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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-80) 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 24 (m3/h)
8Power range from 3.0 to 10 (HP) 
8Total head:  up  to 147 (m)

-MOTOR:

8Water lubricated encapsulated motor (rewindable).
8Adopted the NEMA standard.
8Power: 2.2 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

MOTOR

Q(n=2850r/min)

hp

kw

m3/h

0

8.4

9.6

10.8

12

13

14.4

16

17

18

19

20

22

23

24

PUMP

L/min

0

140

160

180

200

220

240

260

280

300

320

340

360

380

400

Dia.

Weight

gpm

0

37

42

48

53

58

63

69

74

79

84

90

95

100

106

(mm)

(kg)

4ST-8008

8

3.0

2.2

H(m)

51

41

39

37

35

33

31

29

27

24

22

20

17

14

12

676

 

4ST-8011

11

4.0

3.0

70

57

54

52

49

47

44

41

38

34

31

28

24

21

18

880

 

4ST-8015

15

5.5

4.0

97

79

76

73

69

66

63

58

54

50

46

41

36

32

27

1149

 

4ST-8020

20

7.5

5.5

125

102

98

94

89

84

79

74

70

65

60

54

48

43

37

1489

 

4ST-8028

28

10

7.5

181

147

142

136

129

123

118

108

101

93

86

77

67

60

50

2071