API 610 BB1 Horizontal Split Case Double-Suction Pump
API 610 BB1 Double-Suction Split Case Process Pump
API 610 BB1 horizontal split case double-suction centrifugal pump for large-flow, medium-head process services. Single-stage, between-bearing design with double suction impeller for high efficiency and low NPSH.
Product Specifications
| Flow Rate | 50 - 10,000 m³/h |
|---|---|
| Head | 10 - 300 m |
| Power | 50 - 3,000 kW |
| Speed | 980 / 1,450 / 1,750 rpm |
| Casing Material | Cast Steel / 304/316L Stainless |
| Impeller Material | 316SS / Bronze / Duplex |
| Max Temperature | 210 °C |
| Max Pressure | 5 MPa |
| Seal Type | Mechanical Seal / Packing |
| Standard | API 610 11th Edition / ISO 13709 |
Product Description
The API 610 BB1 Horizontal Split Case Double-Suction Pump is a large-flow, medium-head process pump with axially split casing and double-suction impeller for refinery and petrochemical services. Its double-suction design balances axial thrust and provides excellent NPSH characteristics, delivering flow rates from 50 to 10,000 m³/h at heads to 300 m and temperatures to 210°C. The between-bearing BB1 configuration ensures rotor stability, with cast steel or 304/316L stainless construction. Suitable for large-volume hydrocarbon transfer, cooling water, and pipeline services.
Applications
- Large-volume water circulation in refineries
- Cooling water systems in power plants
- Crude oil intake and transfer
- Fire water pumps in petrochemical plants
- Large-flow process services
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
Double-Suction Impeller Design
Horizontally split casing with double-suction impeller provides balanced axial thrust, lower NPSH requirement, and stable operation at high flow rates up to 4,000 m³/h. Ideal for large-volume water and hydrocarbon transfer.
API 610 11th Edition Compliance
Full compliance with API 610 11th Edition for petroleum and gas industry services, including hydrostatic test at 1.5x design pressure, mechanical running test with vibration limits ≤3.0 mm/s RMS, and complete documentation package.
Easy Maintenance Access
Horizontally split casing allows top removal of rotating assembly without disconnecting suction or discharge piping, reducing mean time to repair (MTTR) by 50% compared to radially split designs.
Heavy-Duty Bearing Housing
Oversized angular contact thrust bearings with L10 life exceeding 25,000 hours at BEP, force-feed lubrication system, and bearing temperature monitoring ports for reliable continuous operation.
Key Features
Frequently Asked Questions
What is the typical flow range?
What is the maximum head?
Can it handle viscous fluids?
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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