1/4"Pilot-operated Hydro-Pneumatic Pressure Switch: It can be used as the main control switch for pneumatic-hydraulic components， such as pneumatic-hydraulic pumps and other hydraulic elements， to achieve functions like controlling the oil pressure of the hydraulic system. When the system oil pressure reaches the set upper limit, the Hydro-Pneumatic Pressure Switch cuts off； when the system oil pressure reaches the set lower limit, the Hydro-Pneumatic Pressure Switch connects to the air source.
