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Edwards · Stokes 6" Mechanical Booster Pumps

Stokes 622

Roots / BoosterOil-freeOEM data2 values carry a verification flag
Edwards Stokes 622

*Photo shows the Stokes series, not necessarily this exact model. Image: Edwards

Pumping speed
5,100 m³/h
Noise level
82 dB(A)
Motor power
18 kW
Max. vacuum
333 mbar

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Edwards product page · retrieved 2026-10-04
As published2750 rpm3600 rpmValue50 Hz @ 3000 rpm60 Hz @ 3600 rpmas printed: "Max pressure differential"; 250 Torr
Nominal displacement
Pumping speed
5100 m³/h
oem source
Source · 2026-10-04
6630 m³/h
oem source
Source · 2026-10-04
Noise level
<82 dB(A)
oem source
Source · 2026-10-04
Motor power
18 kW
oem verified
Source · 2026-10-04
18 kW
oem verified
Source · 2026-10-04
Max. vacuum
333 mbar
oem source
Source · 2026-10-20

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

Same family: Stokes 607, Stokes 615

Reviewed operating performance · 60 Hz

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Documents

Documents open on the manufacturer’s site.

Service parts · 62

Rotating parts8
Other parts54

Part numbers from Edwards’s parts lists, shop and instruction manuals. Open a part for its other models, replacements and suppliers.

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Edwards Stokes 622 | Vac & Air