Used Vacuum PumpsPfeifferDuo

Pfeiffer · Duo

Pfeiffer Duo 3 — rotary vane, 2.9 m³/h

Original title: PFEIFFER Vacuum DUO 3 Drehschieber-Vakuumpumpe, 230-240VAC, PK D77 510 C

€42044% below market

Market median (sold): €744 from 26 sales in this family

📍 USA

🟢 Good fit

Suitable primary pump for WAVE; well-priced below median.

Condition from photo

Exterior clean, no visible oil leaks, labels intact, motor and pump housing undamaged.

Likely refurb / add-ons

  • Oil change (P3 0.4 L): €30
  • 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
2023 (per nameplate)
Source
eBay
Listing #
eBay #257103679801
Last verified
Aug 11, 2026

Fits WAVE machines: FD260

Type plate (AI reading)

Exact model
DUO 3
Serial
22137638
Year (plate)
2023
Manufacturer Part No.
PK D77 510 C
Pumping speed S(N₂)
max. 2.9 m³/h
Speed
max. 3600 1/min
Oil
P3 0.4 l
Weight
13 kg
Electrical (50 Hz)
200-240 V +10/-10% 3.0 A
Electrical (60 Hz)
200-240 V +10/-10% 2.5 A
Origin
Made in Germany 2023/03
Approvals
CE, UL/CSA 6310.1

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.

W

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