EU HWT Series Description
The EU HWT series pumps are single-stage rotary vane lubricated vacuum pumps with oil recirculation.
The flanged electric motor is coupled by an elastic coupling.
Cooling is provided by a centrifugal fan on the smaller pumps; starting from the EU 160 HWT, cooling is provided by an air-oil heat exchanger combined with a centrifugal fan.
An integrated check valve prevents the oil from rising and air from re-entering the chamber to be drained during shutdown.
An oil mist separation system is built into the tank to separate the oil mist from the exhaust air; the oil is automatically recovered by the pump.
The oversized circuit and the gas ballast valves prevent condensation inside the pump when pumping large quantities of vapour.
Vacuum Range
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EU HWT Series: from 0.8 to 850 mbar (absolute)
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Only EU 160 HWT: 0.8 to 400 mbar (absolute)
ACCESSORIES
The following accessories are available and useful for the installation and control of the pump operating parameters:
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External inlet filter
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Vacuum gauges / vacuostats
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Pressure gauges / pressure switches
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Thermostat
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Minimum oil level switch