Manufactured by the industry leading experts at GMP, the HGM-ST range is a selection of heavy duty cast iron self-priming pumps suited for trash and waste water applications.
The HGM range are a self-priming electric pump with multi-blade impeller which makes these surface mounted pumps suitable for pumping clean and dirty waste water. The HGM pumps on this page are fully trash duty suited and are provided with an easy open inspection cover to remove any blockages that may occur.

A non return valve is fitted on the inlet of the pump body to avoid the loss of water after the pump has stopped, making it easier to re-prime during the next pumping cycle.
Maximum suction depth of 6 metres and a maximum liquid temperature of 60°c.
Pump casing, inlet flange and impeller are made from cast iron with stainless steel shaft and wear disc. Silicon carbide mechanical seal ensures both reliability and longevity.
Models 4kW and above now supplied on a skid plate.

Supported models include:
HGM1-ST B11/2KQA-ST EA6E
HGM2-ST B2KQA-ST EAR3
HGM3-ST B3KQA-ST EAR5
HG2T-ST B2KQA-ST EAR4
HG3T-ST B3KQA-ST EAR6
B3XRA-ST EANH
| Model: | B1½KQ/A-ST | B2KQ/A-ST | B3KQ/A-ST | B3KQ/A-ST |
|---|---|---|---|---|
| Flowrate Max. (Ltr/min): | 280 | 440 | 850 | 850 |
| Maximum Head (Mtr): | 14 | 17 | 15 | 15 |
| Power (kW): | 0.75 | 1.5 | 2.2 | 2.2 |
| Voltage: | 230v | 230v | 230v | 415v |
| Water Temp Max. (°C): | 70 | 70 | 70 | 70 |
| Construction: | Cast Iron | Cast Iron | Cast Iron | Cast Iron |
| Discharge Size: | 1½ Inch | 2 Inch | 3 Inch | 3 Inch |
| Suction Size: | 1½ Inch | 2 Inch | 3 Inch | 3 Inch |
| Free Passage (mm): | 11 | 19 | 27 | 27 |
| Pumped Medium: | Dirty Water | Dirty Water | Dirty Water | Dirty Water |
| Weight (Kg): | 12 | 24.5 | 32 | 32 |
| Dimensions H x W x L (mm): | 285 x 185 x 375 | 285 x 185 x 375 | 300 x 185 x 445 | 300 x 185 x 445 |
Customer reviews
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Voltage:230v
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Condition:New
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Product Code:070-001
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Weight:12kg
Buy with confidence
At Henry Pumps, we support residential, commercial, and industrial customers, from homeowners and landlords to contractors and facilities teams. Based in Derbyshire, we help solve flooding, drainage, and water management challenges across the UK. Every pump we supply is chosen for proven reliability and performance, backed by expert, straightforward advice you can trust. Whether you’re maintaining a property, managing a building, or dealing with an urgent issue, we’ll help you find the right solution.



