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Location：PRODUCTS >> Water pump series >> Model S, SH single stage double suction centrifugal pump
Model S, SH single stage double suction centrifugal pump
Product Model: S, SH
Flow: 160-18000 m3/s
Head: 12-125 M
Power: 0.18-160kw
Speed: 2900, 1450 r/min
Caliber: phi 50-phi 150
Applicable temperature: 0-80 ℃
Working Temperature: <40 ℃
Applicable Medium: Transport clear water or other liquids with physicochemical properties similar to water
Uses: factories, mines, urban water supply, power stations, farmland irrigation and drainage and various water conservancy projects
Driving mode: electric
Main Material: HT200

Overview of single stage double suction middle opening pump

S type pump is the replacement of Sh type single stage double suction, horizontal middle open centrifugal pump, for the transport of clean water and physical and chemical properties similar to water liquid (liquid high temperature does not exceed 80℃).Suitable for water supply and drainage of factories, mines, cities and power stations, irrigation and drainage of farmland and various water conservancy projects.SM, SF and SY pumps are formed on the basis of s-type pumps by changing the material, sealing, structure and other measures, which are respectively suitable for conveying mud and sand water quality or wear-resisting requirements, corrosion resistance requirements or oil and other media.


Single stage double suction middle opening pump model significance

150S78A

150—Pump inlet diameter is150mm

S - horizontal single stage double suction pump

SM - single stage double suction wear-resisting pump

SF - single stage double suction corrosion resistant pump

SY - single stage double suction pump

78 -- design point head is 78m

A - cutting impeller diameter, Ⅰ said impeller diameter increased


6Sh—6A

6 -- pump inlet diameter 6 "(150mm)

Sh - horizontal single stage double suction pump

6 -- round 1/10 of the specific speed of the pump

A - external diameter cutting code of impeller


Single stage double suction middle opening pump performance range

Flow rate: 160 ~ 18000m3/s

Head: 12 ~ 125m



Single - stage double - suction middle - opening pump structure characteristics


1. The inlet and outlet of the S, SM, SF and SY pumps are all below the pump axis and perpendicular to the axis in a horizontal direction. The pump shell is opened.From the direction of the drive end to the pump, the pump rotates clockwise, or counterclockwise according to the need.

2, S, SM, SF, SY pump main parts: pump body, pump cover, impeller, shaft, double suction seal ring, shaft sleeve, bearing, etc.

3. After static balance check, the impeller is fixed by the shaft sleeve and the shaft sleeve nuts on both sides, and its axial position can be adjusted by the shaft sleeve nuts.The axial force of impeller is balanced by the symmetrical arrangement of blades, while the residual axial force is borne by the shaft end bearing.

4. The pump shaft is supported by two single row radial ball bearings or four radial thrust ball bearings, which are installed in the bearing body at both ends of the pump body and lubricated with butter or thin oil.

5. The water pump is directly driven by an electric motor through an elastic sleeve pin coupling.

6. The shaft seal is a soft packing seal. In order to cool and lubricate the sealing cavity and prevent air from entering the pump, a packing ring is installed between the packing rings.



Single stage double suction center opening pump material

Part name Pump type Pump type Pump type Pump type
S SM SY SF
Pump body HT200 QT500-7 HT200或ZG230-450 ZG1Cr13 or ZG1Cr18Ni9Ti
Pump cover HT200 QT500-7 HT200或ZG230-450 ZG1Cr13 or ZG1Cr18Ni9Ti
Impeller HT200 KmTbCr15Mo3 ZG230-450 ZG1Cr13 or ZG1Cr18Ni9Ti
Shaft 45 45 45 2Cr13
Shaft sleeve HT200 QT500-7 HT200 ZG1Cr13 or ZG1Cr18Ni9Ti
Sealing ring HT200 KmTbCr15Mo3 HT200 ZG1Cr13 or ZG1Cr18Ni9Ti


Single stage double suction middle opening pump structure drawing


1. The suction inlet and discharge outlet of this type of pump are all below the pump axis, and the horizontal direction is in a vertical position with the axis and the pump shell.According to the special order needs of the user, it can also be changed to "clockwise" needle rotation.

