nickel Phos Silicon Sulphur    Tin   Zinc   Strength     Strength Elongation Hardness
      ASTM No           Alloy                       Al        C      Cr    Co      Cu    Fe          Pb      Mn        Mo     Ni    P      SI      S       Sn     Zn       PSI          PSI       %         HB
      Bronze and Brass

      B-85              Die Cast Aluminum           87.0                            1.0      1.3                0.4           0.5           12.0           0.2   0.5    42,000        19,000       3.5

      B-16              Free Cutting Brass                                          61.5             3.0                                                         35.5   50,000        20,000       15.0         75

      B-61              Navy ‘M’ (Steam Bronze)     0.005                           88.0     0.3     1.5                      1.0   0.04    0.005   0.05   6.0   4.5    34,000        16,000       22.0         65

      B-62              Composition Bronze          0.005                           85.0     0.3     5.0                      1.0   0.05    0.005   0.08   5.0   5.0    30,000        14,000       20.0         60

      B-148             Alu. Bronze (Cast)          11.0                            85.0     4.0                              4.0                                       75,000        30,000       7.0          170

      B-283             Forging Brass                                               61.0     0.3     2.5                                                         38.0   50,000        18,000       25.0         80

      B-584             Leaded Semi-Red Brass       0.005                           81.0     0.4     7.0                            0.02    0.005   0.08   3.0   9.0    29,000        13,000       16.0         55
                                                                                                                                                                                                                      Properties of Valve Materials




      Iron

      A-126             Grey Iron (Class B)                                                                                         0.75            0.15         1.5    31,000                                  195

      A-395             Ductile Iron (Ferritic)              3.2                                                                    0.08     2.5                        60,000        40,000       18.0         167




15
      A-536*            Ductile Iron (Austenitic)            3.2                                                                    0.08     2.5                        80,000        55,000       6.0          160

      Stainless Steel

      A-276             304 (Wrot)                           0.08   19.0                                        2.0           9.0   0.045    1.0    0.03                75,000        30,000       40.0         202

      A-276-316         316 (Wrot)                           0.08   17.0                                        2.0          12.0   0.045    1.0    0.03                75,000        30,000       30.0         202

      A-276-329         329 (Wrot)                           0.15   26.0                                        2.0    1.5    4.5   0.045    1.0    0.03                90,000        70,000       15.0         202

      A-276-410         410 (Wrot)                           0.15   13.0                                        1.0           0.5   0.04     1.0    0.15                100,000       80,000       15.0     200/225

      A-351-CF8M        316 (Cast)                           0.08   20.0                                        1.5    2.5   12.0   0.045    1.0    0.03                75,000        30,000       30.0         202

      Carbon Steel

      A-105             Forged Carbon Steel                  0.35                                               1.0                 0.04    0.035   0.05                70,000        36,000       22.0         187

      A-216-WCB         Cast Carbon Steel                    0.30                                               1.1                 0.04     0.6    0.45                70,000        36,000       22.0         187

      Trim Steel

      A-307 Gr. B       Carbon Steel                         0.2                                                0.45                0.04            0.05                100,000                    18.0     121/212

      A-583 Gr. A       Carbon Steel                         0.37                                               1.0          0.35   0.04     0.2    0.05

      A193-B7           B-7 Alloy Steel Studs                0.4    1.0                                         0.85   0.2          0.035   0.25    0.04                125,000      105,000       16.0     126/300

      A-194-GR8         304 Stainless Steel Nuts             0.08   19.0                                        2.0           9.0   0.045    1.0    0.03                125,000      105,000       16.0     126/300

     * Chemical composition may be changed in favour of physical properties. This is permitted by ASTM A-536.
                                                                BSS BRANCH LOCATIONS THROUGHOUT THE UK & IRELAND
 Pipeline & Heating Solutions


ABERDEEN Unit 5, South Middleton Base, Greenwell Road,           DUNDEE Unit 1-3, Rutherford Road,                                   NORWICH Unit 13, Alston Road, Hellesdon Park Industrial Estate,
East Tullos, Aberdeen AB12 3AX                                   Dryburgh Industrial Estate, Dundee DD2 3XH                          Norwich, Norfolk NR6 5DS
Tel: 01224 292929 Fax: 01224 898252                              Tel: 01382 823700 Fax: 01382 826921                                 Tel: 01603 253200 Fax: 01603 418839
Email: 1550.sales@bssgroup.com                                   Email: 1580.sales@bssgroup.com                                      Email: 1710.sales@bssgroup.com

