Used Vacuum Pumps›Pfeiffer›Duo
Pfeiffer · Duo
Pfeiffer Duo 2.5 — rotary vane, 2.9 m³/h
Original title: Pfeiffer Vacuum DUO 2.5 Vacuum Pump,PL D41 011C,110Vac,PK 194 413,Unuse,Gr~7200
Market median (sold): €749 from 33 sales in this family
📍 Singapore · Yr 2014
🟡 OK with refurb
Suitable for WAVE freeze dryers; typical refurb needed before deployment.
Condition from photo
Exterior clean, no visible oil leaks. Motor housing and pump body intact. Hoses present. Label legible. Appears unused but age unknown.
Likely refurb / add-ons
- Oil change & filter service (€80–120)
- Exhaust filter replacement (€80)
- Soft-starter module (€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
- Source
- eBay
- Listing #
- eBay #294160106937
- Last verified
- Jun 10, 2026
Fits WAVE machines: FD260
Price history— Pfeiffer Duo
Median €869 · 2178 observations · €66–€9.484
Recent sales (Pfeiffer Duo)
- €935Oct 2, 2026Pfeiffer DUO 2.5 PK D41 064 E Vacuum pump max: 2.9m³ /h 3000/min used
- €529Sep 22, 2026Pfeiffer Vacuum DUO 3 High-Performance Rotary Vane Vacuum Pump 115-230V
- €631Sep 22, 2026Yr 20192019 Pfeiffer DUO 3 Rotary Vane Vacuum Pump 4.7 mTorr 120V w/ Agilent Filter
- €1.767Sep 22, 2026Pfeiffer Vacuum Duo 11 ATEX Rotary Vane Pump - Brand New - 230V PK D59 915 D
- €749Sep 22, 2026Pfeiffer Duo 2.5 Pk D41 064F Agilent G3170-80026 Vacuum Pump 220-240V Used
- €1.860Sep 22, 2026Pfeiffer DUO 11 Vacuum Pump PK D590 010 F0 , 2000249751
- €865Sep 22, 2026Pfeiffer Duo 2.5 PK D41 064 E Vacuum Pump Max: 2.9m³/h 3000/min Used
- €660Sep 22, 2026Pfeiffer Duo 2.5 PK D41 064F Vacuum Pump
- €671Sep 22, 2026Pfeiffer DUO 2.5 PK D41 064F Agilent G3170-80026 Vacuum Pump 220-240V Used
- €682Sep 22, 2026Pfeiffer DUO 2.5 PK D41 064F Agilent G3170-80026 Vacuum Pump 3600 RPM Used
- €811Sep 22, 2026Pfeiffer Balzers DUO 012A UF6 Version Fomblin Vacuum Pump 12 m³/h
- €746Sep 22, 2026Pfeiffer Balzers DUO 008 B Halogen Res. Vacuum pump 8 m³/h Fomblin 220V
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- PBF 71/2B-11RQ
- Serial
- 236535501-H 0017
- Year (plate)
- 2008
- Manufacturer Part No.
- PK 194 413
- Electrical (50 Hz)
- 100-105 V 50 Hz, 0.20 HP, 3.2 A, cos φ 0.97, 2880 RPM
- Electrical (60 Hz)
- 110-130 V 60 Hz, 0.24 HP, 3.6 A, cos φ 0.95, 3420 RPM
- Insulation Class
- 155 (F)
- Protection Class
- IP 55
- Capacitor
- CB50uF240VDB
- Thermal Protection
- 160 °C
- Customer Part No.
- PK 194 413
- Approvals
- UL, cUL, E123665
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.