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Edwards

250 Blower

Edwards 250 Blower family
Research Quality: 30% complete

Provisional entry — research in progress

This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.

Edwards250 Blower
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Power

3 Phase, 208-230/460V, 60Hz[1]

Vacuum

KF40[1]

What it is

The Edwards 250 Blower is also referred to as the Edwards EH 250. The blower is classified as a blower for vacuum applications.[2][1]

Applications

Applications for the Edwards EH 250 blower include semiconductor processing, thin film coating, vacuum distillation and packaging, steel degassing, vacuum metallurgy, low density wind tunnels, space simulation, vacuum impregnation, oil drying and degassing, pharmaceutical freeze drying, and CO2 lasers.[1]

What do the numbers mean?

Power & electrical1

Motor
3 Phase, 208-230/460V, 60Hz[1]
Accurate?

Vacuum & pumping3

Exhaust
KF40[1]
Accurate?
Pumping speed
141 CFM (with E2M40)[1]
Accurate?
Pumping speed
220 CFM[3]
Accurate?

Dimensions & facilities1

Weight
134 lbs[1]
Accurate?

Configuration & options6

Type of product
blower[1]
Accurate?
Manufacturer
Edwards[2]
Accurate?
Model
250[2]
Accurate?
Model
EH-250[1]
Accurate?
Inlet
ISO63[1]
Accurate?
Oil
PFPE[1]
Accurate?
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • ExhaustKF40[1]
  • Motor3 Phase, 208-230/460V, 60Hz[1]
  • Pumping speed141 CFM (with E2M40)[1]
  • Pumping speed220 CFM[3]

Where are the manuals?

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Not publicly documented

Field notes

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Frequently asked questions

What is the pumping speed of the Edwards EH 250 blower?

The pumping speed is 141 CFM when used with an E2M40 backing pump.[1]

What inlet and exhaust connections does the Edwards EH 250 have?

The inlet is ISO63 and the exhaust is KF40.[1]

What type of motor does the Edwards EH 250 use?

The motor is three-phase, 208-230/460V, 60Hz.[1]

What oil does the Edwards EH 250 use?

The blower uses PFPE oil.[1]

Not publicly documented

The following facts about the 250 Blower are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 250 Blower are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the 250 Blower are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the 250 Blower are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the 250 Blower are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the 250 Blower is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (3)Every fact above is drawn from these public sources
  1. [1]provac.com — provac.comprovac.com
  2. [2]Equipment inventory listing
  3. [3]jmind.comjmind.com
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Last updated Sep 24, 2026.

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