Dm

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Dm

Dm deep well pumps are multistage centrifugal pumps operating in a vertical position and are long and thin in shape. Split folding impeller structure can raise water to a high position. Using stainless steel for corrosion resistance, these well pumps are durable and long-lasting.

description1
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Description

Application

Applied to pumping such liquid which is clean, no solid matter or frictional matter, low viscous, noncorrosive, chemically neutral and close to water. Such as tank filling, domestic water supply, water transfer, pressure boosting, irrigation.

 

Motor And Pump

Rewindable oil-filled motor

NEMA dimension standards

Three-phase: 380-415V/50Hz

Single-phase: 220-240V/50Hz

Pumps are designed by casing stressed

Optional equipment with control box

Protection class: IP68

Insulation class: B

 

Operating Limits

Max. fluid temperature: ≤40℃

Max. sand content: 0.25%

Max. immersion: 100m

Minimum well diameter: 2-1/2",3",3-1/2",4" 

 

Features

[1] 100% copper wire with thermal protection.

[2] Cold-rolled silicon steel sheet with high-speed punching.

[3] 304 stainless steel welding shaft.

[5] No leakage with the high quality mechanical seal.

Parameter

Model Instruction

 

Technical Table

Model

Power

Q(m³/h)

0

0.5

1

1.5

2

2.5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

8

17

25

33

42

2.5Dm2-15/12-0.18

0.18

0.25

H(m)

30

27

24

20

15

6

2.5Dm2-20/17-0.25

0.25

0.33

41

38

33

27

20

8

2.5Dm2-28/24-0.37

0.37

0.5

60

55

48

40

28

11

2.5Dm2-38/31-0.55

0.55

0.75

80

72

64

54

38

15

 

Model

Power

Q(m³/h)

0

0.5

1

1.5

2

2.5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

8

17

25

33

42

3Dm2-24/8-0.18

0.18

0.25

H(m)

34

34

32

29

24

16

3Dm2-33/11-0.25

0.25

0.33

47

46

44

40

33

24

3Dm2-45/15-0.37

0.37

0.5

64

62

60

54

45

31

3Dm2-63/21-0.55

0.55

0.75

89

86

84

75

63

43

3Dm2-81/27-0.75

0.75

1

115

112

108

97

81

60

3Dm2-99/33-0.92

0.92

1.25

141

136

132

119

99

76

3Dm2-114/38-1.1

1.1

1.5

162

158

152

137

114

87

3Dm2-138/46-1.5

1.5

2

191

187

184

165

138

102

 

Model

Power

Q(m³/h)

0

1

2

2.5

3

3.5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

17

33

42

50

58

3Dm3-20/8-0.25

0.25

0.33

H(m)

31

30

27

23

20

13

3Dm3-27/11-0.37

0.37

0.5

43

42

36

33

27

15

3Dm3-39/16-0.55

0.55

0.75

63

60

54

48

39

22

3Dm3-52/21-0.75

0.75

1

81

79

70

63

52

33

3Dm3-64/26-0.92

0.92

1.25

102

98

88

78

64

41

3Dm3-76/32-1.1

1.1

1.5

120

116

105

93

76

48

3Dm3-91/37-1.5

1.5

2

146

140

125

111

91

62

 

Model

Power

Q(m³/h)

0

1

2

3

3.5

4

5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

17

33

50

58

67

83

3Dm4-17/6-0.25

0.25

0.33

H(m)

24

24

22

21

119

17

9

3Dm4-25/9-0.37

0.37

0.5

36

36

34

31

28

25

14

3Dm4-33/12-0.55

0.55

0.75

48

48

46

41

37

33

19

3Dm4-44/16-0.75

0.75

1

64

64

61

55

50

44

25

3Dm4-55/21-0.92

0.92

1.25

81

81

76

70

62

55

31

3Dm4-66/24-1.1

1.1

1.5

97

96

92

84

75

66

42

3Dm4-76/29-1.5

1.5

2

113

111

107

98

87

76

46

 

Model

Power

Q(m³/h)

0

0.5

1

1.5

2

2.5

3

3.5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

8

17

25

33

42

50

58

3.5Dm2-33/8-0.25

0.25

0.33

H(m)

