Used Vacuum Pumps›Leybold›Dryvac
Leybold · Dryvac
Leybold Ruvac WH4400 & Dryvac DV650 — screw pump, 450 m³/h
Original title: Leybold Ruvac WH 4400 & Dryvac DV 650 40HP Combination Vacuum Pump 460V
📍 USA
Suitability for 1 × FD440
Not verifiedItem type
Not confirmed
Technical
Cannot calculate
Condition
Not evidenced
Data
Family only
🔴 Check carefully
Oversized and overpriced for IC570MAX; suitable but requires expert assessment.
Condition from photo
Exterior shows surface corrosion, dust accumulation, and weathering. Oil level and internal wear cannot be assessed from photos. Mounting frame intact.
Likely refurb / add-ons
- Oil change & filter service — €150
- Exhaust filter replacement — €80
- Soft-starter or VFD retrofit — €280–€600
Watch out for
- Price (€20,812) is 2–11× median for this family (€1,863); verify condition and p
- Combination unit (WH4400 + DV650) may be oversized for IC570MAX; confirm compati
- Visible corrosion and dust suggest outdoor or uncontrolled storage; internal con
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Dry screw
- Year
- 2022 (per nameplate)
- Source
- eBay
- Listing #
- eBay #117111855463
- Last verified
- Jul 6, 2026
The Dryvac family is recognised, but the exact variant is not supported. Model-specific performance and water-vapour figures from Dryvac DV450 are therefore withheld.
Source: official manufacturer · product page: product family · EN · link checked Aug 5, 2026
Price history— Leybold Dryvac
Family: DryvacExact model is not supported by the listing or type plate.
Median €7.500 · 40 cleaned observations · €1.460–€11.625
Recent sales (Leybold Dryvac)
- €1.860May 22, 2026Leybold Inc., 50 B, Dry Vacumn Pump, "DryVac",Type: 50 B,Cat # 13830, NOT Tested
- €1.863May 12, 2026LEYBOLD Exhaust Silencer For Screwline SP 630, DryVac DV 1200 119001
- €11.625Nov 3, 2025Leybold DRYVAC DV 650 Dry Compressing Vacuum Pump with Inlet Filter & Silencer
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- WH4400, IP66, DV650
- Serial
- 31002461159
- Year (plate)
- 2022
- Volts
- 460 V
- Phase
- PH3
- Frequency
- HZ60
- Running Current
- 48 A
- Part Number
- S6644A004
- Type of System
- WH4400, IP66, DV650
- Date of Assembly
- 6/2022
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Heavy industrial dry-screw with integrated Roots booster. Drives large industrial freeze dryers. Insist on service-history documentation before buying used.
Traceable assessment
How each pump is assessed
AI helps read images and listing text. The final suitability result is calculated by a fixed engineering rule using evidenced values.
Method version: 5 August 2026
- 1
Identify the item
The title and photos are checked first to confirm that the listing is a complete vacuum pump — not an accessory, spare part or pump head only.
- 2
Establish evidence
The type plate and listing provide specific facts. Manufacturer values are used only for a confirmed model; family-level values stay clearly labelled.
- 3
Compare engineering data
Pumping speed, water-vapour capacity and ultimate pressure are compared with the selected WAVE machine and the chosen safety margins.
- 4
Assess condition separately
A photo or a seller saying “runs” does not replace a vacuum test. Unknown data remain unknown and never become an automatic green recommendation.