Pneumatic duplex is the air regulating valve and filter, some brands of solenoid valves and cylinders can be used without oil (lubrication through grease), so no injector is needed, if the air filter and pressure reducing valve are combined together, it is called pneumatic duplex, air source duplex carbon steel is to reduce the structure, save installation space, easy to install and maintain, and easy to centralize management.
The working principle of the triplex nozzle is that the compressed air is first sent to the air filter, and then sent to the pressure reducing valve after purification, and the air pressure is adjusted after decompression to make the air pressure reach the air pressure requirement.
The working principle of air filtration combination triplex is: compressed air is fed into the air filter, regulated by decompression, and then discharged from the exhaust port. It is generally used in the air power system without lubrication.
In addition to the difference in composition, their function, use environment and service life are also very different. In some occasions, there can be no oil mist, but triplex oil can make it possible to lubricate the parts that are not convenient to add lubricating oil, thus greatly improving the service life of the engine.