Edwards · RV
Edwards RV8 — rotary vane, 6 m³/h
Original title: RV8 [Operation Tested] RV Rotary Vacuum Pump EDWARDS
📍 Japan
Suitability for 1 × FD440
Not suitableItem type
Complete pump
Technical
Insufficient
Condition
Not evidenced
Data
Type plate + model
🟢 Good fit
Excellent match for WAVE101 and FD260 freeze dryers.
Condition from photo
Exterior clean, no visible oil leaks, labels intact, motor housing and pump body in good cosmetic condition.
Likely refurb / add-ons
- Oil change and filter service (~€80)
- Gas-ballast service (~€60)
- Soft-starter module (~€280)
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Pumping speed
- ~6 m³/h
- Water-vapour tolerance
- ~50 g/h
- Ultimate vacuum
- ≤ 0.001 mbar
- Source
- eBay
- Listing #
- eBay #365688648176
- Last verified
- Aug 5, 2026
Fits WAVE machines: WAVE101, FD260
Source: official manufacturer · product page: product family · EN · link checked Aug 5, 2026
Price history— Edwards RV
Exact model: RV8
Median €1.636 · 131 cleaned observations · €388–€4.242
Type plate (AI reading)
- Exact model
- RV8
- Serial
- 037648335
- Code No.
- A654-01-904
- Weight
- 27 kg
- Manufacturer
- Edwards High Vacuum International (part of B.O.C. Ltd), Craw
- Approvals
- CE, CSA, NRTL/C
- Certification
- L R 105041
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 rotary vane with gas-ballast. Check oil colour through sight glass (clear amber = healthy, milky = water contamination) and that the gas-ballast knob turns freely.
Manufacturer datasheet — Edwards RV
- Bauart
- Zweistufige ölgedichtete Drehschieberpumpe
- Saugvermögen (50 Hz)
- 3.3 / 6.2 / 9.0 / 14.4 m³/h (RV3 / 5 / 8 / 12)
- Enddruck (ohne Gasballast)
- ≤ 1.5 × 10⁻³ mbar
- Enddruck (mit Gasballast)
- ≤ 5 × 10⁻² mbar
- Wasserdampfverträglichkeit
- skaliert mit Pumpgröße
- Motorleistung
- 0.25 – 0.55 kW
- Ölsorte
- Edwards Ultragrade 19/20
- Ölfüllung
- 0.4 – 1.0 l
- Hersteller
- Edwards Vacuum
Curated from the manufacturer's official datasheet for this family / model. The specific pump may vary slightly by variant.
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.