BELFAST 36-38 Duncrue Road, Duncrue Industrial Estate,           EDINBURGH Unit 2A, Pentland Industrial Estate, Loanhead,            NOTTINGHAM Unit 3, Longwall Avenue,
Belfast, Northern Ireland BT3 9BP                                Midlothian, Edinburgh EH20 9QH                                      Queens Drive Industrial Estate, Nottingham NG2 1NA
Tel: 028 9078 4000 Fax: 028 9078 4010                            Tel: 0131 440 5900 Fax: 0131 440 3761                               Tel: 0115 943 5900 Fax: 0115 986 1099
Email: 1910.sales@bssgroup.com                                   Email: 1560.sales@bssgroup.com                                      Email: 1430.sales@bssgroup.com

BIRMINGHAM Units 2 & 4 Crystal Drive, Sandwell Business Park,    EXETER Unit 6, Otter Court, Manaton Close,                          OXFORD Unit C Taurus, Peterley Road, Horspath Industrial Estate,
Smethwick, Warley, West Midlands B66 1QG                         Matford Business Park, Exeter EX2 8PF                               Cowley, Oxford OX4 2TZ
Tel: 0121 552 6000 Fax: 0121 552 5363                            Tel: 01392 457500 Fax: 01392 425976                                 Tel: 01865 398870 Fax: 01865 777552
Email: 1220.sales@bssgroup.com                                   Email: 1240.sales@bssgroup.com                                      Email: 1630.sales@bssgroup.com

