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MQS Series

Self-Priming Pump with Aluminum Motor Casing

The MQS series self-priming pump with copper impeller cover has a compact structure, while the pump and motor are close-coupled. We could design and manufacture various kinds of such pumps to fit for different regions and working conditions, so these household water pumps exhibit a long service life and a high price performance ratio.

Features of the Self-Priming Pump
1. Our self-priming pump has a small footprint, but it delivers stable performance as expected. In addition, it doesn't require any further adjustment after installation.

2. The inlet port and outlet port both adopt flange connection, which ensures convenient pipeline layout and simple pump installation.

3. The pump and motor share one shaft, and the axial dimension is short. As a result, this single-phase self-priming pump is able to work steadily with a low noise level.

Operating Condition
1. Ambient temperature: Up to +40℃
2. Liquid temperature: Up to +60℃

Technical Data of MQS Self-Priming Pump
Model Power Q m3/h 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7
1-phase 3-phase kW HP L/min 0 5 10 15 20 25 30 35 40 45
MQS121 0.25 0.33 H (m) 27 20 15 10 6 3 2 - - -
MQS125 0.37 0.50 30 25 20 15 11 6 3 - - -
MQS128 0.37 0.50 32 26 22 17 12 7 4 - - -
MQS228 0.45 0.60 40 37 33 28 22 18 13 9 4 -
MQS328 0.55 0.75 50 44 39 33 29 22 16 11 6 -
MQS428 0.75 1 60 53 46 39 33 26 20 15 10 6
Dimension of MQS Self-Priming Pump
Model Pipe diameter (inch) Installation size (mm)
1-phase 3-phase DN1 DN2 a f h h1 i m n n1 w s
MQS121 1 1 16 253 178 116 124 90 121 100 65 7
MQS125 1 1 35 233 208 146 124 90 121 100 65 7
MQS128 1 1 35 233 238 176 124 90 121 100 65 7
MQS228 1 1 42.5 273 252 189 145 103 137 110 60.5 7
MQS328 1 1 42.5 273 252 189 145 103 137 110 60.5 7
MQS428 1 1 45 275 255 189 145 103 137 110 60.5 7
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