46

44

42

39

33

26

18

7

3.5Dm2-45/11-0.37

0.37

0.5

63

61

58

54

45

36

25

10

3.5Dm2-57/14-0.55

0.55

0.75

81

78

74

69

57

44

32

13

3.5Dm2-70/17-0.75

0.75

1

97

94

89

83

70

56

38

16

3.5Dm2-86/21-0.92

0.92

1.25

121

117

111

102

86

69

48

19

3.5Dm2-103/25-1.1

1.1

1.5

144

138

132

123

103

82

57

23

3.5Dm2-119/29-1.3

1.3

1.75

167

163

155

1443

119

96

65

26

3.5Dm2-136/33-1.5

1.5

2

190

185

176

163

136

109

75

30

3.5Dm2-156/38-1.8

1.8

2.5

219

213

203

188

156

126

86

35

 

Model

Power

Q(m³/h)

0

1

2

3

4

5

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

17

33

50

67

83

3.5Dm3-26/6-0.25

0.25

0.33

H(m)

34

32

30

26

20

8

3.5Dm3-34/8-0.37

0.37

0.5

45

43

40

34

27

11

3.5Dm3-47/11-0.55

0.55

0.75

62

59

55

47

36

15

3.5Dm3-60/14-0.75

0.75

1

79

75

70

60

47

19

3.5Dm3-72/17-0.92

0.92

1.25

96

91

85

72

57

23

3.5Dm3-85/20-1.1

1.1

1.5

113

108

100

87

68

28

3.5Dm3-98/23-1.3

1.3

1.75

129

124

115

96

78

32

3.5Dm3-111/26-1.5

1.5

2

146

140

130

111

88

36

3.5Dm3-128/30-1.8

1.8

2.5

169

161

150

128

101

41

 

Model

Power

Q(m³/h)

0

1

2

3

4

5

6

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

8

17

25

33

42

50

3.5Dm4-28/7-0.37

0.37

0.55

H(m)

39

37

35

32

28

20

7

3.5Dm4-34/9-0.55

0.55

0.75

49

47

45

41

34

25

9

3.5Dm4-42/11-0.75

0.75

1

60

57

54

49

42

29

12

3.5Dm4-52/14-0.92

0.92

1.25

75

72

68

61

52

36

15

3.5Dm4-64/17-1.1

1.1

1.5

90

87

83

74

64

44

18

3.5Dm4-72/19-1.3

1.3

1.75

106

100

94

86

72

52

20

3.5Dm4-84/22-1.5

1.5

2

117

113

107

99

84

60

23

3.5Dm4-96/25-1.8

1.8

2.5

134

130

124

114

96

68

26

 

Model

Power

Q(m³/h)

0

1.2

2.4

3.6

4.8

6

7.2

8.4

Single phase
(220-240V/50Hz)

kW

HP

Q(L/min)

0

20

40

60

80

100

120

140

3.5Dm6-17/5-0.37

0.37

0.55

H(m)

26

25

24

22

20

17

15

12

3.5Dm6-24/7-0.55

0.55

0.75

34

33

32

29

27

24

21

17

3.5Dm6-30/9-0.75

0.75

1

46

45

42

38

35

30

27

21

3.5Dm6-37/11-0.92

0.92

1.25

56

54

50

46

42

37

33

25

3.5Dm6-44/13-1.1

1.1

1.5

66

65

61

55

50

44

39

29

3.5Dm6-50/15-1.3

1.3

1.75

78

76

71

65

58

50

45

33

3.5Dm6-57/17-1.5

1.5

2

89

87

81

74

67

57

51

38

3.5Dm6-64/19-1.8

1.8

2.5

96

94

88

82

75

64

57

42

 

Model

Power

Q(m³/h)

0

0.5

1

1.5

2

2.5

3

3.5

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

8.3

17

25

33

42

50

58

4Dm2-46/9-0.37

4D2-46/9-0.37

0.37

0.5

H(m)

