Fluorine lined valve factory: Precautions for the installation and use of oxygen pressure reducing valves

Fluorine lined valve factory Precautions for installation and use of oxygen pressure reducing valve:

(1) There are many specifications for oxygen pressure reducing valves according to different usage requirements. The higher import pressure is mostly, and the lower import pressure is not less than 2.5 times the export pressure. There are many specifications for export pressure, generally, with higher export pressures being.
(2) When installing a pressure reducing valve, it should be determined whether its connection specifications are consistent with the joints of the steel cylinder and the system being used. The pressure reducing valve and the steel cylinder are connected by a hemispherical connection, and the two are matched by tightening the nut. Therefore, when in use, the two hemispherical surfaces should be kept smooth, and the clamp type should be maintained Fluorine-lined Butterfly Valve To ensure good airtightness. Before installation, high-pressure gas can be used to blow away dust. Fluorine lined DC globe valve If necessary, materials such as polytetrafluoroethylene can also be used as gaskets.
(3) Oxygen pressure reducing valves should be strictly prohibited from coming into contact with grease to avoid fire accidents.
(4) When stopping work, the residual air in the pressure reducing valve should be released completely, and then the adjusting screw should be loosened to prevent the elastic element from being deformed under long-term pressure.
(5) Pressure reducing valves should avoid impact and vibration, and should not come into contact with corrosive substances.

1. When using, first turn on the main switch of the steel cylinder, then rotate the pressure regulating screw of the low-pressure gauge clockwise to compress the main spring and drive the film, spring pad, and top rod to open the valve. The high-pressure gas imported in this way enters the low-pressure chamber through throttling and pressure reduction, and is then directed to the working system through the outlet.
2. Rotate the adjusting screw to change the height of the valve opening, thereby adjusting the flow rate of high-pressure gas and achieving the desired pressure value.
3. Pressure reducing valves are equipped with safety valves. It is a device that protects the pressure reducing valve and ensures its safe use, as well as a signal device for the failure of the pressure reducing valve. If due to the valve gasket PTFE lined valve When the door is damaged or due to other reasons, the outlet pressure rises on its own and exceeds a certain allowable value, the safety valve will automatically open for exhaust.

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