Your Federal Quarterly Tax Payments are due April 15th Get Help Now >>

IMO preload by sanmelody

VIEWS: 77 PAGES: 8

									                                                                            IMO - 32
                                                                            Installation, Maintenance & Operating Instructions


                                                                            QUADRA-POWR®
                                                                            SPRING-DIAPHRAGM
                                                                            ACTUATORS

                                                                            Read these entire instructions carefully before
                                                                            installation or servicing.




  WARNING                                                                        CAUTION
  KEEP HANDS AND CLOTHING AWAY FROM THE VALVE PORTS AT                           An actuator must be sized accurately for proper operation. Refer to
  ALL TIMES.                                                                     Bulletin A110-1 for actuator torque outputs and the appropriate valve
  DO NOT ATTEMPT TO DISASSEMBLETHE SPRING CARTRIDGE. IF                          bulletin for operating torques.
  MAINTENANCE IS REQUIRED, THE ENTIRE ACTUATOR MUST BE                           When servicing a valve actuator assembly, the best practice is to
  RETURNED TO NELES-JAMESBURY.                                                   remove the entire assembly from service.
  BEFORE INSTALLING THE VALVE AND ACTUATOR, BE SURE THAT                         An actuator should be remounted on the valve from which it was
  THE INDICATOR POINTER ON TOP OF THE ACTUATOR IS COR-                           removed. The actuator must be readjusted for proper open and
  RECTLY INDICATING THE VALVE POSITION. FAILURE TO AS-                           closed position each time it is remounted.
  SEMBLE THESE PRODUCTS TO INDICATE CORRECT VALVE
  POSITION COULD RESULT IN PERSONAL INJURY.
  SHUTOFF AND BLEED ALL SUPPLY LINES BEFORE INSTALLATION
  OR SERVICING. DO NOT REMOVE DIAPHRAGM CASE SCREWS
                                                                               INSTALLATION
  (27), NUTS (29) OR CASE (15) WHILE ACTUATOR IS PRESSURIZED.                  1. Check to see that the QUADRA POWR’S® position indicator is
                                                                               mounted correctly for the failure mode you desire: either spring-to-
                                                                               close or spring-to-open.


In the spring-to-close configuration the drive end of the actuator should      In the spring-to-open configuration the drive end of the actuator should
look like this:                                                                like like this:




                   SPRING-TO-CLOSE                                                                  SPRING-TO-OPEN


In this mode the actuator will cycle clockwise to close upon loss of           In this mode the actuator will cycle counterclockwise to open upon loss
pressure.                                                                      of pressure.
If the actuator is not set up in the configuration desired, remove the four
hex head bolts (27), (33), indicator plate (12), indicator retainer (28),
                                                                                  MAINTENANCE
and pointer (24), and remount them on the opposite mounting bosses                Under normal operating conditions the actuator requires only periodic
as shown.                                                                         observation to ensure proper adjustment. Standard replacement of
2. Mount the actuator to the valve following the directions in the AMI or         “soft” parts in the QUADRA-POWR® consists of items numbered 6, 9,
valve IMO.                                                                        14, 28, 31, 59, 51 and 52 on non-adjustable units and items numbered
                                                                                  6, 9, 14, 18, 28, 31, 50, 51 and 52 on adjustable units.
3. Connect a regulated air supply to the 3/8" NPT fitting in the upper
diaphragm casing (15). CAUTION; Maximum air line pressure is 65                   Replacing the Diaphragm
psi.                                                                              CAUTION: Be sure that the air supply line to the actuator is discon-
4. Adjust the stop screws (19) by releasing jam nut (23) and turning.             nected.
Stops can only be adjusted when driver arm (3) is off the stop being              1. Back off nuts (29) from the bolts (27), holding the upper and lower
adjusted. Be sure to retighten jam nut (23).                                      diaphragm casings together until the nuts are flush with bolts ends. Do
Adiustment of Spring Preload (Adjustable Units Only)                              not remove nuts completely from bolts. If tension still exists on the bolts,
                                                                                  then the spring package is not properly contained. STOP DISASSEMB-
NOTE: Adjustable QUADRA-POWR® actuators are normally set at the                   LY, Retighten nuts and return the actuator to the factory. If the spring
factory (without a valve) at 3 psi preload, on 12 psi range (C12S) units,         cartridge proves to be intact, remove the nuts (29) and remove the bolts
and 6 psi preload on units with a range of 24 psi (C24S). Further                 (27).
adjustment may be necessary to better match the actuator to the
particular valve and operating conditions.                                        2. Lift off the upper casing (15) and diaphragm (14).