63

61

58

53

46

40

31

20

4Dm2-72/13-0.55

4D2-72/13-0.55

0.55

0.75

93

91

88

81

72

63

49

32

4Dm2-86/16-0.75

4D2-86/16-0.75

0.75

1

112

109

105

96

86

75

58

41

4Dm2-104/19-0.92

4D2-104/19-0.92

0.92

1.25

137

133

129

117

104

90

71

46

4Dm2-119/22-1.1

4D2-119/22-1.1

1.1

1.5

157

152

147

135

119

101

84

57

4Dm2-134/25-1.3

4D2-134/25-1.3

1.3

1.75

174

171

163

150

134

113

88

66

4Dm2-159/29-1.5

4D2-159/29-1.5

1.5

2

204

199

191

177

159

137

107

79

4Dm2-182/33-1.8

4D2-182/33-1.8

1.8

2.5

232

228

220

204

182

156

127

82

4Dm2-215/38-2.2

4D2-215/38-2.2

2.2

3

269

265

256

239

215

184

146

96

/

4D2-269/48-3

3

4

339

328

317

300

269

234

194

/

/

4D2-331/59-4

4

5.5

414

405

387

360

331

275

215

/

 

Model

Power

Q(m³/h)

0

1

2

3

4

5

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

17

33

50

67

83

4Dm3-32/7-0.37

4D3-32/7-0.37

0.37

0.5

H(m)

46

44

39

32

21

9

4Dm3-54/11-0.55

4D3-54/11-0.55

0.55

0.75

74

71

65

54

39

21

4Dm3-67/14-0.75

4D3-67/14-0.75

0.75

1

94

90

82

67

48

24

4Dm3-79/15-0.92

4D3-79/15-0.92

0.92

1.25

110

104

95

79

55

26

4Dm3-94/19-1.1

4D3-94/19-1.1

1.1

1.5

130

124

112

94

66

33

4Dm3-104/21-1.3

4D3-104/21-1.3

1.3

1.75

145

138

126

104

74

38

4Dm3-117/23-1.5

4D3-117/23-1.5

1.5

2

161

153

141

117

82

43

4Dm3-138/27-1.8

4D3-138/27-1.8

1.8

2.5

188

181

166

138

98

46

4Dm3-162/31-2.2

4D3-162/31-2.2

2.2

3

214

211

194

162

114

48

/

4D3-198/41-3

3

4

280

269

246

202

140

50

/

4D3-246/51-4

4

5.5

348

333

306

246

174

60

 

Model

Power

Q(m³/h)

0

1

2

3

4

5

6

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

17

33

50

67

83

100

4Dm4-27/6-0.37

4D4-27/6-0.37

0.37

0.5

H(m)

41

39

36

33

27

19

10

4Dm4-45/9-0.55

4D4-45/9-0.55

0.55

0.75

64

60

57

53

45

34

21

4Dm4-55/11-0.75

4D4-55/11-0.75

0.75

1

78

73

70

65

55

43

27

4Dm4-62/13-0.92

4D4-62/13-0.92

0.92

1.25

90

85

81

74

62

47

28

4Dm4-74/15-1.1

4D4-74/15-1.1

1.1

1.5

105

100

95

88

74

55

35

4Dm4-84/17-1.3

4D4-84/17-1.3

1.3

1.75

121

114

108

99

84

65

40

4Dm4-96/19-1.5

4D4-96/19-1.5

1.5

2

134

128

122

112

96

75

46

4Dm4-111/22-1.8

4D4-111/22-1.8

1.8

2.5

159

148

141

130

111

88

56

4Dm4-128/25-2.2

4D4-128/25-2.2

2.2

3

179

169

163

151

128

99

63

/

4D4-161/34-3

3

4

236

222

211

193

161

125

74

/

4D4-206/42-4

4

5.5

294

279

263

242

206

157

93

/

4D4-255/52-5.5

5.5

7.5

364

325

299

286

255

194

115

 

Model

Power

Q(m³/h)

0

1.2

2.4

3.6

4.8

6

7.2

8.4

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

20

40

60

80

100

120

140

4Dm6-18/5-0.37

4D6-18/5-0.37

0.37

0.5

H(m)

