2", 2.5", 3" NPT Flange Sizes
Max Capacity
271 (1,026) GPM (L/min)
Max Pressure
Differential: 125PSI (8.6 bar), Working Pressure: 200PSI (13.8 bar)
Max Viscosity
20,000 SSU (4,250 cSt)
Temperature Range
300°F/ 149°C
  • Features
  • Specs
  • Options
  • O-ring design delivers maximum sealing capability and is available with optional seal materials.
  • Corrosion resistant bypass valve made of nickel plated cast iron.
  • Available with a standard bypass valve or an optional air operated valve (AOV) for high and low flow control.
  • Additionally, the AOV relieves the pressure in the lines for easier handling of the hose nozzle.
  • Reliable mechanical seal design with optional seal materials. Heavy duty ball bearings provide greater durability and strength.
  • Hollow rotor helps reduce weight.
  • Available with a T-style strainer that keeps your pumping system free from damage caused by welding slag and foreign materials left in the piping or tank.
  • Conveniently located drain plug allows you to empty the pump quickly when necessary.
  • Positive displacement sliding vane design delivers higher pumping efficiency and a lower noise level.
  • The self adjusting vanes extend the life of the pump by compensating for wear.
  • Installation is simple since the PT-Series pumps are dimensionally interchangeable with the competition.
  • Viton®1 elastomers ensure compatibility with a wider range of fluids such as biodiesel and ethanol blends.
Part Standard Material Available Options
Case Cast iron ASTM A48  
Head Cast iron ASTM A48  
Flanges Cast iron ASTM A48  
Rotor Ductile iron ASTM A536  
Bearing cap Steel Bearing cover / spacer with hydraulic motor adapter (cast aluminum) and coupling (steel)
Bearings Ball (single row), grease lubricated to 300°F (149°C) Max.  
Vanes Full size with 316 stainless steel wear plate to 240°F (115°C); 20,000 SSU (4,250 cP) max.  
Bypass valve Cast iron ASTM A48 electroless nickel plated  
Bypass/AOV cap Cast iron ASTM A48  
Bypass valve cover Cast iron ASTM A48  
Bypass valve spring Plated steel  
Bypass valve spring ranges 35–125 psi (2.4–8.6 bar)  
Seal seat Cast iron  
Seal metal parts Steel  
Shaft Double end keyed shaft, high strength steel  
O-rings Viton®* to 300°F (149°C) Buna-N to 240°F (115°C)
Gaskets Composition to 500°F (260°C)  
Vane drivers Case hardened steel  
Gage ports 1/4 in. NPT  

*Viton® is a registered trademark of the DuPont company.

Performance Data

Model PT20 PT25 PT30
RPM 520 640 520 640 520 640
GPM (L/min) 58 (220) 72 (273) 98 (371) 120 (454) 211 (799) 263 (995)
HP (kW) 2.5 (1.9) 3.0 (2.2) 3.8 (2.8) 5.0 (3.7) 7.8 (5.8) 9.5 (7.1)

*Capacities and horsepower are based on a 100 SSU (22 cP) fluid at 50 psi (3.4 bar) delivered pressure.
Refer to performance curves in the PT-Series sales catalog or the installation, operation and maintenance (IOM) manual for flow rates at other pressures.

Model PT20: The model PT20 is a 2 inch petroleum pump and is ideal for “lube oil” deliveries that require low flow rates. Applications include deliveries to service centers such as auto dealerships and quick lube companies.

Model PT25: The model PT25 is a 2.5 inch petroleum pump and is suited for delivery trucks that transport gasoline, diesel, fuel oil, and other petroleum products. The flow rates are perfect for home, farm, and fleet fueling applications.

Model PT30: The model PT30 is a 3 inch petroleum pump and is ideal for bulk delivery applications such as large transport tanks. The PT30 is designed to quickly load and unload large volumes. Bulk deliveries include aviation fuels, gasoline, diesel, ethanol, biodiesel, and many more.