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).

When using this product in an outdoor application, consider purchasing pressure relief valve RON609007 for use in this system.

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)