2, the main other parts of this pump: pump body, pump cover, impeller, shaft, double suction sealing ring, shaft sleeve, bearing, etc.In addition to the shaft material for quality carbon steel, the rest of the cast iron made.

3, pump body and pump cover constitute the impeller studio, in the inlet and outlet water flange is made with the installation of vacuum gauge and pressure gauge pipe screw hole, the lower part of the inlet and outlet water flange is made with the drainage pipe screw hole.

4. The impeller is fixed by the shaft sleeve and the shaft sleeve nuts on both sides after the static balance check, and its axial position can be adjusted by the shaft sleeve nuts. The axial force of the impeller is balanced by the symmetrical arrangement of the blades, and there may be some remaining axial forces which are borne by the bearing on the coaxial end.

5. The pump shaft is supported by two single row radial ball bearings, which are installed in the bearing body at both ends of the pump body. The bearings are lubricated with butter, and the double suction sealing ring is used to reduce the water leakage back to the suction chamber of the water pump.

6. The water pump is driven directly by the motor through the coupling.

7. The shaft seal is a soft packing seal. In order to cool and lubricate the sealing cavity and prevent air leakage into the pump, there is a water sealing ring between the packing.



S、SH型單級雙吸離心泵01.jpg

No Name No Name
1 Pump body 12 Bushing nut (right)
2 Pump cover 13 Bearing body
3 Pump shaft 14  Retaining bolt
4 Impeller 15 Bearing gland
5 Double suction seal ring 16 Coupling parts
6 Shaft sleeve 17 Round nut
7 Packing set 18 Bearing cover (a)
8 Dip pipe 19 Bushing nut (left)
9 Packing 20 Bearing retainer
10 Packing ring 21 Bearing cover (b)
11 Packing gland 22 End cover


Performance parameters of single stage double suction middle opening pump

Type Q
(m3/h) 		H
(m) 		n
(r/min) 		P(kw) n
(%) 		(NPSH)r(m)
Shaft Motor
100S90 80 90 2950 30.1 37 65 2.5
100S90A 72 75 2950 23 30 64 2.5
150S100 160 100 2950 59.8 75 73 3.5
150S78 160 78 2950 45 55 75.5 3.7
150S78A 144 62 2950 33.4 45 72.6 3.7
150S50 160 50 2950 27.3 37 80.4 3.9
150S50A 144 40 2950 20.0 30 75.5 3.9
150S50B 133 36 2950 18.0 22 72.5 3.9
200S95 280 95 2950 91.4 132 79.2 5.3
200S95A 270 85 2950 83.3 110 75 5.3
200S95B 260 75 2950 73.8 90 72 5.3
200S63 280 63 2950 58.3 75 82.7 5.8
200S63A 270 46 2950 45.1 55 75 5.8
200S42 280 42 2950 38.1 45 84.2 6
200S42A 270 36 2950 33.1 37 80 6
250S65 485 65 1450 109.2 132 78.6 3.1
250S65A 420 48 1450 88.5 90 77.7 3.1
250S39 485 39 1450 61.5 75 83.6 3.2
250S39A 468 30 1450 48.4 55 79 3.2
250S24 485 24 1450 36.9 45 85.8 3.5
250S24A 414 20 1450 27.2 37 83.3 3.5
250S14 485 14 1450 21.5 30 85.8 3.8
250S14A 432 11 1450 15.2 18.5 82.7 3.8
300S90 790 90 1450 243 320 79.6 4.2
300S90A 756 78 1450 216.4 280 74.2 4.2
300S90B 720 67 1450 180 220 73 4.2
300S58 790 58 1450 147.9 200 84.2 4.4
300S58A 720 49 1450 118.0 160 82.5 4.4
300S58B 684 43 1450 100 132 80 4.4
300S32 790 32 1450 79 90 86.8


