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MJWm Series

Self-Priming Jet Pump with External Ejector

The MJWm series self-priming jet pump with external ejector has a compact structure and high suction head.

Feature
1. The external ejector for the household booster pump the shows the advantage of small size, light weight and compact structure, and its power consumption is very low. This is very meaningful for investors.

2. The self-priming jet pump allows simple operation and maintenance, and it doesn’t require any specialized staff to take care of it.

3. Our deep-well water pump could be installed at a low location outdoors, and it takes up a small area, which helps to reduce installation cost and make better use of the workshop.

Operating Condition
1. Ambient temperature: Up to +40℃
2. Liquid temperature: Up to +40℃

Exploded View Drawing
Technical Data of MJWm Series Self-Priming Jet Pump
Pump model Ejector model Power Hs (m) Q (L/h)
0 120 240 360 480 600 720 840 960 1082 1200 1320 1440 1560 1680 1800 1920 2040
1-phase 3-phase kW HP H (m)
MJWm75-4" MJW75-4" P3 0.55 0.75 9 35 33 31.5 30 28.5 27 25.5 24.5 23 22 20.5 19.5 18.5 18 - - - -
12 32 30 28.5 27 25.5 24 22.5 21.5 20 19 17.5 - - - - - - -
15 29 27 25.5 24 22.5 21 19.5 18.5 17 - - - - - - - - -
18 26 24 22.5 21 19.5 18 - - - - - - - - - - - -
P4 0.55 0.75 9 38 36 34.5 33 31 29 27.5 26 24.5 - - - -- - - - - -
12 35 33 31.5 30 28 26 24.5 - - - - - - - - - - -
15 32 30 28.5 27 25 23 - - - - - - - - - - - -
18 29 27 25.5 24 - - - - - - - - - - - - -
21 26 24 - - - - - - - - - - - - - - - -
MJWm100-4" MJW100-4" P3 0.75 1 9 46 44 42 40 38 36 34.5 33 31.5 30 28.5 27.5 26.5 25.5 24 23 22 21
12 43 41 39 37 35 33 31.5 30 28.5 27 25.5 24.5 23.5 22.5 21 - - -
15 40 38 36 34 32 30 28.5 27 25.5 24 22.5 21.5 20.5 - - - - -
18 37 35 33 31 29 27 25.5 24 22.5 21 19.5 18.5 17.5 - - - - -
21 34 32 30 28 26 24 22.5 21 19.5 18 - - - - - - - -
P4 0.75 1 9 47 44.5 42 40 37 35 33 31.5 30.5 29 27.5 26 24.5 - - - - -
12 44 41.5 39 37 34 32 30 28.5 27.5 26 24.5 23 - - - - - -
15 41 38.5 36 34 31 29 27 25.5 24.5 23 - - - - - - - -
18 38 35.5 33 31 28 26 24 - - - - - - - - - - -
21 35 32.5 30 28 25 23 - - - - - - - - - - - -
24 32 29.5 27 25 - - - - - - - - - - - - - -
MJWm150-4" MJW150-4" P3 1.1 1.5 9 62 61 60 59 58 57 56 55 54 53 52 51 50.5 50 49 48.5 47.5 46.5
12 59 58 57 56 55 54 53 52 51 50 49 48 47.5 47 46 45.5 44.5 43.5
15 56 55 54 53 52 51 50 49 48 47 46 45 44.5 44 43 42.5 41.5 40.5
18 53 52 51 50 49 48 47 46 45 44 43 42 41.5 41 40 39.5 - -
P4 1.1 1.5 20 84 80 77 73 70 67 64 62 59 57 54 52 50 48 47 45 43 41
25 79 75 72 68 65 62 59 57 54 52 49 47 45 43 42 40 - -
30 74 70 67 63 60 57 54 52 49 47 44 42 40 - - - - -
35 69 65 62 58 55 52 49 47 44 42 39 - - - - - - -
40 64 60 57 53 50 47 44 42 39 - - - - - - - - -
Pump model Ejector model Power Hs (m) Q (L/h)
0 120 240 360 480 600 720 840 960 1082 1200 1320 1440 1560
1-phase 3-phase kW HP H (m)
MJWm75-2" MJW75-2" P1 0.55 0.75 9 35 33 31 30 28.5 27 25.5 24.5 23 22 20 19 18 -
12 32 30 28 27 25.5 24 22.5 21.5 20 19 17 - - -
15 29 27 25 24 22.5 21 19.5 18.5 17 - - - - -
MJWm100-2" MJW100-2" P1 0.75 1 9 46 44 42 40 38 36 34 32 31 30 28 27 26 25
12 43 41 39 37 35 33 31 29 28 27 25 24 23 -
15 40 38 36 34 32 30 28 26 25 24 22 21 - -
18 37 36 33 31 29 27 25 23 22 21 19 - - -
21 34 31 30 28 26 24 22 20 19 - - - - -
MJWm150-2" MJW150-2" P1 1.1 1.5 9 62 61 60 59 58 57 56 55 54 53 52 51 50 49
12 59 58 57 56 55 54 53 52 51 50 49 48 47 -
15 56 55 54 53 52 51 50 49 48 47 46 45 - -
18 53 52 51 50 49 48 47 46 45 44 - - - -
21 50 49 48 47 46 45 44 43 42 - - - - -
24 47 46 45 44 43 42 41 40 - - - - - -
27 44 43 42 41 40 39 38 - - - - - - -
30 41 40 39 38 37 36 - - - - - - - -
Dimension of MJWm Series Self-Priming Jet Pump
Model Installation size (mm)
1-phase 3-phase DNp DN1 DN2 DN3 De a a1 a2 f h h1 l n
MJWm75-4" MJW75-4" 4" 1 1/4" 1" 1" 96 75 50 160 360 201 92 182 180
MJWm100-4" MJW100-4" 4" 1 1/4" 1" 1" 96 75 50 160 360 201 92 182 180
MJWm150-4" MJW150-4" 4" 1 1/4" 1" 1" 96 76 50 160 389 249 123 228 210
Model Installation size (mm)
1-phase 3-phase DNp DN1 DN2 De a a1 a2 f h h1 l n n1
MJWm75-2" MJW75-2" 2" 1 1/4" 1" 48 75 50 254 360 201 92 182 180 145
MJWm100-2" MJW100-2" 2" 1 1/4" 1" 48 75 50 254 360 201 92 182 180 145
MJWm150-2" MJW150-2" 2" 1 1/4" 1" 48 76 50 254 389 249 123 228 210 155
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