New Products
60HZ Pump
Submersible Borehole Pump
Submersible Sewage Pump
Stainless Steel (multistage) P...
Surface Pump
Garden Pump
Swimming Pool Pump & Accessori...
Macerator Pump
Gas (Diesel) Engine Pump
Other Pumps
Pump Accessories
Water Filter
Hengsheng Industrial & Trading Co., Ltd.
Umex (Ningbo) Imp. & Exp. Co., Ltd.
Factory: Building 1, United Industrial Park, Shangfan, Hengxi, Yinzhou, Ningbo, China
Office: RM1610/1619, Huahong Fifth Avenue, No.719 Zhongxing Road, Ningbo, China
Tel: 0086-0574-87262189
        0086-0574-87328803
Fax: 0086-0574-88107190 87328810
E-mail:sales03@unipompe.com
Website: www.unipompe.com
    Home > Products > Garden pump > Submersible Pump

4'' (4ST-25) SUBMERSIBLE PUMP 

4" encapsulated 3-wire capacitor single phase motor 
Water lubricated radial and thrust bearings
Removable “Water bloc” lead connector
Plastic Floating Impeller offers superior performance and exceptional resistance to abrasives,  
due to the floating stack design.

-Pump:

8Qmax: up to 6.0 (m3/h)
8Power range from 0.5 to 10 (HP) 
8Total head:  up  to 486 (m)

-MOTOR:

8Water lubricated encapsulated motor (rewindable).
8Adopted the NEMA standard.
8Power: 0.37 to 7.5 KW (1 phase)
8Insulation class : F
8Protection grade: IP 68
8Maximum diameter : Φ95mm
8Highest temperature of liquid : 35 ℃

-Application:

8For water supply from wells or reservoirs.
8For domestic use,for civil and industrial applications.
8For sprimking and flow irrigation plants.

-Operating conditions:

8Water temperature up to 35 Cent.Degree.
8Maximum sand content: 0.25%
8Minimum international diameter of well: 4''.
8Maximum immersion depth: 80m.

-Materials:

8Pump casing: AISI 304 stainless steel
8Impeller: plastic (PPO)
8Diffuser: plastic (PC)
8Inlet and Outlet:  brass/stainless steel/cast iron.
8Shaft AISI 304 stainless steel.
8Motor casing: AISI 304 stainless steel.
8Mechanical seal: tungsten carbides.

                                                  Performance Curves

 

WARRANTY: 1 YEAR (according to our general sales conditions)

PUMP MODEL

STAGE

 MOTPR

 Q(n=2850r/min)

hp

kw

m3/h

0

2.1

2.4

2.7

3.0

3.6

4.2

4.8

5.4

6.0

PUMP

L/min

0

35

40

45

50

60

70

80

90

100

Dia.

Weight

gpm

0

9

11

12

13

16

18

21

24

26

(mm)

(kg)

4ST-2504

4

0.5

0.37

H(m)

26

23

22

22

21

19

17

14

11

7

247

 

4ST-2506

6

0.75

0.55

38

36

35

33

32

30

26

22

18

12

296

 

4ST-2508

8

1.0

0.75

51

47

46

44

43

39

35

30

24

18

345

 

4ST-2512

12

1.5

1.1

77

72

71

69

68

63

57

49

41

31

433

 

4ST-2516

16

2.0

1.5

102

98

96

94

92

86

77

68

57

46

542

 

4ST-2524

24

3.0

2.2

151

142

139

136

132

122

111

97

80

62

777

 

4ST-2532

32

4.0

3.0

203

188

185

180

175

162

146

127

105

80

965

 

4ST-2544

44

5.5

4.0

278

265

260

254

247

230

210

187

159

127

1296

 

4ST-2560

60

7.5

5.5

385

360

355

345

340

315

285

245

205

155

1680

 

4ST-2581

81

10

7.5

250

486

479

466

459

425

385

331

277

209

2170