All Categories > Check Valves > Silent Check Valves > Wafer Pattern Silent Check Valve - Cast Iron > Advanced Search Advanced Search in Wafer Pattern Silent Check Valve - Cast Iron Unit of Measure Imperial Metric Both Specifications Size (mm) No Preference 50 65 80 100 125 150 200 250 300 Size (in) No Preference 2 2 1/2 3 4 5 6 8 10 12 Flow Coefficient Cv No Preference 57 87 127 228 357 432 768 1240 1740 Weight (kg) No Preference 2.3 3.6 4.5 7.7 12.3 18.2 40.9 72.6 154.4 Weight (lb) No Preference 5 8 10 17 27 40 90 160 340 Maximum Operating Pressure PMO 1 150 psi at 400 ºF 200 psi at 150 ºF 250 psi at 400 ºF 400 psi at 150 ºF ANSI Class 125 – 125/250 ANSI End Connection Wafer type Valve Type Silent Check Seat Material Metal-Bronze Metal-Stainless Steel Resilient-Buna-N Resilient-EPDM Resilient-Viton Body Material A126-B Cast Iron Plug Material B148 C954 Aluminum Bronze or 316 Stainless Steel Seat Material 2 B148 C954 Aluminum Bronze or 316 Stainless Steel Spring Material 316 Stainless Steel Bushing Material B148 C954 Aluminum Bronze Set Screw Material 300 Series Stainless Steel 1 Recommended for liquid service only. 2 Resilient seat materials are available. Please consult factory. Clear Cancel Advanced Search