PVR EU HWT 300-650

PVR EU HWT 300-650 is intended for industrial vacuum duties with elevated water-vapour loads where condensation control is a key selection factor. The EU 300 HWT and EU 650 HWT group uses PVR rotary-vane technology to provide a defined relationship between pumping speed and operating pressure, which is central to equipment sizing. For engineers and maintenance teams, the key decision is to match the required pressure, gas load, operating frequency and vapour content to the correct version rather than select on flow alone.An oversized circuit and gas ballast reduce condensation risk when larger quantities of vapour are pumped, while air-oil heat-exchanger cooling supports thermal control. AxFlow Czech lists ATEX versions for EU 300 HWT and EU 650 HWT.Verified technical data for PVR EU HWT 300-650 includes 290 and 660 m³/h at 50 Hz (345 and 790 m³/h at 60 Hz) and an ultimate pressure of ≤0.8 mbar with gas ballast. PVR specifies 0.8–850 mbar absolute. The published range also includes water-vapour pumping capacities of 13.5 and 19 kg/h at 50 Hz. These datapoints provide a selection basis, but the final operating point must be checked against the exact pump version and process conditions.Oil-lubricated rotary vane construction combines continuous lubrication with defined gas handling and serviceable components. Features such as check valves, oil-mist separation and gas ballast where fitted help protect restart behaviour, exhaust cleanliness and vapour handling, which can reduce avoidable maintenance events. AxFlow can support product selection, service and spare parts for PVR EU HWT 300-650; planned maintenance and correct variant selection help control downtime risk, process continuity and total cost of ownership.