Our company has a long history of manufacturing check valve ， moreover, more than 60 years for manufacturing swing check valve. In order to meet the strict requirements for check valve applicable to all kinds of industry situations, our company has, for many years, been attending to research and putting forward new-brand check valve to the market which includes: extraction check valve, wafer butterfly check valve, swing check valve, swing (micro block slow close) check valve, butterfly buffering check valve, double disk buffering check valve, inclined seat buffering check valve, etc..

Standard: GB 、 Q/TF 、 BS

Suitable Medium: water, seawater

Suitable Temperature: ≤ 80 ℃
Materials of Main Parts: Gray cast iron, ductile iron, alloy cast iron, cast steel, carbon steel, stainless steel

Sealing Material: copper alloy to copper alloy, SS to SS, rubber to copper alloy, SS(X type)

Leakage Rate: metal sealing type is GB/T13927 (IS05208) class D

rubber sealing type is GB/T13927 (IS05208) class A

Characteristics:

· The above valves are automatic valves, which are opened through the pressure of the medium in pipeline, and closed through the pressure of reverse flow, higher reverse flow pressure, better sealing performance.

· The design takes water hammer and pressure increasing into consideration which makes no worry about its safety and reliability.