Used Vacuum Pumps›Leybold›Trivac D
Leybold · Trivac D
Leybold Trivac D40B & RUvac WSU251 — rotary vane, 40 m³/h
Original title: Leybold Trivac D40B & RUvac WSU251 Vacuum System Lab
Market median (sold): €650 from 5 sales in this family
📍 USA
🟢 Good fit
Excellent match for FD440/FD440 MAX; dual-pump system exceeds requirements.
Condition from photo
Clean exterior, mounted on frame with motor and control box; no visible oil leaks or damage.
Likely refurb / add-ons
- Oil change & filter service (~€120)
- Exhaust filter replacement (~€80)
- Soft-starter inspection (~€60)
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Pumping speed
- ~40 m³/h
- Water-vapour tolerance
- ~250 g/h
- Ultimate vacuum
- ≤ 0.002 mbar
- Year
- 1991 (per nameplate)
- Source
- eBay
- Listing #
- eBay #205843671678
- Last verified
- Jul 5, 2026
Fits WAVE machines: FD440, FD440 MAX
Price history— Leybold Trivac D
Median €1.187 · 1148 observations · €22–€13.945
Recent sales (Leybold Trivac D)
- €650May 19, 2026Leybold TRIVAC D16B 160141V150-1 Rotary Vane Vacuum Pump 1750RPM 230Vac (23635)
- €628May 18, 2026Leybold Trivac D30AC 2 Stage Rotary Vacuum Pump, 230/460V With GE 5K45SG1071B
- €581May 13, 2026Leybold TRIVAC D 16 B Pump 3/4HP D16B
- €5.580May 9, 2026(NEW) Leybold D25B Trivac Dual Stage Rotary Vane Vacuum Pump D25B-LVO210
- €9.765May 8, 2026SP VirTis AdVantage XL-70 Benchtop Freeze Dryer Lyophilizer w/ Leybold Trivac Pu
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- WSU251 / D-40 B
- Serial
- L91120017G
- Year (plate)
- 1991
- Model No.
- WSU251
- Catalog No.
- 91723-1
- Serial No.
- L91120017G
- Pump Fluid
- HE200
- Manufacturer
- Leybold Vacuum Products Inc
- Origin
- Made in USA
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. Make sure the model code ends in 'B' (= B-Variant with built-in gas-ballast valve). Check oil sight glass and that the exhaust filter is clean.