33

31

29

27

23

18

12

5

4Dm6-29/7-0.55

4D6-29/7-0.55

0.55

0.75

47

45

43

40

35

29

21

11

4Dm6-38/9-0.75

4D6-38/9-0.75

0.75

1

62

58

56

53

47

38

29

18

4Dm6-42/10-0.92

4D6-42/10-0.92

0.92

1.25

68

64

63

59

52

42

32

20

4Dm6-51/12-1.1

4D6-51/12-1.1

1.1

1.5

82

78

75

70

62

51

38

22

4Dm6-61/14-1.3

4D6-61/14-1.3

1.3

1.75

96

92

88

83

74

61

45

29

4Dm6-72/16-1.5

4D6-72/16-1.5

1.5

2

111

107

103

97

85

72

55

35

4Dm6-83/18-1.8

4D6-83/18-1.8

1.8

2.5

125

120

116

109

99

83

64

41

4Dm6-97/21-2.2

4D6-97/21-2.2

2.2

3

147

141

135

129

116

97

75

50

/

4D6-114/27-3

3

4

178

171

165

155

138

114

87

54

/

4D6-155/36-4

4

5.5

240

231

222

209

187

155

119

74

/

4D6-190/44-5.5

5.5

7.5

293

282

271

255

228

190

145

90

/

4D6-233/54-7.5

7.5

10

360

346

332

313

280

233

178

111

 

Model

Power

Q(m³/h)

0

1.8

3.6

5.4

7.2

9

10

12.6

13.8

15

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

30

60

90

120

150

167

210

230

250

4Dm10-23/6-0.75

4D10-23/6-0.75

0.75

1

H(m)

36

35

34

32

30

26

23

13

3

2

4Dm10-27/7-0.92

4D10-27/7-0.92

0.92

1.25

42

41

39

37

35

30

27

15

6

2

4Dm10-32/8-1.1

4D10-32/8-1.1

1.1

1.5

49

48

45

43

40

35

32

18

8

2

4Dm10-37/9-1.3

4D10-37/9-1.3

1.3

1.75

55

54

51

49

47

42

37

22

12

2

4Dm10-44/10-1.5

4D10-44/10-1.5

1.5

2

63

62

58

55

53

49

44

26

18

2

4Dm10-46/11-1.5

4D10-46/11-1.5

1.5

2

68

67

64

60

58

51

46

28

20

2

4Dm10-49/12-1.8

4D10-49/12-1.8

1.8

2.5

75

74

70

66

62

55

49

30

28

2

4Dm10-62/14-2.2

4D10-62/14-2.2

2.2

3

87

86

82

78

76

67

62

40

17

2

/

4D10-70/18-3

3

4

112

109

101

95

90

79

70

39

24

5

/

4D10-98/23-4

4

5.5

140

139

131

124

119

107

98

62

36

13

/

4D10-129/30-5.5

5.5

7.5

184

182

174

163

156

141

129

82

45

21

/

4D10-155/37-7.5

7.5

10

229

224

211

201

191

167

155

93

52

25

 

Model

Power

Q(m³/h)

0

1.8

3.6

5.4

7.2

9

10.8

12

14.4

16

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

30

60

90

120

150

180

200

240

270

4Dm12-16/5-0.75

4D12-16/5-0.75

0.75

1

H(m)

32

30

28

26

23

21

18

16

11

8

4Dm12-19/6-0.92

4D12-19/6-0.92

0.92

1.25

37

36

33

31

28

25

21

19

13

9

4Dm12-22/7-1.1

4D12-22/7-1.1

1.1

1.5

44

42

39

37

33

29

25

22

16

10

4Dm12-26/8-1.3

4D12-26/8-1.3

1.3

1.75

51

49

46

42

39

34

30

26

19

11

4Dm12-29/9-1.5

4D12-29/9-1.5

1.5

2

58

56

52

49

44

38

32

29

21

13

4Dm12-38/11-1.8

4D12-38/11-1.8

1.8

2.5

70

68

64

59

54

48

41

38

27

17

4Dm12-45/13-2.2

4D12-45/13-2.2

2.2

3

83

80

75

70

64

57

50

45

33

21

/

4D12-54/17-3

3

4

103

98

92

86

78

69

60

54

36

22

/

4D12-70/21-4

4

5.5

130

126

116

108

98

88

77

70

50

35

/

4D12-88/27-5.5

5.5

7.5

168

161

150

139

127

113

98

88

64

41

/

4D12-107/33-7.5

7.5

10

205

195

184

172

156

137

121

107

78

51

 

