Available Models

531 211 PM45 25:1 400 lb drum, flange mounted

Fluids Handled

  • Grease up to NLGI-2
  • High Viscosity Oil

Markets Served

  • Lube trucks
  • Mining and construction
  • Railroad and mass transit
  • Industrial
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    Item#: 531211

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Overview:

Heavy-Duty Pressure Transfer Pump

Moderate pressure, high delivery, double acting, heavy-duty pumps for transfer of grease up to NLGI-2. Recommended to use with low consistency grease in centralized grease systems that do not require a high pressure outlet, and in large distribution systems of high viscosity oils.

Pump are available with tube length to fit commercial 400 lb drums. They can be flange cover mounted to 400 lb open drums.

4 1/2” air motor
Mechanically actuated air valve with only three moving parts and no springs. Large effective area for maximum pumping power

Efficient air exhaust
No ice forming, no stalling pump operation

Long life packings
Dual packing seals provides longer trouble free operation

High quality materials
Low friction polyurethane seals, hard chromed steel fluid plunger and steel valves for fewer repairs

Cast iron pump body
To stand higher working pressures

Double acting pump
Double ball valve design provides even and smooth fluid flow

Product Specifications:

Pump Pressure Ratio 25:1
Continuous Duty Flow Rate 13.5 lb/min (6 kg/min)
Maximum Free Flow Rate 35.3 lb/min (16 kg/min)
Air Pressure Operating Range 29-200 psi (2-14 bar)
Maximum Outlet Pressure 5,000 psi (350 bar)
Air Motor Effective Diameter 4 1/2" (115 mm)
Air Motor Stroke 4" (100 mm)
Air Consumption 47 scfm (1.340 NL/min)
Air Inlet 1/2" NPTF
Fluid Outlet 1/2" NPTF
Wetted Materials Cast Iron / Steel / Hard chromed steel / UHMWPE / NBR
Noise Level Pump noise level meets OSHA requirements at all recommended operating air pressures

Technical Documents:

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View or download pdf of Catalog Page

View or download pdf of Service Manual SM853820