Liquid ring vacuum pumps

Atlas Copco AWC A series

The Atlas Copco AWC A series at a glance: 8 models from the field of liquid ring vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 8Models
  • 25–350m³/h pumping speed at 50 Hz
  • 30mbar ultimate pressure
  • 0.9–11kW rated motor power at 50 Hz
Operating principle: Liquid ring vacuum pumps (schematic drawing)
Operating principle: Liquid ring vacuum pumps

Product overview

Products of the Atlas Copco AWC A series

Use the filters on the left to narrow the models down by their key figures. Each row leads to the model with its technical data and variants.

AWC 25 APumping speed 25 m³/h 50 Hz31 m³/h 60 HzUltimate pressure 30 mbarRated motor power 0.9 kW 50 Hz1.1 kW 60 Hz
AWC 45 APumping speed 45 m³/h 50 Hz58 m³/h 60 HzUltimate pressure 30 mbarRated motor power 1.9 kW 50 Hz2.2 kW 60 Hz
AWC 80 APumping speed 80 m³/h 50 Hz99 m³/h 60 HzUltimate pressure 30 mbarRated motor power 3 kW 50 Hz3.7 kW 60 Hz
AWC 110 APumping speed 110 m³/h 50 Hz136 m³/h 60 HzUltimate pressure 30 mbarRated motor power 3 kW 50 Hz3.7 kW 60 Hz
AWC 140 APumping speed 134 m³/h 50 Hz165 m³/h 60 HzUltimate pressure 30 mbarRated motor power 3.7 kW 50 Hz5.6 kW 60 Hz
AWC 190 APumping speed 190 m³/h 50 Hz234 m³/h 60 HzUltimate pressure 30 mbarRated motor power 5.6 kW 50 Hz7.5 kW 60 Hz
AWC 280 APumping speed 279 m³/h 50 Hz342 m³/h 60 HzUltimate pressure 30 mbarRated motor power 7.5 kW 50 Hz11 kW 60 Hz
AWC 350 APumping speed 350 m³/h 50 Hz432 m³/h 60 HzUltimate pressure 30 mbarRated motor power 11 kW 50 Hz15 kW 60 Hz

Model comparison

About the series

Technology and features

Operating principle

Liquid ring vacuum pumps, built with high-quality materials such as stainless steel and ceramics, are used predominantly in humid and wet processes. An eccentrically running impeller forms a liquid ring from the operating liquid, which draws in, compresses and discharges the gas. The pumps are extremely quiet, insensitive to condensate and low-wear.

The technology page shows the operating principle with an interactive drawing: Liquid ring vacuum pumps.

Features of the series

  • Single-stage, ultimate pressure 30 mbar(a)
  • Impeller made of 316 stainless steel as standard, mechanical seals
  • Variable port opening for optimum efficiency at all inlet pressures
  • Water as the operating liquid: isothermal compression, insensitive to vapour, condensate, liquid carry-over and particles

Manufacturer's data as given in the product descriptions of the individual models.

Frequently asked questions

Questions about the Atlas Copco AWC A series

Which models does the Atlas Copco AWC A series comprise?
The Ehrler & Beck catalogue lists 8 models of the series. The product overview names each model with its key figures and the number of its variants; the model page shows the technical data.
Which pumping speeds does the series cover?
At 50 Hz the models cover pumping speeds from 25 to 350 m³/h. The figure comes from the product data of the individual models; values for 60 Hz, where available, are given in the product overview.
What ultimate pressure do the models of the series reach?
The ultimate pressure is 30 mbar. The figures on the page of the respective model are decisive.
How does the technology of the series work?
The series belongs to the field of liquid ring vacuum pumps. The technology page explains the operating principle with an interactive drawing and names all series of this technology.
Does Ehrler & Beck supply spare parts and service for the Atlas Copco AWC A series?
Yes. Ehrler & Beck supplies the models of the series as well as spare parts and accessories and takes care of maintenance and repair. For a quotation, an enquiry with the model or part number is all it takes.

Which model fits your process?

Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.

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