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253B-60-2-2

Lab & Support EquipmentYES 253B-60-2-2 family
Research Quality: 40% complete

The MKS Type 253B-60-2-2 is an exhaust throttle valve. The MKS Type 253B-60-2-2 is a butterfly valve designed to regulate removal of gas from a vacuum chamber when used with an MKS controller. The MKS Type 253B-60-2-2 has an ASA 2 inch flange configuration in the ASA flange specifications.[1]

YES253B-60-2-2
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Power

15-Pin Type "D" connector[1]

Vacuum

MKS Type 253B Exhaust Throttle Valve[1]

How it works

The Type 253B is a valve, so its function is to modulate exhaust flow rather than to generate vacuum or process material directly.[1]

What can it run?

Process applications and technology nodes documented for this tool.

  • vacuum chamber gas removal
  • vacuum pressure control
  • high vacuum pump throttling

What do the numbers mean?

Power & electrical2

Power input
±15 VDC, 1 Amp (30 Watts) nominal, user-supplied[1]
Accurate?
Electrical connector
15-Pin Type "D" connector[1]
Accurate?

Vacuum & pumping3

Type
MKS Type 253B Exhaust Throttle Valve[1]
Accurate?
Function
regulate removal of gas from a vacuum chamber; sealing-valve versions can shut off the removal of gas[1]
Accurate?
Closed leakage
<10^-7 Torr l/sec[1]
Accurate?

Optics & imaging1

Resolution
Standard: 1/10,000; Fast motor option: 1/2800[1]
Accurate?

Control & software2

Controller compatibility
Type 651, 652, 152G, or 252 (revision D or later) controllers[1]
Accurate?
Controller connection
Type 651, 652, 152G, or 252D/252E controllers via listed interface cables[1]
Accurate?

Dimensions & facilities1

Overall height
10.79 in (274.1 mm)[1]
Accurate?

Configuration & options14

Valve style
butterfly valve[1]
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Flange type
ASA[1]
Accurate?
Mounting flange
ASA 2 inch[1]
Accurate?
Inside diameter
2.362 in (60.0 mm)[1]
Accurate?
Outside diameter
5.95 in (151 mm)[1]
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Thickness
0.75 in (19.1 mm)[1]
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Bolt hole diameter
0.75 in (19.1 mm)[1]
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No. of bolt holes
4[1]
Accurate?
Flapper seal
Viton[1]
Accurate?
Valve body operating temperature
0° to 90° C (32° to 194° F) max.[1]
Accurate?
Valve motor ambient operating temperature
0° to 70° C (32° to 158° F) max.[1]
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Speed (open to close)
Standard: 7.5 sec; Optional: < 2 sec[1]
Accurate?
Pin count
15-pin[1]
Accurate?
Cable length
6 in pigtail cable[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.

  • TypeMKS Type 253B Exhaust Throttle Valve[1]
  • Functionregulate removal of gas from a vacuum chamber; sealing-valve versions can shut off the removal of gas[1]
  • Closed leakage<10^-7 Torr l/sec[1]
  • Power input±15 VDC, 1 Amp (30 Watts) nominal, user-supplied[1]
  • Electrical connector15-Pin Type "D" connector[1]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

What is the device type?

The device is an MKS Type 253B exhaust throttling valve.[1]

Not publicly documented

The following facts about the 253B-60-2-2 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 253B-60-2-2 are on record.

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

  • No publicly documented variants, configuration options, or revision breakpoints of the 253B-60-2-2 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 253B-60-2-2 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 253B-60-2-2 are on record.

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

  • The process node or technology generation of the 253B-60-2-2 is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]nanofab.utah.edu — nanofab.utah.edunanofab.utah.edu
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Last updated Oct 9, 2026.

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