Pressure reducer: application and characteristics
Pressure reducer is the most important elementwhen using gas-cylinder equipment. The device ensures the operability of the entire system. It is necessary to reduce the gas pressure to the working pressure at the exit of the cylinder, and also to maintain the stability of the system, regardless of the changes occurring in the tank.
If the pressure reducer is not installed, it canthere will be a locking effect at which the gas flow will reach the critical line, and its exhaust velocity will equal the speed of sound. When the force actually reaches such a value, the balloon will start, like a balloon, jump in different directions.
There are several types of devices installed on gas tanks.
So, the pressure reducer of air is used onenterprises to reduce and maintain a constant value of the load in communications. Also this device is used by scuba divers to reduce air pressure.
Oxygen reducer is indispensable in constructionfor the implementation of gas cutting and welding. It is actively used in the medical industry. Propane pressure reducer is used in metallurgy and machine building, in construction, to create conditions for performing autogenous works, as well as in everyday life. The device allows you to create a preset pressure and adjust it.
The acetylene reducer is often used in utilities for cutting pipelines and providing welding operations.
Adaptations allow working with any kinds ofgases. For hydrogen, combustible methane and other gases, devices with a left-hand thread are used. This is done specifically to prevent accidental connection of the device to the oxygen cylinder. Editors designed to work with non-flammable gases, helium, nitrogen and others have a right thread. In addition, to avoid confusion, the devices are painted in different colors.
According to the principle of operation, the gearboxes of direct andreverse action. In the latter case, when the pressure of the gas is reduced in the cylinder, in operating condition it rises. These devices are considered more convenient for operation. Using a high-pressure direct-acting pressure reducer, the operating state decreases with decreasing gas head.
When installing the device, you must carefully observe the instructions and precautionary measures, since an accident may occur during start-up and the system may explode.
Install the gear unit after installationmechanical cleaning filter. Also, there should be a possibility of future maintenance of filters and replacement of cartridges. When tightening the device, it is necessary to take into account the flow direction indicated by an arrow on the cylinder casing. In addition, shut-off valves must be used for maintenance.
Reducers are manufactured under pressure from high quality materials, aluminum alloys, bronze, stainless steel or plastic.