Clearly define the purpose of the corresponding valve in the equipment or deviceDetermine the working conditions of the valve: applicable to the medium characteristics, working pressure, working temperature and control method, etc.
The check valve opening and closing parts rely on the flow and force of the medium to open or close automatically to prevent the medium from flowing back. The check valve belongs to the automatic valve category, which is mainly used in the pipeline where the medium flows in one direction, and only allows the medium to flow in one direction to prevent accidents.
Commonly used in industries such as petroleum, chemical industry, power station, metallurgy, natural gas, and urban pipeline networks, especially suitable for occasions with high requirements for sealing and safety.
Globe Valve is widely used in various industrial and civil pipeline systems. It has excellent cut-off performance, good adjustment ability and tight sealing. It is very suitable for systems with strict control requirements on flow, pressure and temperature.
before using the pressure gauge, the pressure gauge pointer starts ...
Maintain daily maintenance of the electric device. The maintenance of the electric device is generally not less than once a month. The maintenance content includes: the surface should be clean, without dust accumulation, the device should not be contaminated by steam, water, and oil; the sealing surface and points should be firm and tight. There is no leakage; the lubrication parts should be oiled as required, and the valve stem nuts should be greased; the electrical parts should be intact, without phase failure, the automatic switch and thermal relay should not trip, and the indicator light should display correctly.