ADJUSTMENT - After mounting actuator to valve and setting stops                   3. Inspect the inside of both the upper and lower diaphragm casings
                                                                                  for any rough spots or foreign matter which may cause abrasion to the
1. Remove the access cover (11) (page 6) on the side of the actuator.             diaphragm.
See page 6 for locations.
                                                                                  4. Place new diaphragm (14) on diaphragm plate (10). Place upper
2. Accurately supply the desired preload pressure.                                casing (15) on, and line up all the holes. Do not pinch or stretch the
3. Using a screwdriver or 3/8" diameter steel rod, turn the spring                diaphragm.
adjuster (17) until the valve just leaves the stop.                               Note: lf any bolts (17 or 19) show signs of corrosion, replace them.
4. Cycle the valve using air pressure within the limits of the controller.        5. Insert hex head bolts (27) in all holes. Do not force the bolts through
Check full open and full closed valve positions.                                  the diaphragm.
5. If more spring preload is necessary to fully cycle the valve, turn the         6. Install nuts (29) on bolts and tighten uniformly using the standard
spring adjuster (17) clockwise, viewed from casing (15) end of actuator.          practice of tightening diametrically opposite bolts in sequence. Tighten
If less spring preload is necessary, turn adjuster counterclockwise.              to approximately 20 lb.-ft. on Series C through F, and tighten 6 to 8 lb.
6. Recheck valve positions and adjust further if necessary.                       -ft. on Series B actuators.
7. Replace cover (11) with four screws(21).




                                                              SERIES B ACTUATORS




                                                                              2
DISASSEMBLY
1. Remove the actuator to a clean well-lit area, and obtain the following    12. Inspect the inside of both the upper and lower diaphragm casings
tools:                                                                       for any rough spots or foreign matter which may cause abrasion of the
two (2) 9/16" wrenches, preferably one being a ratchet (7/16" for Series     diaphragm.
B); one (1) screwdriver; one (1) external snap ring pliers (Waldes            13. Lift the entire spring cartridge out of the unit.
standard pliers #0400); one (1) external snap ring pliers (Waldes            WARNING: DISASSEMBLY OF THE SPRING PACKAGE SHOULD NOT
standard pliers #0200); one (1) plastic faced mallet                         BE ATTEMPTED SPECIAL EQUIPMENT IS REQUIRED. DISASSEMBLY
2. Remove cover (5) by removing four screws (21).                            OF THE SPRING PACKAGE MAY RESULT IN SERIOUS PERSONAL
                                                                             INJURY. IF MAINTENANCE IS REQUIRED. SHIP THE ENTIRE AC-
3. Use air pressure to remove spring preload by partially stroking the
                                                                             TUATOR TO NELES-JAMESBURY.
actuator. If diaphragm (14) is ruptured, replace as instructed in the
previous section.                                                            14. Remove one retaining ring (9) and nylon washer (6) from the drive
4. Connect a regulated air supply to the pressure port and slowly            pin (8) that holds the driver arm (3) to the two connecting plates (7).
increase air pressure until driver arm (3) moves slightly off stop screw     15. lt is usually not necessary to remove the lower diaphragm casing
(19).                                                                        from the spring housing (Series D, E, F), or the spring housing from the
5. From the shaft end of the actuator, remove the two snap rings (28)        housing. However, if removal is required, heat must be used to loosen
indicator pointer (24), and thrust washers (31).                             the Loctite®. When reassembling, the following torque and Loctite®
                                                                             recommendations must be met: Cap screws are to be torqued as
6. Loosen the hex head bolt (25) that clamps the driver arm (3) to the       follows: Series B spring housing, 24 lb. -ft., using Loctite® 271. Series
driver (2). (It is not necessary to remove this bolt.)                       C spring housing to housing, 45 lb. - ft., using Loctite® 271. Series D,
7. Using plastic faced mallet, lightly tap the driver out of the bearings.   E, F spring housing to housing, 50 lb. - ft., using Loctite® 271. Series D
                                                                             and E except E60S II, lower diaphragm casing to spring housing, 24 lb.
8. Shut off and bleed the air pressure to zero. Disconnect the air lines.    -ft., using Loctite® 271. Series E60S II, 55 lb. -ft., using Loctite® 271.
9. Remove the hex head bolts (27) and nuts (29) holding the upper and        Series F, 120 lb. - ft., using Loctite® 271.
lower diaphragm casings together.
                                                                             16. Good practice dictates that all bearings should be removed and
10. Lift off the upper casing (15) and diaphragm (14).                       replaced.
11. Inspect the diaphragm for signs of wear, ruptures or mechanical          17. Inspect and clean all components.
damage.




