Some water duties need a very large flow but only a modest lift, such as circulating cooling water. A vertical mixed flow pump moves those big volumes at a low head.
Its impeller both pushes and lifts the water, which suits moving a large volume without needing a high head.
This guide explains what a vertical mixed flow pump does, where it fits, and how to keep it reliable.
What This Pump Does
The impeller of a mixed flow pump both pushes the water outward and lifts it along, between the actions of the two main pump types.
That mix suits moving a very large volume of water at a modest head rather than a small flow at high pressure.
Standing upright, it draws from a sump below and moves the big flow with a small footprint.
Where It Fits in the Plant
Circulating cooling water is a large flow at a modest head, which is exactly what a mixed flow pump is for.
Other high volume low lift water duties around the plant suit it in the same way.
By moving the big volumes, it keeps the cooling and circulating systems supplied.
Signs the Pump Needs Attention
A mixed flow pump in trouble shows up in the large flow.
- The large flow falling off
- Wear in the impeller
- Vibration in the shaft or column
- The column bearings wearing
- Noise from the drive on top
What Makes a Good Mixed Flow Pump?
This pump is judged by large steady flow and a sound column.
Large Flow at Low Head
The pump must move a very large volume at the modest head the duty needs. Large flow at low head is what it is for.
A Sound, Aligned Column
The shaft and column must stay sound and aligned to run without vibration. A sound column keeps the big flow reliable.
Keeping the Pump Running
Routine attention keeps a mixed flow pump moving your big flows.
- Watch the large flow the pump delivers
- Watch the shaft and column for vibration
- Maintain the column bearings
- Keep the drive on top maintained
Common Questions About Vertical Mixed Flow Pumps
For very large flows of water at a modest head, such as circulating cooling water. Its impeller both pushes and lifts the water to move big volumes.
A high pressure pump moves a smaller flow at high pressure, while a mixed flow pump moves a very large flow at a low head. They suit opposite duties.
On circulating cooling water and other high volume low lift water duties across the plant.
Watching the flow, watching the shaft for vibration, maintaining the column bearings, and maintaining the drive keep it moving big flows.
Move the Big Flows
A vertical mixed flow pump moves very large volumes of water at a modest head, which suits circulating cooling water. Large flow and a sound column are what make it reliable.
If you circulate large volumes of cooling water, a mixed flow pump fits. Explore our pumps and plant equipment for the right size.
See our range of pumps and move very large flows of cooling water at a modest head.
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