1. What is the use of the pressure reducing valve on the oxygen cylinder?
The oxygen cylinder stores high-pressure oxygen. High-pressure oxygen cannot directly supply oxygen, so usually oxygen There will be a pressure reducing valve on the bottle to reduce the high-pressure oxygen in the oxygen bottle to a lower working pressure.
Generally, the pressure reducing valve of an oxygen cylinder can reduce the pressure from the oxygen cylinder to 0.20~0.29Mpa, making the flow stable, ensuring safety and ease of use; when the inlet pressure and outlet flow of the oxygen cylinder change , the pressure reducing valve can ensure that the outlet pressure remains stable.
2. How to adjust the pressure of the oxygen cylinder pressure reducing valve
The oxygen cylinder can change the pressure of oxygen by adjusting the pressure reducing valve. Correctly adjusting the pressure of the pressure reducing valve is crucial to ensure The safety and stability of oxygen supply are crucial. The specific adjustment methods are:
1. Safety inspection
(1) Ensure that the work area is well ventilated and Keep away from flammable materials.
(2) Check whether the oxygen cylinder and oxygen supply system are working properly and ensure there is sufficient oxygen supply.
2. Prepare tools
Prepare the adjustment tools for the pressure reducing valve (such as a wrench), and if necessary, prepare a pressure gauge (such as a pressure reducing valve There is a pressure gauge on it (no need to buy another one) for measuring and verifying the adjusted pressure.
3. Adjust the pressure
(1) Find the pressure adjustment screw or handle on the oxygen cylinder pressure reducing valve (usually on the top or side of the valve ).
(2) Using appropriate tools, turn the screw or handle clockwise or counterclockwise to adjust the opening of the valve.
4. Test and verify pressure
(1) Connect the pressure gauge to the outlet of the pressure reducing valve to ensure correct connection.
(2) Slowly turn on the oxygen supply and observe the reading of the pressure gauge.
(3) Gradually adjust the pressure adjustment screw or handle until the required working pressure is reached.
(4) Turn off the oxygen supply and observe the reaction of the pressure gauge. The pressure should remain stable near the set value.
5. Fixing and marking
(1) When the required working pressure is reached, use appropriate tools to fix the pressure adjustment screw or handle on the this position to avoid accidental adjustments.
(2) inMark the pressure reducing valve to clearly indicate the set working pressure value.
3. Precautions for adjusting the pressure of the oxygen cylinder valve
When adjusting the pressure of the oxygen cylinder pressure reducing valve, please follow the following precautions to ensure operation Safety and effectiveness:
1. Before performing pressure adjustment, understand the required working pressure range and ensure that the pressure reducing valve can meet the requirements to avoid exceeding the rated working pressure of oxygen equipment and pipelines.
2. Be careful when adjusting the pressure to avoid sudden adjustments or unnecessary intensity. During the adjustment process, always pay attention to the reaction of the pressure gauge to ensure the stability of the pressure.
3. Regularly check the working status and sealing performance of the pressure reducing valve to ensure that it can work normally. If there are any abnormalities, the pressure reducing valve should be repaired or replaced in time.
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