How to adjust the oxygen pressure reducing valve, how to adjust the pressure of the oxygen pressure

1. When using, turn on the main switch of the cylinder first, and then clockwise.

Turn the low-gauge pressure regulating screw so that it compresses the main spring and drives the diaphragm, spring spacer and ejector rod to open the valve. In this way, the imported high-pressure gas enters the low-pressure chamber after throttling and decompression from the high-pressure chamber, and leads to the working system through the outlet.

2. Rotate the adjusting screw to change the height of the valve opening, so as to adjust the flow of high-pressure gas and reach the required pressure value.

3. Pressure reducing valve.

All are equipped with safety valves.

It is a device that protects the pressure reducing valve and makes it safe to use, and it is also a signal device for the failure of the pressure reducing valve. If, due to damage to the valve pad, valve or other reasons, the outlet pressure rises on its own and exceeds a certain permissible value, the safety valve automatically opens and vents.

4. Precautions for the installation and use of oxygen pressure reducing valves:

1) According to the different requirements of use, there are many specifications of oxygen pressure reducing valves. The maximum inlet pressure is mostly the lowest inlet pressure is not less than a multiple of the outlet pressure. There are many specifications of outlet pressure, generally, the highest outlet pressure is.

2) When installing the pressure reducing valve, it should be determined whether its connection specifications are consistent with the coupling of the cylinder and the system used. The pressure reducing valve and the cylinder are connected by a hemispherical surface, and the two are completely consistent by tightening the nut. Therefore, the two hemispheres should be kept smooth and clean when used to ensure a good airtight effect.

Dust can be blown away with high-pressure gas before installation. PTFE can also be used if necessary.

and other materials as gaskets.

3) The oxygen pressure reducing valve should not be in contact with grease to avoid fire accidents.

4) When the work is stopped, the residual gas in the pressure reducing valve should be discharged, and then the adjusting screw should be loosened to avoid the long-term compression deformation of the elastic element.

5) The pressure reducing valve should avoid impact vibration and should not be in contact with corrosive substances.

5. Attention to other gas pressure reducing valves:

Some gases, such as permanent gases such as nitrogen, air, argon, etc., can be treated with oxygen pressure reducing valves. However, there are also some gases, such as corrosive gases such as ammonia, that require special pressure reducing valves. Common on the market are nitrogen, air, hydrogen, ammonia, and acetylene.

Propane, water vapor.

and other special pressure reducing valves. The usage and precautions of these pressure reducing valves are basically the same as those of oxygen pressure reducing valves. However, it should also be noted that:

Special pressure reducing valves are generally not used for other gases. In order to prevent misuse, some special pressure reducing valves have special connections between the cylinder and the cylinder. For example, hydrogen and propane both use a left thread, also known as a reverse thread, and special care should be taken when installing.

Before adjusting the pressure reducing valve, the downstream valve should first be closed; If you want to increase the outlet pressure, you should rotate the pressure reducing valve in a clockwise way, but if you want to reduce the outlet pressure of the pressure reducing valve, you need to rotate the pressure reducing valve in a counterclockwise way; After adjusting the pressure value of the pressure reducing valve, open the downstream valve.

2. What are the precautions for the use of pressure reducing valves?

1. Before using the pressure reducing valve, it is necessary to check whether the pressure reducing valve is installed at the front end of the inlet of the alarm valve group, and if the pressure reducing valve is connected with more than two alarm valve groups, a standby pressure reducing valve needs to be installed. In addition, it is necessary to check the back side of the pressure reducing valve to persuade the installation of the pressure test drain valve to ensure that the pressure reducing valve can be used properly.

2. In the process of using the pressure reducing valve, if there are impurities in the water, the valve core and needle valve of the pressure reducing valve are prone to blockage, which will lead to the failure of the pressure reducing valve.

3. In order to ensure that sufficient water can be provided in the event of a fire, the outlet dynamic pressure of the pressure reducing valve has been clearly stipulated, and the outlet dynamic pressure of the pressure reducing valve shall not be less than 65% of the set value.

The pressure regulator screw of the pressure reducer should be loosened in advance before the cylinder valve can be opened, and the cylinder valve should be opened slowly and not too violently to prevent high pressure.

After opening the cylinder valve, check whether there is air leakage in each part and whether the pressure gauge is working normally, and then connect the hose after the inspection is completed.

When adjusting the working pressure, the pressure regulating screw should be rotated slowly to prevent the high-pressure gas from washing out the diaphragm or damaging the low-pressure gauge.

The pressure reducer should not be stained with grease, and if there is grease, it must be cleaned before use.

The high-pressure chamber of the oxygen pressure reducing valve is connected to the cylinder, and the low-pressure chamber is the gas outlet and leads to the use system. The pressure gauge indicates the pressure of the gas stored in the cylinder. The outlet pressure of the low pressure gauge can be controlled by an adjusting screw.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following are the top ten domestic first-line valve brand manufacturers in 2022-2023, but for reference only: Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

1. Close the downstream valve of the pressure reducing valve;

2. Find the place to adjust the pressure, rotate clockwise, the outlet pressure becomes larger, and the counterclockwise rotation outlet pressure becomes smaller;

3. After adjusting to the required pressure value, open the downstream valve.

Isn't there a thimble on top of the pressure reducing valve? Use that thimble to adjust the size, the thimble top tightened, the pressure increases, and the thimble loosens, the pressure is smaller.

