Check valve

It is a flexible connection element used in pipeline systems. It is composed of an elastic rubber body and embedded metal flanges or threads. With its outstanding compensation, vibration reduction and noise reduction capabilities, it has become an indispensable key component in modern pipeline engineering.

Its purpose remains the same: to protect sensitive and expensive downstream equipment—such as pumps, control valves, spray nozzles, and meters—from damage, clogging, and wear caused by pipeline scale, rust, weld slag, and other particulates.

Its core mission is to filter and remove solid particle impurities such as rust, sand, and pipe debris from fluid media like water, steam, oil, and gas, thereby protecting downstream precision equipment from damage or blockage.

It trades the ultra-high pressure capability of flanged valves for significant gains in installation speed, flexibility, and cost-effectiveness. It is the go-to choice for a massive range of commercial and industrial building systems, especially fire protection.

The flange swing check valve is a fundamental, robust, and widely used component for preventing backflow in piping systems. Its flanged ends make it ideal for bolted, permanent installations in medium to large pipe sizes where flow is consistent and the risk of water hammer is understood and managed.

The silent check valve is a high-performance check valve specially designed to eliminate the Water Hammer effect and loud noise caused by the sudden backflow of the interrupted medium in the pipeline system. It represents an important technological upgrade of traditional swing and lift check valves.

Flanged foot check valves, often also known as bottom valves, are a special type of check valve specifically installed at the end of the suction pipe of a water pump.

Rubber flap check valves are automatic valves specially designed for pipeline systems transporting liquids, slurries or gases.