- Name: NPKS Type Double-stage Single-suction Centrifugal Pump
- Number: nep-004
- Sequence: 2013-03-16
- Manufacturer: Hunan Neptune Pump Co., Ltd
- Origin: China
Overview
NPKS type double-stage single-suction centrifugal pump is used deliver clean water or other liquid whose physicochemical property is similar to water within temperature range of -20℃～80℃. It is applicable to municipal drainage, irrigation works, HVAC system, metallurgy and mining as well as petrochemical and chemical, papermaking, light industry and power generation, etc.
Performance range
Speed: 2980rpm, 1480rpm and 980rpm
Inlet diameter: 100~500 (mm)
Flow: 50~3000 (m3/h)
Head: 110~370 (m)
Model description
NPKS – double-stage single-suction split centrifugal pump
8 – The quotient obtained by dividing inlet diameter by 25（i.e. inlet diameter is 200mm）
240 – Head at design point
Structure description
The pump is horizontally installed with horizontal suction and horizontal discharge.
The pump is horizontal split type. Rotating parts can be repaired by opening the pump cover without dismantling inlet/outlet pipes.
Shaft seal can adopt packing seal or mechanical seal in accordance with user’s requirement.
Bearings are rolling bearings which adopt grease lubrication; on user’s request, dilute oil lubrication also can be used.
Impeller adopts symmetrical structure arrangement, which can balance most hydraulic axial force; the residual axial force is borne by bearing.
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.
Structure drawings
Structure drawing 1···
- Casing
- Pump cover
- Main shaft
- First-stage impeller
- Secondary impeller
- Seal ring
- Water seal pipe
- Bearing parts
- Packing gland (mechanical seal gland)
- Packing (mechanical seal)
Parameter:
