Regulating valves are used to change the flow and kinetic energy by changing the throttling area to achieve pressure reduction; by controlling and changing the flow of fluid, the opening of the valve can be changed to achieve switching of the pipeline medium: closing or opening the pipeline; replacing the flow part of the main valve, etc. Mainly used for pipeline disconnection, distribution and change the flow of materials .
In industrial production, it is common to encounter an air filtration pressure reducing valve - pressure reducing valve, also known as pressure relief valve. The invention is a foot-operated automatic valve that uses a valve blade to directly sense the pressure downstream. In this way, the valve can reduce the controllable compressed gas, according to a certain ratio, to a certain output pressure, and then send it to the cylinder for filling, and the airway will open automatically when a certain outlet pressure is reached, thus maintaining a stable output flow. This kind of regulator usually has a manual manipulation mechanism, which can be adjusted manually in case of malfunction.
According to its structural form, smg air source pressure reducing valve can be divided into three major categories: membrane type, torsion spring membrane type and bellows type. According to its working characteristics, it can be divided into two categories: general-purpose type and high-temperature and high-pressure type. Suitable for low pressure places, high pressure places using high temperature and high pressure places.