BNS-2 series Single Stage, End Suction Norm Centrifugal pumps
Size: DN32～500mm (inlet)/ DN20～450mm (outlet)
Speed: 2900rpm;1450rpm;980rpm
Max Capacity: 2-3500m3/h
Max Head: 2～250m
Max Speed:3500rpm (Diameter of impeller will be reduced )
Max Working Temperature: -30～350°C
Working Pressure: Generally it is 1.6Mpa, It can rise to 2.4Mpa
if material is Nodular cast or Cast Steel .
Application Std：ISO 5199 std
Remarks:
Material: 304/316/316L/2205/2507/TA2/HASTELLOY/Monel
We have been OEM for many brands from Europe
We can make pumps with the bearing housing as your own design.
1. Pump casing is made of investment casing, the tolerance for corrosion is higher than 3mm.Twin channel are used for several models.
2. The replacable wearing ring wil be used for liquid of various chemical or solid.
3. Enclosed impeller or semi-open impeller will be used, (Investment moulding)
4. The mounted support can be changed to Centerline design.
5. The big size of seal chamber is suitable for Various type of API 682 Flushing Plan.
6. Heavy duty bearing housing can adopt the grease/oil lubrication. For oil lubrication, there are oil cup and indicator.
7. Heavy duty bearing, SKF ball bearing as std, the Thrust bearing and roller bearing can be used for heavy duty application.
8. The enlarged type of shaft will make sure the L3/D4 ratio is optimatic, the deflection of shaft seal is less than 0.05mm
9. If the temperature of liquid is higher than 150 ℃, the cooling water can be used to cool down the bearing housing.
| item | name | item | name | item | name |
| 1 | pump casing | 7 | bearing cover | 14 | support |
| 2 | impeller nut | 8 | deep groove bearing | 15 | bearing cooling device |
| 3 | impeller | 9 | bearing housing | 16 | oil indicator |
| 4 | casing cover | 10 | vacuum valve | 17 | water slinger |
| 5 | mechanical seal | 11 | shaft | 18 | O-ring |
| 5B | double mechanical seal | 12 | Thrust bearing/roller bearing | 19 | drainage plug |
| 6 | seal cover | 13 | oil seal | 20 | Flange |
