The two-part pneumatic unit is usually called the air source treatment two-part unit. It plays the role of filtering and regulating pressure in the pneumatic transmission system. The two-part pneumatic unit includes an air filter and a pressure reducing valve, because some brands of solenoid valves and cylinders can achieve Oil-free lubrication (relying on grease to achieve lubrication function), there is no need to use an oil mist! The filtration degree is generally 50-75μm, and the pressure adjustment range is 0.5-10Mpa. If the filtration accuracy is required (5-10μm, 10-20μm, 25-40μm) and the pressure adjustment is 0.05-0.3Mpa, 0.05-1Mpa is the two major items. Components connected without pipes are called two-piece components.