The flow direction of the liquid is controlled by check valves and directional control valves. As the driving piston reciprocates, the inlet and outlet valves alternately open and close, enabling continuous pressurization. When the output pressure balances with the driving pressure, the pump automatically stops; it restarts when the pressure drops or the driving pressure increases.
SWB-160D series pump is a single drive head double acting gas-liquid booster pump, its characteristic is the same as 160s series pump, but compared with the same specification pump, the pulse is small and its flow. The quantity is 50% higher than that of 160S single-acting pump.