Model

Power

Q(m³/h)

0

3

6

9

12

15

16

18

21

24

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

50

100

150

200

250

260

300

350

400

4Dm16-14/4-1.1

4D16-14/4-1.1

1.1

1.5

H(m)

21

21

20

18

17

15

14

13

11

8

4Dm16-18/5-1.3

4D16-18/5-1.3

1.3

1.75

26

26

25

23

21

19

18

16

13

10

4Dm16-21/6-1.5

4D16-21/6-1.5

1.5

2

31

31

30

28

25

23

21

20

17

13

4Dm16-28/8-1.8

4D16-28/8-1.8

1.8

2.5

41

41

39

36

33

29

28

25

21

16

4Dm16-33/9-2.2

4D16-33/9-2.2

2.2

3

47

47

45

42

38

34

33

31

26

21

/

4D16-41/12-3

3

4

58

58

56

52

47

42

41

37

32

24

/

4D16-54/16-4

4

5.5

80

80

75

70

63

57

54

50

42

32

/

4D16-75/21-5.5

5.5

7.5

104

104

100

94

84

77

75

69

60

43

/

4D16-92/26-7.5

7.5

10

130

130

124

115

104

94

92

85

73

56

 

 

Performance Curve

Model

Power

Q(m³/h)

0

1.2

2.4

3.6

4.8

6

7.2

8.4

9.6

10.8

12

Single phase
(220-240V/50Hz)

Three phase
(380-415V/50Hz)

kW

HP

Q(L/min)

0

20

40

60

80

100

120

140

160

180

200

4Dm8-22/6-0.55

4D8-22/6-0.55

0.55

0.75

H(m)

36

35

33

30

28

27

24

21

17

11

2

4Dm8-27/7-0.75

4D8-27/7-0.75

0.75

1

44

42

40

36

34

32

29

24

20

13

5

4Dm8-33/9-0.92

4D8-33/9-0.92

0.92

1.25

56

55

50

45

43

41

37

31

25

17

6

4Dm8-37/10-1.1

4D8-37/10-1.1

1.1

1.5

62

60

56

51

48

46

41

35

30

20

8

4Dm8-43/11-1.3

4D8-43/11-1.3

1.3

1.75

69

67

62

57

54

51

47

41

33

24

8

4Dm8-52/13-1.5

4D8-52/13-1.5

1.5

2

82

79

74

67

64

61

57

48

38

29

9

4Dm8-59/15-1.8

4D8-59/15-1.8

1.8

2.5

94

92

85

78

74

70

65

54

45

31

10

4Dm8-72/18-2.2

4D8-72/18-2.2

2.2

3

113

110

102

94

90

86

78

68

55

40

12

/

4D8-86/24-3

3

4

146

138

130

120

113

106

94

82

62

35

12

/

4D8-112/30-4

4

5.5

185

177

163

152

144

135

124

106

84

48

18

/

4D8-147/38-5.5

5.5

7.5

236

231

215

198

187

175

160

140

111

73

31

/

4D8-180/46-7.5

7.5

10

283

272

257

236

225

214

196

171

136

88

41

 

Model Analysis

Component

Material

Pump external casing

1.AISI304SS    2.AISI201SS

Pump outlet

1.AISI304SS    2.HT200  3.Cast-Cu

Pump inlet

1.AISI304SS    2.HT200  3.Cast-Cu

Diffuser

Plastic PC

Diffuser cover

Plastic PC

Impeller

Plastic POM

Shaft(rotor spindle)

1.AISI304SS    2. 06Cr13

Shaft coupling

1.AISI304SS    2. 20Cr13

Motor external casing

1.AISI304SS   2.AISI201SS

Oil chamber

HT200 Stainless steel,Brass

Bottom bearing seat

ADC12

Mechanical seal

Ceramics-graphite

Bottom cover

AISI 304 SS

Shaft(Pump spindle)

AISI 304 SS

Bearing

1.NSK    2.C&U

Seal lubricant oil

10# food-grade lubricant oil

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