According to the role and use, what are the valve classification?
Classification:
Release Time：2021-05-21
According to the role of the opening and closing valve is different, the valve classification method is many, here is introduced according to the role and use of classification. Block valve: block valve, also known as closed-circuit valve, its role is to connect or cut off the medium in the pipeline. Block valves include gate valves, globe valves, plug valves, ball valves, butterfly valves and diaphragms. Check valve: check valve, also known as one-way valve or check valve, its role is to prevent the backflow of media in the pipeline. The bottom valve of the water pump is also a check valve.
According to the role of the opening and closing valve is different, the valve classification method is many, here is introduced according to the role and use of classification.
(1) cut-off valve: cut-off valve is also called closed-circuit valve, its role is to connect or cut off the medium in the pipeline. Block valves include gate valves, globe valves, plug valves, ball valves, butterfly valves and diaphragms.
(2) check valve: check valve, also known as one-way valve or check valve, its role is to prevent the backflow of media in the pipeline. The bottom valve of the water pump is also a check valve.
(3) safety valve: the role of the safety valve is to prevent the medium pressure in the pipeline or device from exceeding the specified value, so as to achieve the purpose of safety protection.
(4) regulating valve: regulating valve type including regulating valve, throttle valve and pressure reducing valve, its role is to adjust the medium pressure, flow and other three numbers.
(5) Diverter valve: Diverter valve category includes various distribution valves and traps, etc., and its role is to distribute, separate or mix the media in the pipeline.
According to the nominal pressure valve classification
(1) vacuum valve: refers to the working pressure is lower than the standard atmospheric pressure valve.
(2) low pressure valve: refers to the nominal pressure PN ≤ 1.6Mpa valve.
(3) Medium pressure valve: refers to the valve with nominal pressure PN of 2.5, 4.0 and 6.4Mpa.
(4) high pressure valve: refers to the valve whose pressure PN is 10 ~ 80Mpa.
(5) ultra high pressure valve: refers to the nominal pressure PN≥ 100Mpa valve.
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