These Low-Pressure Hydraulic Hand Pumps are durable, portable, highly efficient, and easy to use. Each model in the series features an all-steel construction, a chrome plated plunger, and a wiper system for long-lasting performance. These pumps are constructed to power a wide range of single acting cylinders and tools in space restricted areas. The range includes the P51 that can be operated in the horizontal orientation only, and others also capable of operating in the vertical orientations: P18 with the pump head facing down, P25, P50 with the pump head facing up. Each is protected by external load-release valves and internal overload pressure-relief valves. With a choice of oil capacities up to 200 in3 (3,277 cm3), and operating pressures of 2,500 psi (175 bar) - 5,000 psi (350 bar) you will find an Enerpac Low Pressure Hydraulic Hand Pump to suit your needs.