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
| Parameter | EU 47 HWT | EU 67 HWT | EU 107 HWT |
| Pumping Speed (m³/h) 50Hz | 50 | 67 | 110 |
| Pumping Speed (m³/h) 60Hz | 56 | 80 | 130 |
| Ultimate Pressure with Gas Ballast (mbar abs) | ≤ 0.8 | ≤ 0.8 | ≤ 0.8 |
| Motor Power (kW) 50Hz | 1.1 | 1.5 | 2.2 |
| Motor Power (kW) 60Hz | 1.1 | 1.5 | 3.0 |
| Motor Speed (rpm) 50Hz | 1500 | 1500 | 1500 |
| Motor Speed (rpm) 60Hz | 1800 | 1800 | 1800 |
| Water Vapour Tolerance (mbar) | 80 | 80 | 100 |
| Water Vapour Pumping Capacity (kg/h) 50Hz | 2 | 2.4 | 9 |
| Water Vapour Pumping Capacity (kg/h) 60Hz | 2.4 | 3.6 | 12.3 |
| Lubricant Charge (l) | 2 | 2 | 2.5 |
| Sound Pressure Level (dB(A)) 50Hz | 61 | 62 | 68 |
| Sound Pressure Level (dB(A)) 60Hz | 62 | 63 | 68 |
| Dimensions (L × B × H) mm 50Hz | 566×316×276(479×316×274) | 606×317×276(520×317×274) | 718×406×327 |
| Dimensions (L × B × H) mm 60Hz | 566×316×276(479×316×274) | 629×317×276(552×317×274) | 750×406×327 |
| Weight (kg) 50Hz | 44(41.7) | 51(49) | 85 |
| Weight (kg) 60Hz | 44.6(43.7) | 53(51) | 89 |
| Connections | Inlet: 1" 1/4 GasOutlet: 1" 1/4 Gas | Sama seperti EU 47 HWT | Sama seperti EU 47 HWT |