Used Vacuum Pumps›Pfeiffer›Duo
Pfeiffer · Duo
Pfeiffer Duo 2.5 — rotary vane, 2.9 m³/h
Original title: Pfeiffer Vacuum DUO 2.5 Vakuumpumpe, PL D41 011C, 110Vac,PK 194 413, unbenutzt, Gr~7200
📍 Singapore
🟢 Good fit
Excellent match for FD260. Unused condition, fair price vs. market median.
Condition from photo
Exterior clean, no visible oil leaks, labels intact. Motor and pump housing appear unworn. Hoses and electrical cord present.
Likely refurb / add-ons
- Oil change (0.4 l IN.45): €30
- Exhaust filter replacement: €80
- Soft-starter (optional, 110 V): €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
- 2014 (per nameplate)
- Source
- eBay
- Listing #
- eBay #294160106937
- Last verified
- Jul 5, 2026
Fits WAVE machines: FD260
Price history— Pfeiffer Duo
Median €819 · 1230 observations · €66–€9.484
Recent sales (Pfeiffer Duo)
- €744May 13, 2026Pfeiffer DUO 3 PK D41 062 K / Agilent G7077-80055 Rotary Vane Vacuum Pump
- €3.255May 1, 2026(Reserved)Teledyne AQUATek 100 Stratum Purge&Trap w/Pfeiffer DUO 2.5 G3170-80024
- €1.457Apr 14, 2026Pfeiffer DUO 65M PK D46 Vacuum Pump
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- DUO 2.5
- Serial
- 21976124
- Year (plate)
- 2014
- Manufacturer Part No.
- PK D41 011 C
- Pumping speed S(N₂)
- max. 2.9 m³/h
- Oil
- P3 0.4 l
- Speed
- max. 3600 1/min
- Weight
- 10.5 kg
- Origin
- Made in Germany
- Date
- 2014/07
- 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.