NPS type series single stage double suction split case pumps
- Name: NPS type series single stage double suction split case pumps
- Number: nep-003
- Sequence: 2012-07-1
- Manufacturer: Hunan Neptune Pump Co., Ltd
- Origin: China
Brief Introduction
NPS type series single stage double suction split case pumps are applicable to water supply and drainage in industries and cities, irrigation works and air conditioning system, metallurgical and mining industries, petrochemical and chemical industries, papermaking, light industry, thermal power plants and water supply for fire fighting, etc., used to transfer liquids with temperature from -20℃ to 80℃ and PH value from 5 to 9. The working pressure (inlet pressure plus pumping pressure) of the pump made of normal materials is 1.6Mpa. The highest working pressure reaches to 2.5 Mpa by means of change of materials.
Pump symbol instruction
例：NPS/YS300-550A-1
New type of single stage double suction horizontal split
case pump
300-Inlet dia. of pump
550-Nominal dia. of impeller
A-Stretch code of performance extension of pump(imp. cutted)(J stand for lower
speed)
1-The rotation is anticlockwise(the standard model is unmarked)
Performance Range
inlet dia：Φ150~Φ1400mm，
capacity： 100~25000m3/h，
head： 6~200m。
Design and manufacture conforms to
the standards for 《Technical specifications for centrifugal pumps—Class I》
and GB/T3215-2007《Centrifugal Pumps for Petroleum, Heavy Duty Chemical, and
Gas Industry Services》.
NPS type series single stage double suction split case pumps
Hydraulic Components should have flow field analysis,
High efficiency of pump, strong cavitation performance.
Finite element analysis of structural strength,
safety and reliability.
Stable operation of the pump unit base on low center of gravity.
The matched driven is widely range, complete set with motor, diesel and
turbine.
High automation, attached to auto-start equipments at customers’
Novel design of bearing housing:
Temperature measuring and automatically oil supply function (if dilute oil
lubricated at the request of customers).
As for the bearing housing, two ways, i.e. dilute oil lubrication and grease
lubrication are available for customers.
Many methods of pump shaft seal are available for
customers:
Packing seal
Mechanical seal
6.Structure Drawing
Structure example drawing““““““““““““““`
1. Bearing housing parts
2. Pump cover
3. Impeller seal ring
4. Impeller
5. Packing (mechanical seal) shaft sleeve
6. Packing(mechanical seal)gland
7. Shaft
8. Coupling
9. Pump casing
Parameter:
