Used Vacuum Pumps›Pfeiffer›Duo
Pfeiffer · Duo
Pfeiffer Duo — rotary vane, 11 m³/h, with motor
Original title: PFEIFFER VACUUM DUO 1.6 Rotary Slide Valve Pump PK D56 712 A + HANNING E6x4B-5
📍 France
🟡 OK with refurb
Suitable for FD260; typical refurbishment needed before deployment.
Condition from photo
Exterior clean, no visible oil leaks. Motor and pump assembly intact. Labels readable. Age and internal wear cannot be assessed from photos.
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
- Source
- eBay
- Listing #
- eBay #127897813436
- Last verified
- Jun 28, 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
- E6x4B-55
- Manufacturer
- Hanning Elektro-Werke
- Type
- E6x4B-55
- Power
- 0.075 / 0.09 kW
- Protection class
- IP 40
- Current (50 Hz)
- 1.15 / 1.0 A
- Voltage (50 Hz)
- 230–240 V ±10 %
- Frequency (50 Hz)
- 50 Hz
- Voltage (60 Hz)
- 230–240 V ±10 %
- Frequency (60 Hz)
- 60 Hz
- Speed
- 1390 / 1670 1/min
- Power factor
- cos φ 0.84 / 0.98
- Capacitor
- C: 10 µF 400 V
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.