                                                                         3
ASSEMBLY
1. To aid assembly, spread light oil or grease on the new bearing O.D.‘s.     be tapped into the spline with a plastic faced mallet. In Series B, C, and
2. Press pivot pin bearing (52) into driver arm (3). This is best done in     D (Mod. II), the arms (3) must rest against shoulders on the drivers (2).
an arbor press, but a vise could be used if care is taken not to damage       14. Install a thrust washer (31) on each end of the driver (2) and secure
the bearing.                                                                  with retaining rings (28).
3. Press top and bottom driver bearings (50) and (51) into the housing        15. Tighten hex head screw (25) to clamp driver arm. Apply a torque of
(1) flush with the surface.                                                   8 lb. -ft. on Series B actuators; 15 lb. -ft. on Series C actuators; and 30
4. Apply grease to inside of all bearings. Molybdenum disulfide grease        lb. -ft. of torque on D (Mod. II), E, and F Series actuators.
is highly recommended.                                                        16. Shut off and bleed the air pressure.
5. Assemble retaining ring (9) to pivot pin (8). Slide on new nylon washer    17. Install the indicator pointer (24) and hold in place with a retaining
(6) and insert through connector plates (7) and driver arm (3). Be sure       ring (28). Note: Refer to Installation instructions for spring-to-close or
that the clamp bolt (25) is on the side of the connecting plates with the     open configuration.
circular cut facing out. Slide on washer (6). Then fasten with retaining
                                                                              18. Replace nameplate cover(s) (5) with screws (21).
ring (9).
6. Apply a good grade of grease to O.D. of spring. Lower the spring
cartridge assembly into the main housing. Make certain the driver arm         OPERATING INSTRUCTIONS
is in the proper position with bolt head facing as shown in the drawing.      The operating pressure is determined by the actuator designation, e.g.
On adjustable actuators insert thrust washer (18) into housing before         30 psi for D30S, 40 psi for D40S. Adjustable actuator designations
lowering spring cartridge.                                                    indicate span, e.g. D12S operates between 3 - 15 psi, D24S operates
7. Rotate spring cartridge slightly until driver arm is perpendicular to      between 6 - 30 psi. See Bulletin A110-1 for further information regarding
bearing center line.                                                          pressure and torque output.
8. Place new diaphragm (14) on diaphragm plate (10). Place upper
casing (15) on, and line up all the holes. Do not pinch or stretch the
diaphragm.
9. Insert hex head bolts (27) in all holes. Do not force the bolts through                                                             RKQ-2
                                                                              Diaphragm Series B Q/P Act.
the diaphragm.
                                                                              Diaphragm Series C Q/P Act.                              RKQ-3
10. Install nuts (29) on bolts and tighten uniformly using the standard       Diaphragm Series D Q/P Act.                              RKQ-4
practice of tightening diametrically opposite bolts in sequence. Tighten      Diaphragm Series E Q/P Act.                              RKQ-5
to approximately 20 lb. -ft. on Series C through F, and tighten to 6 to 8     Diaphragm Series F Q/P Act.                              RKQ-6
lb. -ft. on Series B actuators.
                                                                              Series B Q/P Act. (Non-adj.)                             RKQ-12
11. Connect a regulated air supply to the pressure port, and slowly
                                                                              Series C Q/P Act. (Non-adj.)                             RKQ-13
increase the air pressure until the driver arm can freely be moved into
                                                                              Series D Q/P Act. (Non-adj.)                             RKQ-14
position in alignment with the driver bearings.
                                                                              Series E Q/P Act. (Non-adj.)                             RKQ-15
12. Insert driver (2) through larger bearing (50). Place spacer (20) on       Series F Q/P Act. (Non-adj.)                             RKQ-16
driver of E and F only. Insert driver through driver arm (3). Put another
spacer (20) on the driver then insert it into the smaller bearing (Series F   Series C Q/P Act. (Adjustable)                           RKQ-23
only has this last spacer.) Rotate the driver until the aligning pin at the   Series C Q/P Act. Model II (Adjustable)                  RKQ-53
edge of the spline slips into its slot near the pivot pin. Note: This pin     Series D Q/P Act. (Adjustable)                           RKQ-24
should not be fitted into the clamping slot. Series B, C, D (Mod. II)         Series E Q/P Act. (Adjustable)                           RKQ-25
QUADRA-POWR® have squares instead of splines, and no spacers (20).
13. Once the spline or square has been properly aligned, the driver can
                                            BILL OF MATERIALS AND PARTS

