Here's two-stage flexibility at a popular price! These pump have extra-large reservoirs (125 cu. in. usable oil) and permit use with large hydraulic rams or in multiple small ram applications. Compact and lightweight, Dualmaster Jr. provides maximum flexibility with minimum effort in a portable pump. The 4016 and 4017 deliver... providing high oil volume (2.6 cu. in. per stroke) for rapid ram approach and return. Then they automatically switch at 300 PSI to the high pressure, low volume stage (.16 cu. in. per stroke) for high force applications. Both have a large, non-vented reservoir with safety relief valve to prevent 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. The 4017 has a 4-way valve for use with double-acting rams. Two versatile hydraulic pumps... dependable power for automotive, heavy-duty truck, agricultural, and construction maintenance needs.
Pump Number: 4016
Maximum Pressure:
1st Stage: 300 PSI
2nd Stage: 10,000 PSI
Volume Per Stroke:
1st Stage: 2.6 cu. in.
2nd Stage: .16 cu. in.
Piston Stroke: ¾"
Reservoir Capacity: 125 cu. in. usable
Oil Port: 3/8" NPTF
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. Wt., 29 lbs., 13 oz.
