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Oxygen Valve A Device For Protecting The Safety Valve And Making It Safe To Use

Ningbo Fenfa Valve Co.,Ltd | Updated: Sep 22, 2017

Oxygen valves in the physical and chemical experiments, often use oxygen, nitrogen, hydrogen, argon and other gases. These gases are generally stored in a dedicated high pressure gas cylinder. When used through the pressure relief valve to reduce the gas pressure to the required range, and then through other control valve fine, so that the gas input using the system. The most commonly used oxygen valve for the oxygen valve, referred to as oxygen table.

Oxygen valve high pressure chamber connected with the cylinder, low pressure chamber for the gas outlet, and access to the use of the system. The high pressure table shows the pressure of the gas stored in the cylinder. The outlet pressure of the low pressure gauge can be controlled by the adjustment screw.

When using the first switch to open the main switch, and then clockwise turn the low pressure gauge pressure adjustment screw, so that the main spring and drive the film, spring pad and mandrel and the valve open. This imports of high-pressure gas from the high-pressure chamber by throttling after decompression into the low-pressure room, and exports to the working system. Turn the adjustment screw to change the height of the shutter opening to adjust the throughput of the high pressure gas and reach the desired pressure value.

Oxygen valves are fitted with safety valves. It is to protect the valve and make it safe to use the device, but also the failure of the valve signal device. The safety valve will automatically open the exhaust if the outlet pressure rises and exceeds a certain allowable value due to the damage to the shutter pad, the shutter, or for other reasons. This type of valve in the pipeline should generally be installed horizontally.

Use of oxygen valves

(1) According to the requirements of the use of different, oxygen pressure valve has many specifications. The maximum import pressure is mostly, the minimum import pressure is not less than 2.5 times the export pressure. Export pressure specifications are more, generally, the maximum export pressure for.

(2) When installing the pressure reducing valve, make sure that the connection specifications are consistent with those of the cylinder and the system. Pressure reducing valve and cylinder with hemispherical connection, by tightening the nut so that the two fully consistent. Therefore, in use should be kept two hemispherical smooth, to ensure good airtight effect. Before installation can use high-pressure gas blowing dust. If necessary, can also be used PTFE and other materials for the gasket.

(3) oxygen valve should be strictly prohibited contact with grease, so as to avoid fire accidents.

(4) to stop working, the pressure relief valve should be put in the net, and then loosen the adjustment screw to avoid long-term deformation of the elastic components.

(5) Oxygen valve should avoid shock vibration, not with corrosive substances in contact.

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