Liquid ring vacuum pumps

Edwards EHR/SHR series

The Edwards EHR/SHR series at a glance: 9 models from the field of liquid ring vacuum pumps – with technical data, variants and the option to send an enquiry.

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  • 9Models
  • 190.8–4,500m³/h pumping speed at 50 Hz
  • 30mbar ultimate pressure
  • 5.5–132kW 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 Edwards EHR/SHR 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.

Edwards EHR2190Pumping speed 190.8 m³/h 50 Hz216 m³/h 60 HzUltimate pressure 30 mbarRated motor power 5.5 kW 50 Hz5.5 kW 60 HzVariants 3
Edwards EHR2290Pumping speed 291.6 m³/h 50 Hz331.2 m³/h 60 HzUltimate pressure 30 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 1
Edwards EHR2390Pumping speed 388.8 m³/h 50 Hz439.2 m³/h 60 HzUltimate pressure 30 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 3
Edwards SHR2400Pumping speed 608.4 m³/h 50 Hz698.4 m³/h 60 HzUltimate pressure 30 mbarRated motor power 22 kW 50 Hz30 kW 60 HzVariants 3
Edwards SHR2750Pumping speed 1,231.2 m³/h 50 Hz1,440 m³/h 60 HzUltimate pressure 30 mbarRated motor power 45 kW 50 Hz55 kW 60 HzVariants 3
Edwards SHR2950Pumping speed 1,681.2 m³/h 50 Hz1,918.8 m³/h 60 HzUltimate pressure 30 mbarRated motor power 55 kW 50 Hz75 kW 60 HzVariants 3
Edwards SHR21200Pumping speed 1,958.4 m³/h 50 Hz2,239.2 m³/h 60 HzUltimate pressure 30 mbarRated motor power 75 kW 50 Hz90 kW 60 HzVariants 2
Edwards SHR21850Pumping speed 3,279.6 m³/h 50 Hz3,816 m³/h 60 HzUltimate pressure 30 mbarRated motor power 110 kW 50 Hz132 kW 60 HzVariants 2
Edwards SHR22500Pumping speed 4,500 m³/h 50 Hz4,896 m³/h 60 HzUltimate pressure 30 mbarRated motor power 132 kW 50 Hz150 kW 60 HzVariants 2

Model comparison

About the series

Technology and features

Operating principle

Liquid ring vacuum pumps, built from high-quality materials such as stainless steel and ceramics, are used predominantly in humid and wet processes. An eccentrically mounted impeller forms a liquid ring in 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

  • Bare shaft version for drive via coupling or belt
  • Mechanical seals flushed via internal channels – only operating liquid required
  • Two-stage design with valve plates
  • Materials: grey cast iron, grey cast iron with stainless steel impellers, or stainless steel 316

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

Frequently asked questions

Questions about the Edwards EHR/SHR series

Which models does the Edwards EHR/SHR series comprise?
The Ehrler & Beck catalogue lists 9 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 190.8 to 4,500 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 Edwards EHR/SHR 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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