API610 BB4 Between Bearings Radially Split Single Casing Multistage Centrifugal Pump

Special designs: 

One-sde bearings; Low flow high head; Forged casing; Auto-balanced.

Casing:

Casings and ring sections in forgings or castings for different duties.

Axial thrust is hydraulically compensated by balancing devices in discharge casing.

Radial force is minimized by advanced impellor and diffuser design combining use of radial roller bearings to guarantee service life more than 50,000 hours. 

Rotor:

First stage impellor single or double suction.

Rotor is further stiffen through large effective interstage bushing and wearing area.

Shaft seal:

Mechanical seal with cooling, sealing and flushing systems;

Packing glands uncooled, sealing be medium handled;

Packing glands cooled, sealing by external liquid.

Bearing:

Spring-load antifriction or tilting pad thrust bearings disconnect balancing disc from counter disc during special working conditions. 

Easy maintenance:

Major easy-worn parts like bearings, shaft seals and axial thrust balancing devices can be replace without disconnecting suction and discharge pipings.

                                                  API610 Centrifugal Pumps

**Some of above types of pumps does not meet all the requirements of API610 standard. 

**API610 standard suggests that, further or differing requirements can be needed for individual applications. The vendor is necessary to identify any variations from API610 standard and provide details for alternative equipment or engineering solutions.