If you want to adjust, you can directly adjust it through the instructions on the top of the manual.

So if you need to adjust some of the corresponding functions or some aspects of the oxygen pump, you can find the corresponding ones through the relevant settings, and in many cases, some of the configurations included in it can be added manually.

How does the oxygen pressure valve mix alcohol? Just like this kind of acting, the adjustment of the foot room must be adjusted inside the regulating valve.

How the oxygen pressure reducing valve is regulated and how it is traded, it depends on some of their specific methods and what the internal items look like.

It should be no more than 2 kg pressure on the left open and right closed.

How to adjust the oxygen pressure reducing valve, the oxygen pressure reducing valve according to its use method or the relevant personnel yourself.

I'll come to how to adjust the oxygen pressure reducing valve, this is not a random adjustment, you must find someone who understands to be able to adjust, otherwise the adjustment of the leakage will be over.

How to adjust the method of adjustment can be adjusted by yourself.,Put this thing in your own memory.,That's it.。 Very prominent, unambiguous.

The way the valve is adjusted, we can see the flow rate we need, and then adjust the valve clockwise and counterclockwise to complete.

So how do you check the conditions? The quality of this product is a problem, as a result, how can I just make a product if I want to end it?

Tool picks: wrenches, oxygen pressure reducing valves, etc.

The method of adjusting the pressure of the oxygen pressure reducing valve is mainly divided into five steps, and the specific operation is as follows:

1. It is necessary to check the specifications and adjustable pressure range of the oxygen pressure reducing valve to ensure that the pressure to be adjusted is within the adjustable range.

2. It is necessary to check the temperature of the oxygen pressure reducing valve, because with the change of the temperature of the chain, the pressure will also change, so the temperature must be confirmed when adjusting the pressure.

3. It is necessary to check the exhaust pipe of the oxygen pressure reducing valve to confirm whether the exhaust pipe is firmly connected and everything is normal.

4. You can start to adjust the oxygen pressure reducing valve, and record the original pressure value before adjustment, so that you can adjust back to the original pressure value. Then, depending on the need, the pressure can be adjusted up or down, generally by adjusting the position of the spool and the position of the screw rod.

5. After the adjustment is completed, the screw rod should be fixed in place with a hand or wrench to prevent the screw rod from loosening the key and causing the pressure to be unstable. <>

Kiss! The adjustment of the oxygen pressure reducing valve needs to be very careful, because oxygen is a flammable and explosive gas, and if it goes wrong, it can lead to serious safety incidents. The following is a brief introduction to the steps of DC adjustment of oxygen pressure reducing valve:

1.First, connect the oxygen pressure reducing valve to the oxygen cylinder to ensure that the connection is secure to prevent oxygen leakage. 2.

Open the valve of the oxygen cylinder and set the desired outlet pressure as needed, in general, the outlet pressure should be set to the pressure required for the oxygen use. 3.Use a pressure surplus gauge to detect the outlet pressure of the regulator and ensure that it matches the desired outlet pressure.

4.If the outlet pressure needs to be adjusted, it can be raised quietly by rotating the adjusting screw on the pressure reducing valve. Care should be taken to avoid excessive pressure and dangerous oxygen leakage.

5.After the adjustment is completed, close the valve of the oxygen cylinder and check whether the pressure reducing valve and tubing are firm to prevent oxygen leakage. It should be noted that in order to ensure the safety of oxygen, the adjustment of the oxygen pressure reducing valve needs to be carried out by professionals and the safety operating procedures must be strictly followed.

When the cylinder is deflated or the pressure reducing valve is opened, the action must be slow. If the valve is opened too quickly, the gas in the working part of the pressure reducing valve will be greatly increased due to adiabatic compression, which may cause the parts made of organic materials such as rubber packing, rubber film fibrous liner to burn out, and the pressure reducing valve can be completely burned out. In addition, electrostatic sparks generated by rapid degassing and oil contamination of the pressure reducing valve will also cause ignition and burn out the parts of the pressure reducing valve.

Before installing the pressure reducing valve, open the oxygen cylinder valve slightly and blow off dirt to prevent dust and moisture from entering the pressure reducing valve. When opening the cylinder valve, the outlet of the cylinder valve shall not be aimed at the operator or others, so as to prevent the high-pressure gas from suddenly rushing out and injuring people. The joint between the outlet of the pressure reducing valve and the gas rubber pipe must be tightened with an over-annealed wire or clamp; Prevent the risk of detachment after air supply.

When loading and unloading the pressure reducing valve, attention must be paid to prevent the pipe joint thread from slipping, so as to avoid injection due to unstable spinning. In the process of work, it is necessary to pay attention to the pressure value of the working pressure gauge. When stopping work, the pressure regulating screw of the pressure reducing valve should be loosened first, and then the oxygen cylinder valve should be closed, and the gas in the pressure reducing valve should be slowly drained, so that the spring and the pressure reducing valve can be protected from damage.

After the work is completed, the pressure reducing valve should be removed from the gas cylinder and stored properly.

The pressure reducing valve must be regularly calibrated and the pressure gauge must be regularly inspected. This is done to ensure the reliability of the pressure regulation and the accuracy of the gauge readings. If the pressure reducing valve is found to be frozen during use, thaw it with hot water or steam, and never bake it with flame or red iron.

After the pressure reducing valve is heated, the residual moisture in it must be blown off; It must be kept clean, and the pressure reducing valve and pressure gauge of various gases should not be replaced.