Samson Pumpmaster 4, 5:1 Ratio Universal Stub Pump

The PumpMaster 4 5:1 pump from Samson is a double acting air operated medium pressure utility pump for dispensing lubricants in medium to large size installations that include multiple outlets with simultaneous operations. Built for durability, the PumpMaster 4 is a time proven and reliable air motor that withstands the most adverse working conditions. A height-adjustable 2 in. NPTM bung adaptor for drum and tank bung mounting is included. The Pumpmaster 4 also features a built in pressure relief port for an optional pressure relief valve (not included).

Features

• Time proven and reliable air motor withstands the most adverse working conditions
• Efficient air exhaust prevents icing, which can stall pump operation
• Double acting pump provides even and smooth fluid flow
• Dual packing seals provide trouble-free operation
• Built-in port for connecting a pressure relief valve

Specifications

• Pressure ratio: 5:1
• Continuous Duty Flow Rate: 2.7 gpm (10 l/min)
• Maximum Free Flow Rate: 6.6 gpm (25 l/min)
• Air Pressure Operating Range: 20-140 psi (1.5-10 bar)
• Maximum Outlet Pressure: 700 psi (50 bar)
• Air Motor Effective Diameter: 2 1/2 in. (60 mm)
• Air Motor Stroke: 4 in. (100 mm)
• Air Consumption: 14 scfm (400 NL/min)
• Air Inlet: 3/8 in. NPTF
• Fluid Inlet: 1 in. NPTF
• Fluid Outlet: 3/4 in. NPTF
• Wetted Materials: Aluminum, Steel, NBR, PTFE, Polyurethane
• Noise Level: 80 dB
• Application: Stub pump, 16 gal drum pump, 55 gal drum, 257/500 tank, 60 in. tank
• Simultaneous Dispense Points: 1-2
• Max. Line Length: 500 ft. (150 m)
• Pump Description: Standard Duty Medium Pressure

Applications

• Synthetic and mineral based oil
• Hydraulic oil
• Gear lube
• Transmission fluid

Documents

Specification Sheet (PDF Download)