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Dualmaster Jr.® Two-Stage Hand Pump Here’s two-stage flexibility at a popular price! This pump has an extra-large reservoir (125 cu. in. usable oil) and permits use with large hydraulic rams or in multiple small ram applications. Compact and lightweight, Dual- master Jr. provides maximum flexibility with minimum effort in a portable pump. The 4016 delivers… providing high oil volume (2.6 cu. in. per stroke) for rapid ram approach and return. Then it automatically switches at 300 PSI to the high pressure, low volume stage (.16 cu. in. per stroke) for high force applications. Pump has a large, non-vented reservoir with safety relief valve to pre- vent over-pressurization of the reservoir. Piston stroke is 3/4", maximum handle effort is 130 lbs. at 10,000 PSI. The 4016 is equipped with a 2-way valve for use with single-acting rams. A versatile hydraulic pump…dependable power for automotive, heavy-duty truck, agricultural, and construction maintenance needs. No. 4016 – Pump with a 2-way valve for use with single-acting rams. Delivers 2.6 cu. in. of oil per stroke in low pressure stage. Maximum Pressure: 1st - 300 PSI, 2nd - 10,000 PSI; Volume Per Stroke: 1st - 2.6 cu. in., 2nd - .16 cu. in.; Piston Diameter: 1st - 2", 2nd - 1/2"; Piston Stroke: 3/4"; Reservoir Capacity: 125 cu. in. usuable; Oil Port: 3/8" NPTF.
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