Technical parameters of silencing slow closing check valve
Nominal pressure£º1.0~2.5MPa
Nominal diameter£º40~100mm
Slow closing time£º3~60Ãë
Applicable media: clear water, sea water and sewage
Applicable temperature: 0 ~ 80 ¡æ (200 ¡æ if necessary)
Flange standard£ºGB/T17241.6¡¢GB/T 9113¡¢EN1092
Test standard£ºGB/T 13927¡¢API 598
installation diagram
Material of main parts
Part name | valve body | Disc | Valve stem, oil cylinder and piston | Spring | valve seat |
Material Science | Cast iron, cast steel | carbon steel | stainless steel | stainless steel | Nitrile rubber |
Design drawing of silencing slow closing check valve
Main connection dimensions mm
DN | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |
L | 140 | 150 | 170 | 180 | 190 | 200 | 210 | 230 | 250 | 270 | 290 | 310 | 330 | 350 | 390 | 430 | 470 | 510 | 550 |
H | 200 | 215 | 225 | 235 | 280 | 290 | 310 | 350 | 415 | 450 | 480 | 550 | 585 | 640 | 720 | 780 | 840 | 990 | 1050 |
H1 | 88 | 98 | 108 | 118 | 130 | 148 | 172 | 210 | 240 | 264 | 297 | 324 | 351 | 379 | 434 | 491 | 549 | 600 | 655 |