Used Vacuum PumpsPfeifferDuo

Pfeiffer · Duo

Pfeiffer Duo 5 MC — rotary vane, 11 m³/h

Original title: Pfeiffer Drehschieber-Vakuumpumpe Modell - DUO 5 MC Nr. PK D61 732 C

€525

📍 United Kingdom

🟡 OK with refurb

Suitable for FD260; typical refurbishment needed before deployment.

Condition from photo

Exterior shows age and dust accumulation; motor and pump housing intact; hoses present; no visible oil leaks or damage.

Likely refurb / add-ons

  • Oil change and filter service (~€80)
  • Exhaust filter replacement (~€80)
  • Soft-starter or VFD (~€280)

WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.

Specifications

Type
Oil-sealed rotary vane
Pumping speed
~11 m³/h
Water-vapour tolerance
~60 g/h
Ultimate vacuum
≤ 0.001 mbar
Year
2010 (per nameplate)
Source
eBay
Listing #
eBay #326808857519
Last verified
Jul 3, 2026

Fits WAVE machines: FD260

Price history Pfeiffer Duo

Median 819 · 1230 observations · €66–€9.484

€300€4.892€9.484Apr. 26Juli 26

Recent sales (Pfeiffer Duo)

Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.

Type plate (AI reading)

Exact model
DUO 5 MC
Serial
PK D61 732 C
Year (plate)
2010
Model
DUO 5 MC
Manufacturer Part No.
PK D61 732 C
Pumping speed S(N₂)
max. 6 m³/h
Ultimate vacuum
≤ 0.75 Pa
Water-vapour tolerance
max. 1500 1/min
Weight
22 kg
Origin
Made in Germany
Approvals
CE

Auto-extracted from one of the listing photos. Verify on the real unit before purchase.

What to look for on this family

Two-stage oil-sealed with gas-ballast. Common pulls from semicon and lab decommissioning — check the oil sight glass before bidding.

Manufacturer datasheet — Pfeiffer Duo

Bauart
Zweistufige ölgedichtete Drehschieberpumpe
Saugvermögen (50 Hz)
1.25 / 2.5 / 5 / 10 / 20 / 35 / 65 m³/h (modellabhängig)
Enddruck (ohne Gasballast)
≤ 6 × 10⁻⁴ mbar
Enddruck (mit Gasballast)
≤ 4 × 10⁻³ mbar
Wasserdampfverträglichkeit
ca. 110 g/h bei DUO 10
Wasserdampfkapazität
ca. 30 mbar (mit Gasballast)
Saugstutzen
DN 16/25 ISO-KF (modellabhängig)
Auslass
DN 16/25 ISO-KF
Betriebsspannung
1-Ph 230 V / 3-Ph 400 V (modellabhängig)
Motorleistung
0.25 – 1.5 kW
Drehzahl (50 Hz)
1500 1/min
Drehzahl (60 Hz)
1800 1/min
Ölsorte
Pfeiffer P3 (mineralisch) bzw. F4 (synthetisch)
Ölfüllung
0.4 – 2.0 l (modellabhängig)
Ölwechsel-Intervall
ca. 2000 Bh oder bei Verfärbung
Geräuschpegel
52 – 60 dB(A)
Gewicht
10.5 – 60 kg (modellabhängig)
Umgebungstemperatur
12 – 40 °C
Schutzart Motor
IP54
Hersteller
Pfeiffer Vacuum GmbH, D-35614 Asslar

Curated from the manufacturer's official datasheet for this family / model. The specific pump may vary slightly by variant.

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