High Temperature Pumps
Hot Oil Pump
Magnetic drive heat transfer pump for hot oil and hot water to 350 degrees.
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Solution
Pumps For Heat Transfer Circuits To 350 Degrees
Hot circuits punish the seal first. The equipment here is chosen so the circuit runs unattended: magnetic drives where there is no seal to fail, and centrifugal pumps rated for the temperature rather than pushed past it.
From Enquiry To Site
From Circuit Drawing To Running Loop
Temperature is only half the specification. Circuit resistance and the fluid itself decide whether the pump survives.
Fluid
Thermal oil and hot water are treated as interchangeable.
Fluid type, working temperature and corrosiveness are confirmed first, because they rule out entire pump families.
Circuit Resistance
Head is estimated from pipe length alone.
We work from the circuit layout, including heat exchangers and valves, so the pump is not throttled at start up.
Pump Type
A sealed pump is fitted where no seal would survive.
Magnetic drive where the temperature and risk justify it, sealed centrifugal where the duty is within the rating.
Protection
Expansion, venting and dry run protection are left to site.
We state what the circuit needs around the pump so it is designed in rather than added after the first failure.
Commissioning
The circuit is filled and started cold and fast.
Start up sequence and run-in checks supplied with the pump, including venting and temperature ramp guidance.
Operation
Nobody notices performance drifting until output falls.
Simple checks on flow, temperature difference and noise that tell an operator something has changed.
What This Removes From Your Workload
- No shaft seal on the magnetic drive units, so no leak path on hot oil
- Pumps rated for the working temperature instead of pushed past it
- Circuit advice as well as a pump, including protection requirements
- Two speed builds so the duty can be matched without throttling
- Spares and seal kits available against the model number
What We Need From You
- Fluid type and working temperature
- Flow and circuit resistance, or the circuit drawing
- Supply voltage, phase and frequency
- Whether the circuit can run dry at any point
- Ambient conditions around the pump
Equipment In Scope
Pumps Used In Heat Transfer Circuits
Centrifugal Pumps
SKWR Horizontal Hot Water Pump
Horizontal pump for pressurised hot water circulation to 120 degrees.
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Centrifugal Pumps
SKWS High Temperature Centrifugal Pump
Horizontal pump rated for pressurised circulation to 240 degrees.
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Centrifugal Pumps
SKGR Hot Water Pump
Vertical inline pump for hot water circulation to 120 degrees.
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Centrifugal Pumps
SKGS High Temperature Centrifugal Pump
Vertical inline pump rated to 240 degrees for pressurised circuits.
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Gear Pumps
K2CY Gear Pump
External gear pump for lubricating oil fuel and hydraulic duty.
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Thermal Oil And Hot Water Circuits FAQ
How hot can these pumps run?
The magnetic drive heat transfer line is rated to 350 degrees Celsius for hot oil duty. The hot water and high temperature centrifugal models carry their own limits on each data sheet.
Why does a hot oil circuit need a seal free pump?
Hot oil degrades seal faces and elastomers, and a leak on a hot oil line is a fire risk. With a magnetic drive there is no shaft passing through the housing.
Can the same pump handle hot water and thermal oil?
The heat transfer line covers both, but the model and the rating depend on the fluid and temperature. Always state which fluid is in the circuit.
What flow range is available?
The heat transfer builds run from 10 L per minute at 8 m head to 30 L per minute at 40 m head. Larger duties move to the high temperature centrifugal models.
Do you supply the expansion and protection equipment?
We supply the pump and tell you what the circuit needs around it. The protection equipment is usually sourced locally with the rest of the installation.
Send The Circuit Not Just The Temperature
Fluid, temperature, flow and circuit resistance are what let us confirm a pump that will still be running next year.