4.6
300S32A 720 26 1450 60.7 75 84 4.6
300S19 790 19 1450 47.1 55 86.8 5.2
300S19A 720 16 1450 39.2 45 80 5.2
300S12 790 12 1450 30.4 37 84.8 5.5
300S12A 684 10 1450 23.9 30 78.4 5.5
350S125 1260 125 1450 533 680 80.5 5.4
350S125A 1181 112 1450 461 570 78.2 5.4
350S125B 1098 96 1450 373 500 77 5.4
350S75 1260 75 1450 303 360 85.2 5.8
350S75A 1170 65 1450 244.4 280 84.2 5.8
350S75B 1080 55 1450 196.3 220 82.4 5.8
350S44 1260 44 1450 172.5 220 87.5 6.3
350S44A 1116 36 1450 129.5 160 84.5 6.3
350S26 1260 26 1450 102 132 87.5 6.7
350S26A 1116 21 1450 76.9 90 83.4 6.7
350S16 1260 16 1450 64.4 75 85.4 7.1
350S16A 1044 13 1450 47 55 78.3 7.1
400S90 1620 90 1450 473 560 84 6.2
400S90A 1460 73 1450 345 450 84 6.2
400S90B 1300 58 1450 245 315 84 6.2
400S40 1080 40 970 140 185 85 5.1
400S40A 1007 33 970 107 160 84.5 5.1
400S40B 870 26 970 73.3 110 84 5.1
500S98 2020 98 970 678.1 800 79.5 4.1
500S98A 1872 83 970 539 630 78.5 4.1
500S98B 1746 74 970 450.1 560 78.7 4.1
500S59 2020 59 970 388.2 450 83.6 4.5
500S59A 1872 49 970 332.32 400 75.6 4.5
500S59B 1746 40 970 255.8 315 74 4.5
500S35 2020 35 970 218.2 280 83.6 4.8
500S35A 1746 27 970 150.6 220 75.6 4.8
500S22 2020 22 970 143.6 185 74 5.2
500S22A 1746 17 970 100.6 132 88.2 5.2
500S13 2020 13 970 85.7 110 85.2 5.7
600S22 3170 22 970 215.8 250 84.2 7
600S22A 2860 18 970 161.1 185 80.3 7
600S32 3170 32 970 310.4 355 83.4 7
600S32A 2850 26 970 229 280 88 7
600S47 3170 47 970 456 560 87 6.5
600S47A 2920 40 970 361 450 89 6.5
600S75 3170 75 970 736 900 88 6
600S75A 2920 65 970 600.2 710 89 6
600S75B 3170 55 970 477.5 560 88 6
600S100 2950 100 970 1015.6 1250 87 6
600S100A 2710 90 970 875.4 1120 85 6
600S100B 3170 80 970 751.9 900 85 6
800S22 3000 22 730 370.2 450 84 7
800S22 2830 14 585 190.6 250 82 5
800S22A 5500 17 730 254.1 315 89 7
800S22A 4400 11 585 133.3 185 88 5
800S32 4830 32 730 538.5 630 87 74.5
800S32 3870 20 585 272.3 315 89 7
800S32A 5500 26 730 389 450 88 4.5
800S32A 3960 17 585 210.7 250 88 6.5
800S47 5500 47 730 782.2 1000 87 4.2
800S47 4400 30 585 403.9 450 90 6.5
800S47A 5070 40 730 621 710 89 4.2
800S47A 4060 25 585 314.1 355 89 6
800S76 5500 76 730 1293.6 1600 88 4.2
800S76 4400 49 585 674.9 800 88 6
800S76A 5080 65 730 1034 1250 87 6
800S76A 4070 42 585 541 630 86 4.2
800S76B 4680 55 730 824.7 1000 85 6
800S76B 3750 35 585 425.5 500 84 4


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