This equipment is driven by compressed air with the air pressure controlled between 0.2–0.3 MPa, and the liquid phase pressure is 2 to 3 times the air pressure. It features a simple structure.
A filter device is installed at the air inlet to prevent solid impurities from entering the liquid cylinder. The liquid phase section is equipped with four one-way valves to realize simultaneous inflow and outflow during reciprocating operation, delivering fast conveying speed and stable pressure.
This equipment only transports liquid phase without gas phase, making it the optimal choice for refrigerant filling.
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