1. Selection instructions for pressure reducers:

1.1. Determine the material of the pressure reducer based on the gas medium used by the user;

The pressure reducer fully considers the influence of gas on the material during the design process. Therefore, if selected improperly, it will directly affect the product's performance, lifespan, and even

It can cause serious consequences. Therefore, when selecting a pressure reducer, it is necessary to choose according to the applicable gas. It is strictly prohibited to substitute or mix, such as using pressure reducers with grease

Burning and explosion may occur on oxygen equipment;

For pressure reducers used for corrosive, toxic, or flammable and explosive gases, safety discharge safety valves will be installed, while for ordinary gases, in-situ discharge safety valves are generally used;

1.2. Select the category of pressure reducer based on the user's usage situation. Usually divided into three categories

Pressure reducer for gas cylinders (directly connected to gas cylinders for pressure reduction adjustment);

Pressure reducer for piping (used for pressure regulation in pipeline gas supply systems, generally with lower intake pressure);

Pressure reducer for gas cylinder collection device (used for pressure reduction regulation in centralized gas supply device, generally with the same inlet pressure as the steel cylinder);

1.3. Based on the user's demand for the output pressure of the pressure reducer, determine the output pressure of the pressure reducer

Principle: The output pressure of the selected pressure reducer should be higher than the user's operating pressure. Generally, the output pressure of the pressure reducer is equal to 1.2-1.5 times the operating pressure

More suitable;

1.4. Based on the user's demand for the output flow rate of the pressure reducer, select the Cv value or flow rate of the pressure reducer.

After clarifying the category, gas used, inlet pressure, outlet pressure, and outlet flow rate of the pressure reducer, the selection of the pressure reducer can be reviewed based on the Cv value of the pressure reducer

Whether it meets the traffic requirements.

Generally speaking, the flow rate of the pressure reducer is closely related to the size of the pressure reducer structure, and the output flow rate of the pressure reducer is directly proportional to the size of the structure.

If installation conditions permit, try to choose a pressure reducer with a larger structure. Because under the same flow rate, its relative output voltage stability performance is,

Larger structures are more superior.

1.5. Confirm the inlet and outlet gas connection method of the pressure reducer based on the size of the steel cylinder or pipeline connection.