Tuthill 2C2F-C Cast Iron Gear Pump End 9 GPM 1 in NPT Flange Mount
The Tuthill 2C2F-C is a size 2 cast iron gear pump end from the C Series, moving a nominal 9 GPM through 1 inch NPT inlet and outlet ports. It ships as the pump end alone, without a motor or a drive. With a rotor and an idler gear as the only moving parts, the C Series handles thin lubricating oils and heavy viscous stock alike, and the published viscosity range runs from 40 all the way to 10,000 SSU.
This build is flange mount with a spring loaded lip seal, which sets its pressure envelope: inlet pressure to 25 PSI, maximum differential pressure of 100 PSI and maximum discharge pressure of 100 PSI. There is no internal relief valve on this build, so a positive displacement pump like this one needs an external bypass somewhere in the discharge piping before it is put to work. The C2F build is the flange mounted lip seal version, rated for inlet pressure to 25 PSI and a maximum differential of 100 PSI. Its shaft seal is the 2CF94-7 Viton lip seal, which is the wear item to have on the shelf. Like all C Series pumps it must not be used on plain water, corrosive liquids or abrasive slurries, and it must never be run dry.
Key Features
- Cast iron internal gear construction with only two moving parts
- Nominal capacity of 9 GPM through 1 inch NPT inlet and outlet ports
- Flange mount with a spring loaded lip seal
- Wide viscosity range of 40 to 10,000 SSU covers thin oils through heavy stock
- Straightforward wet end with no internal valve to set or maintain
- Rotors in forged steel with sintered steel idler gears and precision bronze bearings
- Built for clockwise rotation viewed from the shaft end
Applications
- Lubrication circuits on air compressors, gas compressors and gearboxes
- Burner oil and fuel oil transfer and circulation
- Low pressure hydraulic supply and control circuits
- Heat transfer oil, quench oil and process oil circulation
- Original equipment packages built around a bare gear pump end
- Transfer duty on viscous non abrasive industrial fluids
Specifications
- Brand: Tuthill
- Manufacturer Part Number: 2C2F-C
- Part Type: Rotary gear pump end, no motor supplied
- Series: C Series, size 2
- Nominal Capacity: 9 GPM
- Ports: 1 inch NPT inlet and outlet
- Mounting: Flange mount
- Shaft Seal: Spring loaded lip seal
- Rotation: Clockwise
- Housing and Cover: Cast iron ASTM A48
- Rotor: Forged steel
- Idler Gear: Sintered steel
- Bearings: Precision bronze
- Maximum Inlet Pressure: 25 PSI
- Maximum Differential Pressure: 100 PSI
- Maximum Discharge Pressure: 100 PSI
- Relief Valve: None fitted
- Viscosity Range: 40 to 10,000 SSU
- Condition: New
Frequently Asked Questions
Q: Does the pump self prime?
It will prime on its own once the internals are wetted, but the ports should face upward on installation so air can clear. If nothing is discharged after about sixty seconds, stop and find out why rather than letting it run.
Q: Is a motor or a mounting foot included?
No. This is a bare pump end. Mounting feet are listed separately by pump size, and C face adapters are published across the NEMA range from 56C up to 326TC.
Q: What is the difference between the B and the F builds?
The B build uses a mechanical seal and carries the higher pressure ratings, up to 250 PSI inlet and 300 PSI discharge. The F build uses a spring loaded lip seal and is limited to 25 PSI inlet and 100 PSI discharge.
Q: Which shaft seal does this pump take?
Lip seal builds in the size 3 and 4 frames take the 3CF94-7 in Viton, and the size 2 frames take the 2CF94-7. Mechanical seal builds take the 3C1B9 series, with the dash number setting the elastomer.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct pump end.
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