Parameters Range: 

1. Flow rate: Q=20~540m3/h
2. Total head: H=16~1500m
3. Speed: N=1450rpm/2950rpm
4. S. G.: Γ ≤1.15
5. Medium Temperature: T≤210ºC
6. Pump diameter: 80, 100, 125, 150, 200, 250mm

Application: 

BB4 Feed Water Pump is multi-stage sectional centrifugal pump for medium pressure boiler water supply, also can be used for conveying similar liquid medium; 

Structure: 

1. The pump set mainly consists of bearing housing, inlet and out section, middle section, guide vanes. 
2. The pump inlet is horizontal and outlet is vertical; The balance hose on the inlet is connected back to the water inlet side. 
3. Between bearings structure. The rotary part consists of shaft, impellers and a balance disk. 
4. The gaps between pump inlet section, middle section and outlet section are smeared by molybdenum disulfide compound calcium-based lubricating grease as the sealings. The gaps of rotary part and static part are sealed seal rings, guide vane sleeve and packing. 
5. Standard shaft sealing is packing, can be customized as mechanical seal. 

Main parts: 
1. Suction stage 2. Diffuser 3. Middle stage 4. Discharge stage 5. First stage impeller 6. Impeller 7. Balancing Disc
8. Balance plate 9. Cover 10. Packing 11. Balance sleeve 12. Packing gland 13. Oring 14. Bearing
15. First stage sealing ring 16. Seal ring 17. Diffuser sleeve 18. Shaft 19. Shaft sleeve

Parts feature :

Mech Seal: 
Packing seal or Mechanical seal, if need cooling water. Seal plan: P11, P23, P32, P11+61, P11+53A, P11+53B. 
Mech seal factory is colossus. burgman, John crane..

Oil station: 
If need use oil station, selected according to your technical parameter ..brand is china.

Bearing and balancing device: 
SKF bearing. Pump rotor pump shaft at both ends of the Rolling bearing support, dilute oil lubrication, water cooling. The axial thrust of the rotor is balanced
By the balance disc, and the equilibrium return water is returned to the suction section of the pump. 

Transmission: 
Feed Water Pump through the elastic coupling (or diaphragm coupling) and drive (motor, turbine, diesel engine etc. ) connected, Clockwise rotation from
The drive end to the pump. 

Motor: 
China brand motor...ABB. Simens, Weg Or others brand..


GA Drawing sample (BB4-850-55*8)

Material: 
We will select material according to your technical sheet ( S-5,S-6,C-6,A-8...)


More Products picture: 



WHY CHOSE FOR US? 

1.   According customer technical parameter, we will select suitable model , provide all technical document : GA drawing , C.S drawing .
curve . data sheet .2 years spare parts list .
2.   OEM services according to clients' engineering drawings, samples. Products can be marked and labelled with clients' nameplates,
part numbers and other labels.
3.   After-sales services provided, including pump installation, operation and maintenance instructions, centrifugal pumps repair and replacement.
4. We can provide ISO9001 ,ISO14001,BV ,CE certificate ...
5. Pump pass through TUV testing .
5. 18 MONTHS Warranty 

Certificate we have 





For more details (BB4), pls contact with us! 
If need Double casing BB5 pump more details
pls visit our show room: Https: //sylcpump. En. Made-in-China. com/ For more details...