Vertical ISG or Horizontal ISW Pipeline Pump? A Side-by-Side Comparison
The ISW is the horizontal version of the pipeline pump. It uses the same impellers and casings as the ISG, so a model number gives the same flow and head in either layout. The choice comes down to space, pipework and service.
| ISG vertical | ISW horizontal | |
|---|---|---|
| Floor space | Very small | Larger, on its own base |
| Height | Taller, motor on top | Low |
| Pipework | Straight through the pump | Suction at the end, discharge on top |
| Large motors | Heavy weight high up | Easier to support |
| Service | Motor and impeller lift out upwards | Accessible from the side |
When we suggest the horizontal ISW
- The plant room is low, or the motor is large and heavy
- The pump is mounted on a skid or a trailer
- You want to reach the pump from the side for service
A recent horizontal order
Three horizontal ISW pumps with 7.5 kW motors were supplied for a dust suppression water system, specified for 30 to 60 m³/h of fresh water at 20 m on 380 V. On a site like that the low profile and the solid base of the horizontal pump suit outdoor installation.
Either layout can be picked from the same model list.
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