Detailed Product Description

Specifications of Rubber Disc Check Valve (HC44X/SFCV)

Rubber disc non-return valve is mainly composed of the three major parts including body, bonnet and rubber disc. Made of lined steel plate, steel rod and reinforced nylon cloth, and coated with rubber outside, its disc boasts of  a service life of 1 million times of open and close. This valve takes a full flow area type to effect little water head loss, no sundries deposited, and easy servicing  etc.

this valve is mainly applicable for water supply and drainage system, mounted at the outlet of pump to prevent damage caused by backflow and water hammer. this valve can also be mounted on the by-pass pipe of inlet and outlet pipe to prevent water in reservoir back flow into water supply system.

1) Size: 2" - 24"
2) Class: 150lbs - 600lbs

Technical standards:
1) Design and manufacture: API 6D
2) Face-to-face: ANSI B16.10
3) Flange end: ANSI B16.5
4) Inspection and test: API 598

Main materials:
1) Body and bonnet: cast iron, ductile cast iron, WCB, WCA, WCC, A351
2) Disc: steel + intensive nylon cloth + NBR