BIRMINGHAM CENTRAL Unit 49, Gravelly Industrial Park,            GLASGOW Unit A, Vermont Street, Kinning Park, Glasgow G41 1LU       PETERBOROUGH Unit 2a, Centurion Business Centre,
Tyburn Road, Erdington, Birmingham B24 8TG                       Tel: 0141 418 4444 Fax: 0141 429 2638                               Sturrock Way, Bretton, Peterborough PE3 8YB
Tel: 0121 322 0370 Fax: 0121 322 2296                            Email: 1540.sales@bssgroup.com                                      Tel: 01733 336000 Fax: 01733 265790
Email: 1810.sales@bssgroup.com                                                                                                       Email: 1470.sales@bssgroup.com
                                                                 GLOUCESTER Unit C1, Eastbrook Road Trading Estate,
BOREHAMWOOD Chester Road, Borehamwood, Herts WD6 1LT             Eastern Avenue, Gloucester, GL4 3DB                                 PLYMOUTH Block G, St. Modwen Road, Parkway Industrial Estate,
Tel: 020 8327 4100 Fax: 020 8327 4101                            Tel: 01452 872200 Fax: 01452 309899                                 Plymouth, Devon PL6 8LH
Email: 1500.sales@bssgroup.com                                   Email: 1230.sales@bssgroup.com                                      Tel: 01752 675300 Fax: 01752 220063
                                                                                                                                     Email: 1260.sales@bssgroup.com
BOURNEMOUTH Unit 3B, Broom Road Business Park,                   GRIMSBY Europa Park, Gilbey Road, Grimsby DN31 2FD
Broom Road, Poole, Dorset BH12 4PA                               Tel: 01472 265100 Fax: 01472 241638                                 PRESTON Unit 1 & 2, Brookfield Street, Preston PR1 1NR
Tel: 01202 711300 Fax: 01202 711301                              Email: 1680.sales@bssgroup.com                                      Tel: 01772 557800 Fax: 01772 259285
Email: 1400.sales@bssgroup.com                                                                                                       Email: 1310.sales@bssgroup.com
                                                                 HULL Copenhagen Road, Sutton Fields Industrial Estate,
BRENTFORD Transport Avenue, Great West Road,                     Hull, East Yorkshire HU7 0YH                                        READING Units A2 & A3, Worton Drive,
Brentford, Middlesex TW8 9HF                                     Tel: 01482 625800 Fax: 01482 838870                                 Worton Grange Industrial Estate, Reading, Berks RG2 0TG
Tel: 020 8232 2727 Fax: 020 8232 2730                            Email: 1610.sales@bssgroup.com                                      Tel: 0118 923 8900 Fax: 0118 975 0497
Email: 1110.sales@bssgroup.com                                                                                                       Email: 1180.sales@bssgroup.com
                                                                 KINGS CROSS Unit 2, 1 Brewery Road, Islington, London N7 9QJ
BRISTOL Albert Road, St Philips, Bristol BS2 0BS                 Tel: 020 7619 7600 Fax: 020 7700 2482                               ROMFORD King George Close, Eastern Avenue West,
Tel: 0117 972 7900 Fax: 0117 972 7901                            Email: 1160.sales@bssgroup.com                                      Romford, Essex RM7 7PS
Email: 1250.sales@bssgroup.com                                                                                                       Tel: 01708 771800 Fax: 01708 723168
                                                                 LEEDS Turnkey Park Estate, Whitehall Road, Leeds LS12 6AD           Email: 1130.sales@bssgroup.com
CAMBRIDGE Unit 3, Rosemary Lane, Cambridge CB1 3LQ               Tel: 0113 203 2203 Fax: 0113 279 8662
Tel: 01223 404040 Fax: 01223 240420                              Email: 1350.sales@bssgroup.com                                      SHEFFIELD Unit 15, Oakham Drive, Parkwood Industrial Estate,
Email: 1840.sales@bssgroup.com                                                                                                       Sheffield S3 9QX
                                                                 LEICESTER 66 Cobden Street, Leicester LE1 2LB                       Tel: 0114 289 3900 Fax: 0114 276 7178
CARDIFF Unit 4, Trident Park, Glass Avenue, Ocean Way,           Tel: 0116 242 7800 Fax: 0116 253 2456                               Email: 1460.sales@bssgroup.com
Cardiff CF24 5EN                                                 Email: 1440.sales@bssgroup.com
Tel: 029 2043 2400 Fax: 029 2049 7815                                                                                                SOUTHAMPTON Unit A1, Parham Drive,
Email: 1280.sales@bssgroup.com                                   LEWES Unit 5, South Downs Business Park, Brooks Road,               Boyatt Wood Trading Estate, Eastleigh, Hampshire SO50 4NU
                                                                 Lewes, East Sussex BN7 2FB                                          Tel: 023 8068 3700 Fax: 023 8064 3928
CARLISLE Unit 2A, Port Road Business Park, Carlisle CA2 7AJ      Tel: 01273 485000 Fax: 01273 480709                                 Email: 1140.sales@bssgroup.com
Tel: 01228 517600 Fax: 01228 598090                              Email: 1190.sales@bssgroup.com
Email: 1780.sales@bssgroup.com                                                                                                       STOCKTON Teesway Industrial Estate,
                                                                 LINCOLN Units 3/4, Crofton Drive, Allenby Industrial Estate,        Stockton on Tees, Teesway TS18 2RS
