Wafer Type Silent Check Valves

1.Standard: Conforms to API/DIN 2.Face to Face: ANSI B16.1 3.Material: Cast Iron/Ductile Iron 4.Normal Pressure: PN10/16,ANSI 125/150 5.Size: DN50-DN300
DESCRIPTION Flange according to ANSI 125/150 Face to face according to ANSI 125/150 Excellent tightness Low head loss Extremely reliable Excellent hydraulic result Simplicity in mounting and use Working pressure: 1.0Mpa/1.6Mpa Pressure test according to standards: API598 DIN3230 EN12266-1 working temperature: NBR: 0℃~+80℃ EPDM: -10℃~+120℃ Medium: Fresh Water, Sea water, all kinds of oil, acid, alkaline liquid etc. MATERIAL LIST
NO. Part Material
1 Body GG25/GGG40
2 Guide Stainless steel
3 Disc Stainless steel
4 O-Ring NBR/EPDM/VITON
5 Seal ring NBR/EPDM/VITON
6 Bolts Stainless steel
7 Axle Stainless steel
8 Spring Stainless steel
DIMENSION
DN(mm) 50 65 80 100 125 150 200 250 300
L (mm) 67 73 79 102 117 140 165 210 286
ΦA(mm) 59 80 84 112 130 164 216 250 300
ΦB (mm) 108 127 146 174 213 248 340 406 482
ΦC(mm) 120 140 148 180 210 243 298 357 408
N-R(mm) 4-R10 4-R10 4-R10 8-R10 8-R11.5 8-R12.5 8-R12.5 12-R15 12-R15