Used Vacuum Pumps›Pfeiffer›Other
Pfeiffer · Other
Pfeiffer Balzers DUO 004 B — rotary vane, 4 m³/h
Original title: PFEIFFER BALZERS DU0 004 B Drehschieber Vakuumpumpe 4m³/h
📍 Germany
🟡 OK with refurb
Suitable for WAVE freeze dryers; typical refurbishment needed before use.
Condition from photo
Exterior shows age and dust accumulation; oil level and internal wear cannot be assessed from photos. Nameplate legible. No visible leaks or major damage.
Likely refurb / add-ons
- Oil change and filter service — €80–120
- Gas-ballast valve service — €60–100
- Exhaust filter replacement — €80–120
Watch out for
- Age and dust suggest extended storage; internal condition unknown without teardo
- Single-stage rotary vane; verify compatibility with your WAVE model's vacuum req
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- other
- Pumping speed
- ~0 m³/h
- Water-vapour tolerance
- ~0 g/h
- Ultimate vacuum
- —
- Source
- eBay
- Listing #
- eBay #134431516041
- Last verified
- Jul 26, 2026
Price history— Pfeiffer Other
Median €1.116 · 922 observations · €372–€23.648
Type plate (AI reading)
- Exact model
- DUO 004 B
- Type
- DUO 004 B
- Manufacturer Part No.
- PK D42 305 /N4643A
- Volume flow rate
- 4 m³/h
- Ultimate pressure
- 1 × 10⁻⁴ mbar
- Drive power
- 0.25 kW
- Nominal voltage
- 3 ~ 1 380–415 V
- Nominal current
- 1.2 A
- Frequency
- 50/60 Hz
- Protection
- IP 55
- Operating agent
- P3
- Motor
- 0.9 l
- Pump
- 0.8 l
- Origin
- Made in Germany
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Generic Pfeiffer vacuum pump — model family not auto-detected. Send us the listing URL for a free identification + suitability check.