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Centrifugal Pump 250s14

Basic Info

Model No.:  mw 250S14

Product Description

Model NO.: mw 250S14 Working Pressure: Low Pressure Pump Position of Pump Shaft: Horizontal Pump Impeller: Closed Specification: SGS HS Code: 8413709990 Impeller Number: Single-Stage Pump Influent Type of Impeller: Double-Suction Pump Pump Casing Combined: Horizontal Split Pumps Trademark: M&W pump Origin: Changsha, Hunan, China Centrifugal Pump 250S14
S (SM, SF, SL) pump is a new generation product with advanced performance, stable operation, safety and reliability.
This pump is designed according to National standard with high serialization, standardization and universalization. It adopts new materials and structure in the design, so it can transfer many kinds of mediums.
S type pump is for the transfer of clear water or other liquids with physical and chemical property similar to water. SM type pump is for the transfer of medium with much sediment. SF type pump is for the transfer of corrosive medium. SY type pump is for the transfer of oil. S (SM, SF, SL, SY) series of pumps can be applied to Water Supply and drainage for factories, mines, cities and power stations, farmland irrigation and drainage as well as water conservancy projects. The transfer medium temperature is between -20 degree to 80 degree.
Performance Range: Capacity Q: 50~15000m3/h
Head H: 8.6~140m
All pumps of this series can run with speed decrease and different parameters and structure can be designed according to customers' requirements.
Structure: S (SM, SF, SY) type pump is installed horizontally with inlet and outlet line under the pump axial centerline. It is perpendicular to pump axial line. It only needs to remove the pump cover and take out rotor part without dismantling the inlet and outlet pipelines during the overhaul. The pump mainly consists of pump body, pump cover, impeller, sealing ring, shaft sleeve and bearing. The pump body and pump cover constitute impeller working chamber. The impeller axial force is balanced by impeller symmetrical layout.
Bearing: Rolling bearings with grease lubrication at both ends of the pump support the rotor part. Lubrication oil will be adopted if the inlet diameter is more than 700mm.
Shaft seal: 1. Soft packing seal; 2. Mechanical seal (diameter below 800mm).
SL means vertical installation. The suction inlet and discharge outlet are both horizontal. The split surface of pump body and pump cover is perpendicularly separated from axial centerline.
The rotation direction is clockwise viewed from the end of motor (The rotation direction can be designed to be anti clockwise as per customers' requirements).
Materials of flow passage components: Cast iron for S type pump; Anti friction cast iron, cast steel and stainless steel for SM and SY type pump; NiCr cast iron and stainless steel for SF type pump. Different materials can be applied as per customers' requirements.
Model instruction: Eg. 500S (SM, SF, SL, SY) 35A
500-Pump inlet diameter (mm)
S-single stage double suction centrifugal clear Water Pump
SM-Anti friction Single Stage Double Suction centrifugal pump
SF-Anti corrosion single stage double suction centrifugal pump
SY-Oil type single stage double suction centrifugal pump
SL-Vertical single stage double suction centrifugal
35-Head at the design point (m)
A-The first cut of impeller

Parameters

Model
Capacity
Q
Head
H
Speed
n
Motor Eff.
η
NPSH Impeller Diameter Diameter WT.
kg

 

 

 

 
Power Model
 

 

 
Inlet Outlet
 

 
m3/h m r/min kw
 
% m
 
mm
 
250S95A 432.0
540.0
720.0
86.0
85.0
76.0
1480 200.0 Y315L2_4 78
81
82
6.3 505 250 200 900
250S95B 432.0
540.0
720.0
77.0
74.0
67.0
1480 160.0 Y315L1_4 75
80
81
6.3 480 250 200 900
250S65 360.0
485.0
612.0
70.0
65.0
56.0
1480 132.0 Y315M_4 75
79
72
3.8 450 250 200 710
250S65A 338.0
462.0
535.0
60.0
53.0
49.0
1480 110.0 Y315S_4 74
77
75
3.8 410 250 200 710
250S39 360.0
485.0
612.0
42.5
39.0
32.5
1480 75.0 Y280S_4 76
83
79
2.88 367 250 200 620
250S39A 324.0
468.0
576.0
35.5
30.5
25.0
1480 55.0 Y250M_4 74
79
77
3.0 338 250 200 620
250S24 360.0
485.0
576.0
27.0
24.0
19.0
1480 55.0 Y250M_4 80
86
82
6.7 285 250 200 580
250S24A 342.0
414.0
482.0
22.2
20.3
17.4
1480 30.0 Y200L_4 80
83
80
6.7 265 250 200 580
250S14 360.0
485.0
576.0
17.5
14.0
11.0
1480 30.0 Y200L_4 80
85.8
78
3.39 245 250 200 460
250S14A 320.0
430.0
504.0
13.7
11.0
8.6
1480 22.0 Y180L_4 78
82
75
3.3 224 250 200 460

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