Tuthill C Series Lubrication Pump

Tuthill C Series cast iron pumps employ the internal gear pumping principle. There are only two moving parts. 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.

Tuthill C Series Pump Specifications

• Pressures to 300 psi (20.7 bar)
• Temperatures to 475°F (246°C)
• Viscosities from 32 SSU to 25000 SSU (1 to 5394 cst)
• For speeds above 1800 RPM and/or viscosities above 25000 SSU consult factory

Tuthill C Series Pumps

• Internal gear pump design
• Flexible mounting, sealing and driving options
• Available with Tuthill’s Reversing Feature
• Flow rates to 84 usgpm (19m3/hr)
• Pressures to 300 psi (20.7 bar)
• Standard with O-ring case seals
• Cast iron construction

Stripped Pumps

• Internal gear pump design
• Partial pump assemblies built directly into OEM equipment
• Available with Tuthill’s Reversing Feature
• Flow rates to 84 usgpm (19m3/hr)
• Pressures to 150 psi (10.3 bar)

Stripped Pumps Applications Include:

• Lubrication
• Fluid Transfer
• Hydraulics
• High Temp Applications