Dual flap wafer check valve WAFER DOUBLE DOOR CHECK VALVE

Size DN40-DN600 PN10/16/25     ANSI Class 125/150/250

Dongsheng cast iron wafer body double disc check valves have pin retainer holes in the body where plugs are inserted to hold the hinge pin and stop pin in place. Dongsheng offers a retainerless wafer body design in ductile iron, stainless steel, and other specially cast alloys .

Advantages:

Low purchase cost

Compact design

Non-slam principle of operation

Light weight

Easy installation

Good flow characteristic and less pressure drop

Suitable for horizontal and vertical up flow

Materials Structure:

Body:GG-25 Gray cast iron

Disc: 316 Stainless steel , GGG40 ductile iron

Connection:

Wafer type

Nominal Diameter:

DN40 (1.5”) – DN600 (24”)

Working Pressure:

Up to 16 bars

Working Temperature

-10°C to 120°C for EPDM seat

-10°C to 80°C for NBR seat

-10°C to 150°Cfor Viton seat

Typical Applications:

Heating air-conditioning pipe lines
High frequency lines
Fire extinguishing system
Vessel pipelines
Iron and steel industry
Mineral, oil industry
Wood working, pulp and paper industry
Textile industry
Water and condensate lines

Applicable fluids:

Water , warm water , sea water , air and weak acid