Busch · Other
Busch Type 250-138 — rotary vane, 20 mbar
Original title: Busch Type 250-138 Vakuumpumpe Vaccumpump 7,5kW 380V 1420rpm 20mbar -used-
📍 Germany
🟡 OK with refurb
Suitable for WAVE freeze dryers; typical refurbishment needed before deployment.
Condition from photo
Exterior shows age and light surface corrosion; motor and pump housing intact; oil level and internal wear not visible from photos.
Likely refurb / add-ons
- Motor oil SAE 30 (6 L capacity) — €40
- Exhaust filter replacement — €80
- Soft-starter or VFD retrofit — €280
Watch out for
- Surface corrosion visible; internal condition unknown without disassembly
- No recent service history provided in listing
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 #168357766686
- Last verified
- Jul 5, 2026
Price history— Busch Other
Median €2.111 · 681 observations · €308–€33.945
Type plate (AI reading)
- Exact model
- Type 250-138
- Serial
- 48347
- Vacuum
- 20 mbar
- Motor Oil
- Type SAE 30
- Quantity
- 6 Ltr.
- Origin
- Made in Switzerland
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Generic Busch vacuum pump — model family not auto-detected. Send us the listing URL for a free identification + suitability check.