API 610 VS6 Vertical Canned Pump
Vertically Suspended Double-Casing Dry-Pit Pump
API 610 VS6 vertically suspended, double-casing, dry-pit pump with pressurized suction can, ideal for low-NPSH and volatile hydrocarbon services.
Product Specifications
| Flow Rate | 5 - 600 m³/h |
|---|---|
| Head | 50 - 800 m |
| Power | 15 - 1000 kW |
| Speed | 1450 / 2900 rpm |
| Casing Material | Carbon Steel / 316SS / Duplex |
| Impeller Material | 316SS / Duplex / Alloy |
| Max Temperature | 300 °C |
| Max Pressure | 10 MPa |
| Seal Type | Mechanical Seal / API Flush Plans |
| Standard | API 610 11th / ISO 13709 |
Product Description
The API 610 VS6 is a vertically suspended, double-casing (canned), diffuser-type pump designed for dry-pit installation. The pressurized suction can provides the necessary NPSH for pumping volatile liquids at or near their vapor pressure. The VS6 features an outer pressure-containing can with an inner diffuser-type pump bowl assembly. This design is ideal for boiler feed water, condensate, and light hydrocarbon services where NPSH is critical.
Applications
- Boiler feed water
- Condensate extraction
- LPG / NGL transfer
- Ammonia services
- Volatile hydrocarbon pumping
- Power generation
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
API 610 VS6 Canned Motor Design
Vertically suspended, single-stage canned motor pump per API 610 VS6 type, with hermetically sealed motor for zero-emission hazardous fluid service in refineries and chemical plants.
100% Leak-Free
No mechanical seal — the motor rotor is immersed in the pumped fluid, contained within a hermetically sealed can. Eliminates seal maintenance and emissions entirely.
Compact Vertical Footprint
Integrated motor and pump design with no external coupling, reducing overall height and installation space compared to conventional vertical sump pumps with above-ground motors.
High Reliability
Fewer moving parts (no seal, no coupling), with sleeve bearings lubricated by process fluid. MTBF typically exceeds 8 years in properly applied installations.
Key Features
Frequently Asked Questions
What is the advantage of a canned pump?
Can it be used for LPG service?
What is the maximum head?
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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