Used Vacuum Pumps›Edwards›Other
Edwards · Other
Edwards R12 — rotary vane pump, oil-sealed
Original title: Edwards R12 Rotary Vane Pump
📍 USA
Suitability for 1 × FD440
Not suitableItem type
Not confirmed
Technical
Cannot calculate
Condition
Not evidenced
Data
Family only
🟡 OK with refurb
Suitable for WAVE freeze dryers; typical refurbishment needed before use.
Condition from photo
Exterior shows age and dust accumulation; finned housing intact, oil level unclear, no visible leaks or damage.
Likely refurb / add-ons
- Oil change and filter service — €80
- Exhaust filter replacement — €60
- Soft-starter (optional, extends motor life) — €280
Watch out for
- No visible nameplate or model confirmation in photos; R12 designation unverified
- Age and dust suggest extended storage; internal wear cannot be assessed from ext
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- other
- Source
- eBay
- Listing #
- eBay #127890763464
- Last verified
- Jun 23, 2026
The Other family is recognised, but the exact variant is not supported. Model-specific performance and water-vapour figures from Other Edwards are therefore withheld.
Price history— Edwards Other
Family: OtherExact model is not supported by the listing or type plate.
Median €2.552 · 827 cleaned observations · €300–€15.345
What to look for on this family
Generic Edwards vacuum pump — the exact model family was not detected automatically. Suitability remains unverified until the model or type plate is clear.
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.