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Fully Customized OH Series Overhung API 610 Pumps
The OH Series are overhung centrifugal pumps fully compliant with API 610 11th Edition, including models OH1, OH2, OH3, OH4 and OH5. Featuring compact overhung rotor design, radially split casings and flexible mounting configurations, they deliver high efficiency, easy installation, simplified maintenance and cost-effective performance. Suitable for moderate flow, medium pressure and space‑limited process conditions in oil, gas, petrochemical and general industrial services.
Explore OH Series Pumps
OH (Overhung) series comprises five models: OH1, OH2, OH3, OH4 and OH5.
As single‑stage overhung centrifugal pumps, they are engineered for compact installation, moderate flow, medium pressure and cost‑sensitive continuous‑duty applications.
We optimize hydraulic structures using advanced hydraulic design models to maximize pumping efficiency, and offer full customization services to meet specific project requirements.
OH Series (Overhung) Pump Comparison
API 610 compliant | Compact footprint | Easy installation & maintenance
| Model | Casing Type | Stages | Key Design Features | Performance Range | Advantages | Typical Applications |
|---|---|---|---|---|---|---|
| OH1 | Radially split | Single-stage | Horizontal foot-mounted, flexible coupling, back-pullout design | Flow: 3–2600 m³/h; Head: ≤250 m; Pressure: ≤5.0 MPa; Temp: -80~200℃ | Cost-effective, easy installation, simplified maintenance | General process transfer, cooling water, utility services |
| OH2 | Radially split | Single-stage | Horizontal centerline-mounted, flexible coupling, high thermal stability | Flow: 5–2600 m³/h; Head: ≤250 m; Pressure: ≤5.0 MPa; Temp: -80~450℃ | High temperature resistance, no thermal misalignment, heavy-duty reliability | Refinery hot oil, high-temperature process, petrochemical feeding |
| OH3 | Radially split | Single-stage | Vertical in-line, separate bearing bracket, flexible coupling | Flow: 3–1100 m³/h; Head: ≤130 m; Pressure: ≤4.0 MPa; Temp: -15~400℃ | Space-saving, vertical installation, simplified piping | In-line boosting, tank transfer, compact skid-mounted systems |
| OH4 | Radially split | Single-stage | Vertical in-line, rigid coupling, high-efficiency drive | Flow: 3–800 m³/h; Head: ≤150 m; Pressure: ≤4.0 MPa; Temp: -20~350℃ | High drive efficiency, compact, minimal maintenance | High-speed small systems, integrated packages, precision process duties |
| OH5 | Radially split | Single-stage | Vertical in-line, close-coupled, motor-integrated, no coupling | Flow: 2–500 m³/h; Head: ≤120 m; Pressure: ≤3.0 MPa; Temp: -10~300℃ | Ultra-compact, lowest footprint, plug-and-play installation | Small-flow utility, auxiliary systems, limited-space packages |
1. The above parameters are for reference only; please contact us for details. Our company reserves the final right of interpretation.
2. All models comply with API 610 standards and can be customized according to specific project requirements.
2. All models comply with API 610 standards and can be customized according to specific project requirements.
How to Select the Right OH Series API 610 Pump?
Selecting the appropriate OH Series API 610 centrifugal pump requires a comprehensive evaluation of operating conditions, installation space, media properties, temperature, pressure and maintenance demands. Key factors include flow rate, head, mounting orientation and environmental constraints.
- Choose OH1 for general‑purpose, cost‑sensitive services with standard temperature and pressure, where easy installation and basic maintenance are priorities.
- Choose OH2 for high‑temperature, heavy‑duty continuous processes requiring centerline support and thermal stability without misalignment.
- Choose OH3 for vertical in‑line installations, space‑limited areas and compact skid‑mounted systems with flexible coupling.
- Choose OH4 for high‑efficiency, high‑speed vertical services with rigid coupling and minimal transmission loss.
- Choose OH5 for ultra‑compact, small‑flow auxiliary systems with close‑coupled, motor‑integrated design.
What are the main advantages of CME OH series Overhung API 610 pumps?
- Compact and robust overhung design for easy installation and maintenance
- Engineered to API 610 11th Edition for reliable process performance
- Centerline-mounted and foot-mounted configurations available
- Excellent hydraulic efficiency with stable operation
- Suitable for general and medium-duty applications in oil & gas, refining and petrochemical industries
- Long service life with low vibration and stable rotor dynamics
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