CHESSINGTON Oakcroft Road, Chessington Industrial Estate,        Lincoln LN3 4NR                                                     Tel: 01642 665500 Fax: 01642 674652
Chessington, Surrey KT9 1RH                                      Tel: 01522 565700 Fax: 01522 512678                                 Email: 1660.sales@bssgroup.com
Tel: 020 8974 3800 Fax: 020 8391 5241                            Email: 1480.sales@bssgroup.com
Email: 1950.sales@bssgroup.com                                                                                                       STOKE ON TRENT Units 6 & 7, Etruria Way, Basford,
                                                                 LIVERPOOL 82/94 Great Howard Street, Liverpool L3 7AX               Stoke on Trent ST4 6JQ
COLCHESTER Unit 6, Smeaton Close, Severalls Industrial Park      Tel: 0151 482 2500 Fax: 0151 207 2317                               Tel: 01782 382382 Fax: 01782 621456
Colchester, Essex CO4 9QY                                        Email: 1330.sales@bssgroup.com                                      Email: 1360.sales@bssgroup.com
Tel: 01206 754720 Fax: 01206 752649
Email: 1200.sales@bssgroup.com                                   LONDON DOCKLANDS Units 6 & 7, Thomas Road Industrial Estate,        SWANSEA Century Park, Valley Way, Swansea Enterprise Park,
                                                                 Limehouse, London E14 7BN                                           Swansea SA6 8QP
CORK Unit 20, South Link Park, Ballycurren Road, Grange, Cork    Tel: 020 7531 3900 Fax: 020 7537 4849                               Tel: 01792 762300 Fax: 01792 775922
Tel: 00353 214 321588 Fax: 00353 214 321595                      Email: 1920.sales@bssgroup.com                                      Email: 1290.sales@bssgroup.com
Email: 1960.sales@bssgroup.com
                                                                 LUTON 1 Trojan Court, Laporte Way, Luton, Beds LU4 8RJ              SWINDON Unit 4A, Euroway Industrial Estate, Ramsden Road,
COVENTRY Unit 17, Torrington Avenue, Coventry,                   Tel: 01582 875600 Fax: 01582 452050                                 Swindon SN5 8YW
West Midlands CV4 9HN                                            Email: 1420.sales@bssgroup.com                                      Tel: 01793 601500 Fax: 01793 512144
Tel: 024 7669 4744 Fax: 024 7647 0574                                                                                                Email: 1210.sales@bssgroup.com
Email: 1490.sales@bssgroup.com                                   MAIDSTONE Unit 5, Wood Close, Quarry Wood Industrial Estate,
                                                                 Aylesford, Kent ME20 7UB                                            WANDSWORTH Unit 5, 307-309 Merton Road, Wandsworth,
CRAWLEY 12A Denvale Trade Park, Haslett Avenue East,             Tel: 01622 713600 Fax: 01622 713616                                 London, SW18 5JS
Crawley RH10 1SS                                                 Email: 1850.sales@bssgroup.com                                      Tel: 020 8877 9191 Fax: 020 8877 9719
Tel: 01293 610170 Fax: 01293 523388                                                                                                  Email: 1760.sales@bssgroup.com
Email: 1390.sales@bssgroup.com                                   MANCHESTER Unit 1, Columbus Way, Off Broadway, Salford,
                                                                 Manchester M50 1UU                                                  WIGAN Unit 2, Lockflight Buildings, Wheatlea Industrial Estate,
CROYDON Unit 34, Factory Lane, Croydon, Surrey CR0 3RL           Tel: 0161 888 6464 Fax: 0161 888 6465                               Wheatlea Road, Wigan WN3 6XP
Tel: 020 8662 2300 Fax: 020 8681 6142                            Email: 1340.sales@bssgroup.com                                      Tel: 01942 405540 Fax: 01942 405541
Email: 1120.sales@bssgroup.com                                                                                                       Email: 1720.sales@bssgroup.com
                                                                 NEWCASTLE Sanderson Street, Newcastle-upon-Tyne NE4 7PJ
DARTFORD Unit 11 Orbital One, Green Street, Green Road,          Tel: 0191 256 5100 Fax: 0191 272 3115                               WIRRAL Rossmore Road East, Rossmore Industrial Estate,
Dartford, Kent DA1 1QG                                           Email: 1650.sales@bssgroup.com                                      Ellesmere Port, South Wirral, Cheshire CH65 3DD
Tel: 01322 289039 Fax: 01322 289149                                                                                                  Tel: 0151 348 5400 Fax: 0151 357 2001
Email: 1570.sales@bssgroup.com                                   NORTHAMPTON Riverside Way, Bedford Road,                            Email: 1320.sales@bssgroup.com
                                                                 Northampton NN1 5NX
DERBY Riverside Road, Pride Park, Derby DE24 8HH                 Tel: 01604 251400 Fax: 01604 620588
Tel: 01332 685600 Fax: 01332 685601                              Email: 1410.sales@bssgroup.com
Email: 1450.sales@bssgroup.com

DUBLIN White Heather Industrial Estate,
301 South Circular Road, Dublin 8
Tel: 00353 14 165100 Fax: 00353 14 165165
Email: 1930.sales@bssgroup.com                                                   Registered Office: The BSS Group plc, Fleet House, Lee Circle, Leicester LE1 3QQ, Registered in England Number: 60987
                                                                                                       Tel: 0116 262 3232 Fax: 0116 253 1343 E-mail: reception@bssgroup.com Web: www.bssuk.co.uk

								
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