(1) cut-off valve: also known as closed-circuit cut-off valve valve, its role is to connect or disconnect the line of media. Cut off valve, including valve, globe valve, plug valves, ball valves, butterfly valves and diaphragm valves and so on.
(2) Check: Check also known as the check valve, check valve, its role is to prevent the line of medium back. Pump water off the end of the valve also belongs to check class.
(3) safety valve: the role of safety valve to prevent the line class or device in the medium pressure exceeds the set value, so as to achieve security purposes.
(4) control valve: regulating valves including control valves, throttle valves and pressure reducing valve, and its role in the regulation of media pressure, flow and other parameters.
(5) shunt valve: shunt valve including distribution valves and steam traps, etc., whose role is assigned, the line of separation or mixed media.
(6) Exhaust Valve: exhaust valve is an essential auxiliary piping system components, widely used in boilers, air conditioning, oil and gas, water supply and drainage canal. Often installed on high ground or bend, etc., eliminate excess gas pipeline to improve the management of road use efficiency and reduce energy consumption.