API 610 BB2 Between-Bearing Process Pump
Heavy-Duty Radially Split Double-Suction Centrifugal Pump
API 610 BB2 between-bearing process pump with radially split casing, designed for heavy-duty petrochemical and refining applications requiring high reliability and long service life.
Product Specifications
| Flow Rate | 10 - 2000 m³/h |
|---|---|
| Head | 20 - 350 m |
| Power | 15 - 800 kW |
| Speed | 1450 / 2900 rpm |
| Casing Material | Carbon Steel / 316SS / Duplex |
| Impeller Material | 316SS / Duplex / Alloy 20 |
| Max Temperature | 400 °C |
| Max Pressure | 4.2 MPa |
| Seal Type | Mechanical Seal / API Flush Plans |
| Standard | API 610 11th / ISO 13709 |
Product Description
The API 610 BB2 is a horizontally mounted, between-bearing, radially split, single-stage double-suction centrifugal pump engineered to meet the stringent requirements of API Standard 610 (ISO 13709) for petroleum, petrochemical, and natural gas industries. The BB2 configuration features a radially split casing with double-suction impeller, providing excellent hydraulic stability and low NPSH requirements. The between-bearing design supports the rotor at both ends, minimizing shaft deflection and extending seal and bearing life under high-pressure conditions.
Applications
- Petrochemical plants
- Oil & gas refining
- Crude oil pipelines
- Power generation
- High-pressure water injection
- Hydrocarbon processing
Quality Assurance
All pumps are manufactured under ISO 9001 quality management system. Each pump undergoes rigorous testing including hydrostatic pressure test, performance test, NDT inspection, and dynamic balance verification before shipment. We provide comprehensive documentation including test reports, material certificates, and operation manuals.
Why Choose Our API 610 Process Pumps
Between-Bearing Rigid Rotor
Shaft supported at both ends with heavy-duty bearing housings, minimizing shaft deflection at seal face to ≤0.05 mm per API 610. Extends mechanical seal life in high-pressure hydrocarbon service.
Double Volute Radial Force Balance
Double volute casing design balances radial hydraulic forces across the entire operating range, reducing shaft bending and bearing loads for stable operation from minimum flow to 120% of BEP.
Centerline Mounting for Thermal Growth
Centerline-supported casing accommodates radial thermal expansion at temperatures up to 450°C, maintaining shaft alignment and preventing pipe strain during startup and shutdown cycles.
High-Pressure Capability
Rated for discharge pressures up to 50 bar with cast steel or duplex stainless casing, suitable for crude oil pipeline boosting, water injection, and high-pressure process circulation in refineries.
Key Features
Frequently Asked Questions
What is the difference between BB1 and BB2?
What seal flush plans are available?
Can this pump handle high-temperature hydrocarbons?
Selection Guide
✅ When to Choose This Pump
- Refinery and petrochemical process service
- High-temperature (above 150C) hydrocarbon pumping
- Critical service requiring API 610 compliance
- High-pressure injection and transfer duties
⚠️ When NOT to Choose
- Low-pressure water utility service (over-specified)
- Strong acids requiring fluoroplastic lining
- Solids-laden slurries (requires slurry pump)
- Below-grade sump applications (use vertical sump)
💡 Common Selection Mistakes
- Ignoring NPSH calculation for hot hydrocarbons
- Using single seal for toxic/flammable service
- Not specifying centerline mounting for >150C
- Under-sizing motor for specific gravity >1.0
Still unsure? Use our Pump Selection Center → or talk to our engineers →
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