Used Vacuum Pumps›Pfeiffer›Duo
Pfeiffer · Duo
Pfeiffer Duo 3 — rotary vane, 2.9 m³/h
Original title: Pfeiffer DUO 3 PK D41 062 H / Agilent G7077-80055 Drehschieber-Vakuumpumpe
📍 USA
Suitability for 1 × FD440
Not verifiedItem type
Not confirmed
Technical
Cannot calculate
Condition
Not evidenced
Data
Family only
🟢 Good fit
Excellent match for FD260; well-priced used unit in good visual condition.
Condition from photo
Clean exterior, intact labels, no visible oil leaks, mounted on white base frame with black motor. Hoses and electrical cord present.
Likely refurb / add-ons
- Oil change (Pfeiffer IN.45, ~0.4 L): €30
- Exhaust filter replacement: €80
- Gas-ballast service inspection: €60
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Year
- 2019 (per nameplate)
- Source
- eBay
- Listing #
- eBay #236772512385
- Last verified
- Jul 28, 2026
The Duo family is recognised, but the exact variant is not supported. Model-specific performance and water-vapour figures from Duo 11 are therefore withheld.
Source: official manufacturer · product page: product family · EN · link checked Aug 5, 2026
Price history— Pfeiffer Duo
Family: DuoExact model is not supported by the listing or type plate.
Median €792 · 997 cleaned observations · €300–€1.860
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 3
- Serial
- 22067506
- Year (plate)
- 2019
- Agilent No.
- G7077-80055
- Manufacturer Part No.
- PK D41 062 H
- Oil
- IN.45 0.4 l
- Pumping speed S(N₂)
- max. 2.9 m³/h
- Speed
- max. 3600 1/min
- Weight
- 10.5 kg
- Electrical (50 Hz)
- 105 V +/-10% 3.2 A
- Electrical (60 Hz)
- 115-125 V +/-10% 3.6 A
- Origin
- Made in Germany
- Approvals
- CE, TÜV Rheinland
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.
Traceable assessment
How each pump is assessed
AI helps read images and listing text. The final suitability result is calculated by a fixed engineering rule using evidenced values.
Method version: 5 August 2026
- 1
Identify the item
The title and photos are checked first to confirm that the listing is a complete vacuum pump — not an accessory, spare part or pump head only.
- 2
Establish evidence
The type plate and listing provide specific facts. Manufacturer values are used only for a confirmed model; family-level values stay clearly labelled.
- 3
Compare engineering data
Pumping speed, water-vapour capacity and ultimate pressure are compared with the selected WAVE machine and the chosen safety margins.
- 4
Assess condition separately
A photo or a seller saying “runs” does not replace a vacuum test. Unknown data remain unknown and never become an automatic green recommendation.