API 610 BB3
Design Specifications:
- Horizontal, axially split multi stage pump
- Double volute, with overflow return channels
- Stiff shaft supported by internal, product lubricated sliding bearings
- Opposed side suction and discharge nozzles in bottom half of the casing
- Dismantling without breaking pipe lines
- Mechanical seal (single, double, tandem)
Applications:
- Crude oil
- Petrochemical products
- Seawater
- Feed water
Advantages:
- Control of all clearances and setting due to inner case design
- Only one external high pressure seal
- High compensation of hydraulic axial thrust
- Small axial thrust bearing
- Lower leakage loss through piston, resulting in higher efficiency
- Dynamically balanced rotating assembly
- Higher critical speed due to the supporting effect of centre stage piston
- Impeller shaft and wear parts remove as complete unit
- Easy to inspect
Exploitation:
- Pipeline pumps
- Injection pumps
Pump Specifications:
- Maximum Head: Up to 2000 m
- Shaft seal type: Gland packing, Mechanical seal
- Maximum discharge pressure: 150 bar
- Maximum drive rating: 3300 KW
- Flow rate: 80 to 3200 m3/h
- Maximum speed of rotation: 3500 1/m
- Temperature: -20 to +200 °C