Shanghai Keke Valve Group Co., Ltd., Jiangsu Nichelson Automatic Control Valve Co., Ltd., Tianjin Exxon Valve Co., Ltd.

Valves are pipeline accessories used to open and close pipelines, control flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveyed medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc.

Valve is a control component in the fluid transportation system. It has the functions of cutting off, regulating, diversion, preventing reverse flow, stabilizing pressure, diverting flow or overflow pressure relief.

Valves used in fluid control systems range from the simplest stop valves to various valves used in extremely complex automatic control systems, with a wide range of varieties and specifications.