ZUMA GAS PUMP - 15 INCH A hydraulic gas pump is a type of pump that uses gas as the power source to drive a hydraulic system. It consists of a gas engine, a hydraulic pump, a reservoir, a relief valve, and a directional control valve. The gas engine converts the chemical energy of the fuel into mechanical energy, which is then transferred to the hydraulic pump. Specification: Specially design for wooden fittings, Different forces for the same dimensions, High Durability, Long life, Oil incorporated for cushioning & seal lubrication different fixing end-connection. Application: For easy opening of all type of cabinet doors.