Products · C Pumps
Centrifugal pumps for fluid-transfer duty.
Explore the CP range, from compact process duties to high-capacity oilfield transfer applications.

Application-led selection
The hydraulic duty comes first.
OPI C Pumps are configured around flow, head, fluid properties, driver, sealing arrangement and service environment.
- Capacity up to 7,500 GPM across the range
- Mechanical seals or packing available for every CP model
- Multiple inlet and outlet sizes
- Material and coating options for corrosive service
CP model range
Compare the published configurations.
Ten dimensional model codes with hydraulic and motor configurations. The CP code identifies inlet × outlet × impeller diameter in inches. Values below are range-selection information, not a guarantee of a combined operating point.
| Model | In / out (in) | Capacity (GPM) | Head (m) | Motor (kW) | Speed (rpm) |
|---|---|---|---|---|---|
| CP-14×12×22 | 14 / 12 | 3,000–7,500 | 45–82 | 300 | 1,000 / 1,400 |
| CP-12×10×23 | 12 / 10 | 5,600 | 90 | 223 | 1,400 |
| CP-10×8×14 | 10 / 8 | 1,145–1,320 | 28–33 | 75 / 90 | 1,450 / 1,750 |
| CP-8×6×14 | 8 / 6 | 1,058–1,145 | 28–33 | 55 / 75 | 1,450 / 1,750 |
| CP-8×6×11 | 8 / 6 | 969–1,058 | 24–28 | 37 / 45 | 1,450 / 1,750 |
| CP-6×5×14 | 6 / 5 | 880–969 | 24–28 | 30 / 37 | 1,450 / 1,750 |
| CP-6×5×11 | 6 / 5 | 528–880 | 24–28 | 30 / 37 | 1,450 / 1,750 |
| CP-5×4×14 | 5 / 4 | 335–528 | 22–28 | 22 / 30 | 1,450 / 1,750 |
| CP-4×3×13 | 4 / 3 | 264–335 | 22–28 | 11 / 15 | 1,450 / 1,750 |
| CP-3×2×13 | 3 / 2 | 220–264 | 22–28 | 7.5 / 11 | 1,450 / 1,750 |
Flow, head, power and speed depend on the selected configuration and are not independent or simultaneous maximum ratings. Ask OPI to confirm the exact hydraulic curve, motor and sealing arrangement for your application.
Discuss a model
Start with your required flow and head.
Tell us the pumped fluid, temperature, solids or corrosion conditions, available driver and installation requirements.
For model-specific curves, drawings and specification sheets, contact OPI sales.
Technical document
C-Pump Specification Sheet
OPI-CP-DS-001 · Revision H