Used Vacuum PumpsPfeifferDuo

Pfeiffer · Duo

Pfeiffer Duo 3 — rotary vane, 2.9 m³/h

Original title: PFEIFFER VACUUM DUO3 PK D57 510A

€723

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

📍 Germany

🟡 OK with refurb

Suitable for WAVE freeze dryers; typical refurbishment needed before deployment.

Condition from photo

Exterior clean, no visible oil leaks. Motor and pump housing intact. Oil level gauge visible and readable. Minor dust accumulation on motor fins.

Likely refurb / add-ons

  • Oil change and filter service — €80
  • Exhaust filter replacement — €60
  • Soft-starter module (optional) — €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
2017 (per nameplate)
Source
eBay
Listing #
eBay #256001429653
Last verified
Aug 19, 2026

Fits WAVE machines: FD260

Type plate (AI reading)

Exact model
DUO 3
Serial
22043647
Year (plate)
2017
Manufacturer Part No.
PK D57 510 A
Oil capacity
P3 0.4 l
Pumping speed S(N₂)
max. 2.9 m³/h
Speed
max. 3600 1/min
Electrical (50 Hz)
230-240 V ±10% 1.4 A
Electrical (60 Hz)
230-240 V ±10% 1.8 A
Power (50 Hz)
0.20 HP 0.15 kW
Power (60 Hz)
0.24 HP 0.18 kW
Power factor (50 Hz)
cos φ 0.97
Power factor (60 Hz)
cos φ 0.95
Insulation class
155 (F)
IP rating
IP 55
Protection temperature
Prot. 160 °C
Duty
AOM
Run capacitor
12 MFD 450 VAC
Origin
Made in Germany 2017/10

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.

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