Ductile iron Duo check valve Dual-plate Wafer Type Rubber Resilient Seated
Features of Ductile iron Duo Dual-plate Wafer Check Valves:
One Piece Body Design
Short Face-to-face
Inline Double Plate
Spring-loaded Disc for Quick Closure
Wafer End Standard, Flanged Ends Available
Applicable Standards of Ductile iron Duo Dual-plate Wafer Check Valves:
a) Design&Manufacture: API 6D, API 594
b) Face to Face: API 6D, ASME B16.10, EN 558
c) Connection End: ASME B16.5, EN 1092, JIS B2220
d) Test and Inspection: API 6D, EN 12266, API 598