(1) Truncation type: such as gate valves, globe valves, plug valves, ball valves, butterfly valves, needle valves, diaphragm valves, etc. Shutoff valves, also known as closed circuit valves or shut-off valves, are used to connect or cut off the medium in the pipeline.

(2) Check valves: such as check valves, also known as one-way valves or check valves. Check valves are automatic valves that prevent media backflow in pipelines, pump and drive motor reversal, and leakage of container media. The bottom valve of the water pump suction valve also belongs to the category of check valves.

(3) Safety category: such as safety valves, explosion-proof valves, accident valves, etc. The function of a safety valve is to prevent the pressure of the medium in the pipeline or device from exceeding the specified value, thereby achieving the purpose of safety protection.

(4) Regulating valves, such as regulating valves, throttle valves, and pressure reducing valves, are used to regulate the pressure, flow rate, and other parameters of the medium.

(5) Diverter type: such as distribution valves, three-way valves, and drain valves. Its function is to distribute, separate or mix the medium in the pipeline.

(6) Special purpose categories: such as cleaning valves, vent valves, drain valves, exhaust valves, filters, etc. Exhaust valves are essential auxiliary components in pipeline systems, widely used in boilers, air conditioning, oil and gas, and water supply and drainage pipelines. It is often installed at high points or bends to eliminate excess gas in pipelines, improve the efficiency of pipeline use, and reduce energy consumption.