Scientific and R&D applications require special vapour pumps and accessories. It is important to minimise any backstreaming of the vapour pump fluid, and the number of elastomer seals used in system design needs to be kept to a minimum, to give clean pumping with minimal outgassing. For bench-top or transportable instruments, compact air-cooled pumps are essential. Edwards offers a range of vapour pumps and accessories which are designed to meet these needs. They are supplied in two types: standard, and unvalved (C-collar model pumps). The Edwards Diffstak 63 (ISO 63 inlet), 100 (ISO100 inlet), 160 (ISO160 inlet), 250 (ISO250 inlet), design has been proven over many years with thousands of pumps installed. For example Santovac® 5  have ultimate pressure 5 × 10‑9 mbar.


Click here to download the PDF file: Vapour Pumps

Vapour Pumps


Features and Benefits

  • Integral high vacuum valves and water-cooled baffles which are supplied as either manually operated (M-model pumps) or pneumatically operated (P-model pumps)
  • For systems requiring the highest possible ultimate vacuum or for those which do not need a high vacuum valve
  • Both M-model and P-model pumps have inlet flanges which are compatible with ISO flanges
  • M‑model pumps have a manually operated high vacuum valve
  • P-model pumps have a pneumatically operated high vacuum valve


  • Vacuum metallurgy
  • Distillation, drying and degassing
  • Thin film coating and metalizing
  • Large-scale research


NOTE! This site uses cookies and similar technologies.

If you not change browser settings, you agree to it.

I understand