Screw down non-return valve with flanges Cat no 468 - straight

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Screw down non-return valve with flanges Cat no 468 - straight Powered By Docstoc
					Screw down non-return valve with flanges Cat. no. 468 - straight form Cat. no. 333 - angle form ND 15÷250 / NP 4,0 MPa / Tmax = 400 0 C

Dimensions: ND DZ DP D0 doxn L mm 15 20 25 32 40 50 65 80 100 125 150 200 250 95 105 115 140 150 165 185 200 235 270 300 375 450 45 58 68 78 88 102 122 138 162 188 218 285 345 65 75 85 100 110 125 145 160 190 220 250 320 385 14 x 4 14 x 4 14 x 4 18 x 4 18 x 4 18 x 4 18 x 8 18 x 8 22 x 8 26 x 8 26 x 8 30 x 12 33 x 12 130 150 160 180 200 230 290 310 350 400 480 600 730 90 95 100 105 115 125 145 155 175 200 225 275 2 2 2 2 3 3 3 3 3 3 3 3 3 16 18 18 18 18 20 22 24 24 26 28 34 38 186 186 186 260 270 280 320 370 402 436 496 576 665 170 170 170 240 250 265 290 320 350 390 440 515 12 12 12 10 12 16 16 20 25 40 45 60 65 120 120 120 160 160 160 200 250 320 320 320 400 500 L1 f g H H1 h Dk Weight Cat. no. 333 kg 4,1 4,7 4,9 10,6 13,6 16,0 28,0 37,0 48,0 59,2 75,5 152,5 326,0 3,6 4,2 4,7 11,0 12,3 16,0 27,5 36,0 52,0 60,0 86,0 175,0 Cat. no. 468

Application: Screw down non-return valves as one-way type prevents the pipelines against reverse flow of medium. Additionally function allows to stop the medium flow. The valves should be installed on the pipeline in horizontal or vertical position with handwheel in upper position, paying attention on correct flow direction, that should be in accordance with marking on the body. Medium: The valves are applicable for water, steam, oil and other non-aggressive fluids and gases with operating parameters in the range from -10 °C up to 400 °C, for marine service - marked "WM", for aggressive medium like acids, salt solutions etc. made of stainless steel. Application range:

Nominal pressure NP [MPa] 1.0619 1.4312 1.4408

Maximum operating pressure at medium temperature [ 0K] ( 0C ) 263 do 393 0K (-10 do 120 0C) 4,0 4,0 4,0 473 0K (200 0C) 3,5 2,6 2,6 523 0K (250 0C) 3,2 2,1 2,4 2,3 573 0K (300 0C) 2,8 623 0K (350 0C) 2,4 673 0K (400 0C) 2,1

For stop function, differential pressure between inlet and outlet for valves ND 125-200 can not exceed the values listed in schedule below. DN [mm] Dp [MPa] 125 3,3 150 2,1 200 1,4

Materials: Material standard 1.0619 18-8 CrNi 1.0460 1.0619 13Cr 13Cr 13Cr 18-8CrNi Graphite for marine service 1.0619 18-8 CrNi 1.0460 1.0619 17Cr 17Cr 18-8CrNi 18-8CrNi Graphite stainless steel 1.4312 18-8 CrNi 1.4312 1.4312 18-8CrNi 18-8CrNi - // - // Graphite 1.4408 18-8 CrNi 1.4408 1.4408 18-8CrNi 18-8CrNi - // - // Graphite

Description Body Body seat Bonnet - ND 15 - 50 - ND 65 - 250 Stem Disc seat - ND 15 - 50 - ND 65 - 80 - ND 100 - 250 Packing

Remarks: 1. 2. 3. 4. 5. 6. 7. Standard flanges: with raised face "z" acc. to PN-85/H-74307, drilled acc. to PN-85/H-74306 Standards On request - the other type of raised face acc. to PN-85/H-74306 (or PN-ISO 7005-1 :1996) The flanges performance acc. to ANSI, BS, DIN Standards also available. We produce the valves with flanges designed for NP (0,6 ÷ 2,5) [MPa ]. Tests and requirements of valves acc. to PN-92/M-74001. Tightness class acc. to PN-92/M-74001: - for non return function "D" - for stop function "A" Face to face dimensions acc. to PN-85/M-74005. Quality certificate, depends on customer request - acc. to PN-EN 10204:1997. We produce the valves designed for marine service -WM acc. to PN-W-74017 Standard. On request, the valves can be tested and meet the requirements of Classification Societies as: PRS, GL, LRS, BV, DNV, PMPC, ABS, RINA.


				
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Description: Screw down non-return valve with flanges Cat no 468 - straight