Claw vacuum pumps

Edwards EDC series

The Edwards EDC series at a glance: 2 models from the field of claw vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 2Models
  • 500–950m³/h pumping speed at 50 Hz
  • 200mbar ultimate pressure
  • 9.2–18.5kW rated motor power at 50 Hz
Operating principle: Claw vacuum pumps (schematic drawing)
Operating principle: Claw vacuum pumps

Product overview

Products of the Edwards EDC series

Each row leads to the model with its technical data and variants.

Edwards EDC500Pumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 9.2 kW 50 Hz11 kW 60 HzVariants 5
Edwards EDC1000Pumping speed 950 m³/h 50 Hz1,140 m³/h 60 HzUltimate pressure 200 mbarRated motor power 18.5 kW 50 Hz22 kW 60 HzVariants 5

About the series

Technology and features

Operating principle

Claw vacuum pumps were developed for industrial applications that require constant vacuum, high pumping speed and completely oil-free compression. Two claw rotors running without contact compress the air without oil or other operating fluids in the pump chamber, which saves a considerable amount of energy compared with conventional designs. Explosion-proof versions are available for many series.

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

Features of the series

  • Built-in pressure control for continuous operation at 200 mbar; inlet non-return valve
  • Single-stage, dry (oil-free) claw pump; no mechanical contact between the claws, virtually maintenance-free
  • Silencer with drain valve integrated in the base; an external silencer can be connected in addition
  • Claws and rotor housing with high-temperature-resistant coating against corrosion
  • According to Edwards at least 30% more energy-efficient than oil-sealed pumps; operation with a frequency inverter possible
  • Modular design: gear chamber separated from the pump chamber by a labyrinth seal

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

Frequently asked questions

Questions about the Edwards EDC series

Which models does the Edwards EDC series comprise?
The Ehrler & Beck catalogue lists 2 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 500 to 950 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 200 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 claw 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 Edwards EDC 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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