                                                                              SERIES B         SERIES C         SERIES D II          SERIES E          SERIES F
                                                                                Types
                                                                                B20S             Types           Types                 Types             Types
                                                                             B30S B40S         C30S C40S       D30S II D40S II       E30S E40S         F30S F40S
                                                                             B50S B60S         C50S C60S       D50S II D60S II       E50S E60SII       F50S F60S
    PART
                                                                              Quantity          Quantity        Quantity              Quantity          Quantity
    NO.               NAME                         MATERIAL
    1         Housing                    Cast iron                               1                 1                 1
    2         Driver                     Stainless steel                         1                 1                 1                                     1
    3         Driver Arm                 Carbon steel                            1                 1                 1                                     1
    4         Actuator Rod*              Carbon steel                            1                 1                 1                                     1
    5         cover                      Carbon steel                            1                 1                 2                                     2
    6         Pivot Pin Washer*          Nylon                                   4                 4                 4                                     4
    7         connector Plate’           Carbon steel                            2                 2                 2                                     2
    8         Pivot Pin*                 Stainless steel                         2                 2                 2                                     2
    9         Pivot Pin Retainer*        Stainless steel                         4                 4                 4                                     4
    10        Diaphragm Plate*           Cast iron                               1                 1                 1                                     1
    12        Position Indicator Plate   Stainless steel                         1                 1                                                       1
    13        Lower Casing               Carbon steel                           N/A               N/A                                                      1
    14        Diaphragm                  Buna-N                                  1                 1                                                       1
    15        Upper Casing               Carbon steel                            1                 1                                      1                1
    19        stop screw                 Carbon steel                            2                 2                 2                    2                2
    20        spacer                     Nylon                                  N/A               N/A               N/A                                    2
    21        cap Screw                  Carbon steel                            4                 4                 8                    8                8
    23        Jam Nut                    Carbon steel                            2                 2                 2                    2                2
    24        Indicator Pointer          Aluminum                                1                 1                                                       1
    25        Cap screw                  Carbon steel                            1                 1                                     1                 1
    26        Lock Washer                Carbon steel                           N/A                4                N/A                 N/A (6)           20 (9)
    27        Cap screw                  Carbon steel                           12                20                18                  24                30
    28        Driver Retainer            Stainless steel                         3                 3                 3                   3                  3
    29        Lock Nut                   carbon steel                            9                17                29                  34 (7)            30
    30        Spring Retainer*           Cast iron                               1                 1                                     1                  1 (4)
    31        Thrust Washer              Nylon                                   2(8)              2 (8)             2                   2                  2
    32        Spring Housing             cast iron                               1 (1)             1 (1)                                  1 (2)            1 (1)
    33        Cap screw                  carbon steel                           N/A               N/A                4                    4                4
    34        Lock Washer                Carbon steel                            4                N/A                4                    4                4
    36        Cap Screw                  Carbon steel                           N/A               N/A               10                   10               20
    38        Cap Screw                  Carbon steel                            4                 6                 2                    2                4
    39        Lock Washer                Carbon steel                           N/A               N/A                4                    4                4
    43        Compression Spring*        Carbon steel                            1                 1                                                       1
    45        Caution Plate              Stainless steel                         1                 1                                                       1
    50        Top Driver Bearing         Metal-backed acetal resin               1                 1                                                       1
    51        Bottom Driver Bearing      Metal-backed acetal resin               1                 1                                                       1
    52        Pivot Pin Bearing          Metal-backed acetal resin               2                 4                 2                    2                2
    53        Name Plate                 Aluminum                                1                 1                                                       1
    54        Stud                       Carbon steel                           N/A               N/A                2                    2               N/A
    55        Hex Nut                    Carbon steel                           N/A               N/A                2                    2               N/A
    60        Caution Plate              Stainless steel                         1                 1                                                       1




*Part of spring cartridge not removable in field. Two of four pivot pin washers (6) one of two pivot pins (8), two of four pivot pin retainers (9),
and one of two pivot pin bearings (52) are also part of the spring cartridge. With Series C, two of four pivot pin bearings (52) are part of spring
cartridge.


 NOTE 1: Carbon steel          NOTE 2: Carbon steel for E60S only               NOTE 3: Nickel plated carbon steel            NOTE 4: Ductile iron

 NOTE 6: 10 on E60S            NOTE 7: 24 on E60S                               NOTE 8: Stainless steel                       NOTE 9: Flat washer Series F


ADDlTlONAL ITEMS                           11          Access    Cover          Carbon steel               1                     1                 1
                                           16          spring   Seat*           Cast iron                  1                     1                 1
FOR                                        17          Spring    Adjuster*      Cast iron                  1                     1                 1
ADJUSTABLE UNITS                           18          Thrust   Washer          Nylon                      1                     1                 1




                                                                                   5
6
HANDLING QUADRA-POWR® ACTUATORS
           The illustration below shows the most suitable way to sling
           QUADRA-POWR® actuators. The accompanying table shows
           actuator weights and the dimension for proper sling place-
           ment.




    NOTE: When a valve, topworks, or jackscrew is mounted to the actuator, this
    dimension will change and vary according to the weight of the valve. Proper
    sling location should then be found by trial.




                                       7
                  Jamesbury Inc. • 640 Lincoln Street • Box 15004
                    Worcester, Massachusetts 01615-0004 USA
       Tel: 508-852-0200 l Fax: 508-852-8172 l Internet: www.jamesbury.com
             NELES CONTROLS GROUP   l   A MEMBER OF RAUMA CORPORATION



1/92

								
To top