Tuthill's C Series Lubrication Pumps

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The C Series is part of Tuthill’s Lubetech range that boasts reliability over a wider range of viscosities. These internal gear pumps are precisely machined and assembled with only two moving parts. Equipped with tough parts and available with a host of customisation options, the Tuthill C Series stands out in processing, metering, and transferring duties and meet the exact needs of different industries. Finally, the series is also available with Tuthill’s reversing feature which is an innovation that allows positive reversing action without the use of valves.


Tuthill gear pump C series

Design Advantages

  • Cast iron construction for exceptional life
  • Single-piece steel rotor assembly
  • Consistent flow and high differential pressures
  • Tighter clearances provide for a reliable measure of liquid
  • Standard with O-Ring Case Seals
  • Top Porting

Available Options

All-Pumps can customise pumps according to your requirements and specific applications. Get in touch with us today to find the right pump!

  • Tuthill’s unique reversing feature
  • Driving and sealing options
  • Bushing and bearing options
  • Special pumps for speeds and viscosities beyond specified
  • Mounting options
  • Spare parts

Key Specifications

  • Flows up to 84 GPM
  • Differential Pressures to 150 PSI
  • Temperatures to 375ºF
  • Viscosities 40 SSU to 25,000 SSU


  • Air Compressors & Pumping Equipment
  • Energy & Power
  • Fluid Oils
  • Fluid Transfer
  • Gear Box & Power Transmission
  • Heavy Machinery & Equipment
  • Natural Gas Compressors
  • Oil & Gas
  • Paints & Coating
  • Refrigeration & AC Compressors


Tuthill C Series cast iron pumps employ the internal gear pumping principle. There are only two moving parts. The pumping action is based on a rotor, idler gear, and a cover cast with a crescent-shaped partition. Power applied to the rotor is transmitted to the idler gear with which it meshes. The space between the outside diameter of the idler and the inside diameter of the rotor is sealed by the crescent. As the pump starts, the teeth come out of mesh, increasing the volume. This creates a partial vacuum, drawing the liquid into the pump through the suction port. The liquid fills the spaces between the teeth of the idler and the rotor and is carried past the crescent partition through the pressure side of the pump. When the teeth mesh on the pressure side, the liquid is forced from the spaces and out through the discharge port.

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