Used Vacuum Pumps›Edwards›Other
Edwards · Other
Edwards Diffstak 160 — oil diffusion pump, rotary backing
Original title: Edwards Diffstak 160 Vapour Diffusion Pump Rig w/ Pressure Gauge
📍 United Kingdom
🔴 Check carefully
Diffusion pump unsuitable as primary WAVE vacuum source; requires mechanical backing pump.
Condition from photo
Externally clean, control panel legible, hoses present, no visible oil leaks or corrosion observed.
Likely refurb / add-ons
- Backing pump (rotary vane, 2–5 m³/h) — €400–800
- Diffusion pump oil (Santovac 5 or equivalent, ~2 L) — €80–120
- Cold trap / baffle assembly — €150–300
Watch out for
- Diffusion pump is a two-stage system requiring a separate mechanical backing pum
- No backing pump visible in photos; system incomplete without one.
- Diffusion pumps are obsolete for modern freeze-drying; rotary vane or screw pump
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- other
- Pumping speed
- ~0 m³/h
- Water-vapour tolerance
- ~0 g/h
- Ultimate vacuum
- —
- Source
- eBay
- Listing #
- eBay #257546047402
- Last verified
- Jul 5, 2026
Price history— Edwards Other
Median €2.688 · 820 observations · €303–€33.328
Type plate (AI reading)
- Exact model
- Diffstak 160
- Manufacturer
- Edwards
- Type
- Rotary Diffusion
- Gauge
- Pirani 10 (0–10⁻¹ torr)
- Mains
- Visible on control panel (three indicator lights)
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Generic Edwards vacuum pump — model family not auto-detected. Send us the listing URL for a free identification + suitability check.