Edwards · RV
Edwards RV8 — two-stage rotary vane, 6.9 cfm
Original title: Edwards RV8 6,9 cfm 2 Stufen Vakuumpumpe mit Armaturen Vakuumkammer Spülofen
📍 USA
🟢 Good fit
Excellent match for WAVE101/FD260; proven dual-stage design with strong specs.
Condition from photo
Exterior clean, no visible oil leaks, all inlet/outlet ports present, mounted on vibration isolator base.
Likely refurb / add-ons
- Oil change (Ultragrade 19, ~0.75 L): €35
- Exhaust filter replacement: €80
- Gas-ballast service 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
- ~6 m³/h
- Water-vapour tolerance
- ~50 g/h
- Ultimate vacuum
- ≤ 0.001 mbar
- Source
- eBay
- Listing #
- eBay #203310495658
- Last verified
- Jul 5, 2026
Fits WAVE machines: WAVE101, FD260
Price history— Edwards RV
Median €1.417 · 850 observations · €135–€162.750
Type plate (AI reading)
- Exact model
- RV8
- Peak Pumping Speed
- 6.9 cfm at 60 Hz
- Ultimate Pressure
- 1 × 10⁻³ mbar (2 × 10⁻³ mbar at 50 Hz)
- Noise level
- 48 dB(A)
- Connection
- Inlet NW25, Exhaust NW25
- Max water vapor inlet pressure
- 38 torr (50 mbar)
- Max water vapor capacity II
- 220 grams/hr
- Physical Data
- 57 lbs, 18.5 L × 6.2 W × 8.9 H in
- Electrical Supply
- 1 Ph, 100-120/200-230 VAC, 50/60 Hz
- Operating temperature range
- 12–40 °C
- Oil Capacity
- 0.75 L
- Oil Type
- Ultragrade 19
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.