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Pfeiffer

TPH 521 PC Turbo

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.

PfeifferTPH 521 PC Turbo
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What it is

The Pfeiffer TPH 521 PC is a turbomolecular vacuum pump.[1][2][4][3]

The Pfeiffer TPH 521 PC is used with a turbo pump controller, and one configuration pairs it with the TC 600 Turbo Pump Controller.[3][4]

How it works

The pump can be installed directly on a vacuum chamber or used as part of a turbo pumping station.[3]

Where it fits in the process flow

The pump can serve as a chamber-mounted pump or as a component in a pumping station that supports other vacuum process equipment.[3]

Applications

The Pfeiffer TPH 521 PC is used in research and industrial vacuum systems.[3]

What do the numbers mean?

Vacuum & pumping6

Type
Turbo Pump[2]
Accurate?
Type
Turbomolecular Drag Pump[3]
Accurate?
Controller
TC 600 Turbo Pump Controller[3]
Accurate?
Exhaust
KF25[2]
Accurate?
Pumping speed
430 l/s (N2)[4]
Accurate?
Pumping speed
260 l/s (N2)[2]
Accurate?

Control & software1

Model
TPH 521 PC[1]
Accurate?

Configuration & options6

Compatible controllers
DCU-001, DCU-300, TPS-300[2]
Accurate?
Inlet flange
DN 160 ISO-K[3]
Accurate?
Inlet
ISO160[4]
Accurate?
Outlet flange
KF-25[3]
Accurate?
Compression ratio
> 10^7 (N2)[2]
Accurate?
Manufacturer
Pfeiffer[1]
Accurate?

Vintage & configurations

Documented models & variants

DesignationGenerationVintageChangesSource
TPH-521PC Turbo Pump with TC600——Described as new, with ISO160 inlet, KF25 exhaust, and 430 l/s (N2) pumping speed.provac.com[4]
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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.

  • TypeTurbo Pump[2]
  • TypeTurbomolecular Drag Pump[3]
  • ControllerTC 600 Turbo Pump Controller[3]
  • ExhaustKF25[2]
  • Pumping speed430 l/s (N2)[4]
  • Pumping speed260 l/s (N2)[2]

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 typical maintenance requirement for a turbomolecular pump?General reference — not yet source-verified

Turbomolecular pumps generally require periodic bearing replacement, as the high-speed rotor is supported by bearings that wear over time. Some designs use magnetic levitation to eliminate mechanical wear. Regular replacement of the backing pump oil (if oil-sealed) is also necessary. Maintenance intervals depend on operating conditions and the manufacturer's recommendations.

Are turbomolecular pumps oil-free?General reference — not yet source-verified

Many turbomolecular pumps are designed to be dry or oil-free in the high-vacuum region, using grease-lubricated or magnetically levitated bearings. However, some models may have oil-lubricated bearings that require careful oil selection and management to prevent contamination of the vacuum environment.

What backing pump is needed with a turbomolecular pump?General reference — not yet source-verified

A turbomolecular pump must be backed by a roughing pump (e.g., rotary vane, diaphragm, or scroll pump) capable of maintaining a foreline pressure typically in the range of a few millibars or lower. The exact requirement depends on the pump's compression ratio and the specific gas being pumped.

Can a turbomolecular pump be operated in any orientation?General reference — not yet source-verified

Orientation depends on the bearing design. Turbomolecular pumps with oil-lubricated bearings usually have a preferred upright orientation to ensure proper oil flow. Magnetically levitated or dry-lubricated pumps may be mounted in various orientations, but the manufacturer's guidelines should always be followed.

How long can a turbomolecular pump run continuously?General reference — not yet source-verified

Continuous operation life varies widely by design and application. Oil-lubricated pumps may require bearing replacement after several thousand hours, while magnetically levitated pumps can run for tens of thousands of hours with minimal maintenance. Factors such as gas load, contamination, and start-stop cycles affect the actual lifetime.

Not publicly documented

The following facts about the TPH 521 PC Turbo 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 TPH 521 PC Turbo are on record.

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

  • The control-system platform and OS era of the TPH 521 PC Turbo 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 TPH 521 PC Turbo are on record.

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

  • The process node or technology generation of the TPH 521 PC Turbo is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

  • No publicly documented compatible parts, consumables, or accessories for the TPH 521 PC Turbo are on record.

    Answerable by: an OEM parts catalog or a service engineer

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Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]Equipment inventory listing
  2. [2]provac.com — provac.comprovac.com
  3. [3]ajvs.com — ajvs.comajvs.com
  4. [4]provac.com — provac.comprovac.com
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Last updated Oct 4, 2026.

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