Edwards’s range of high throughput diffusion pumps have many advantages in industrial applications. The pumps, in back to back testing, are comparable to the best leading competition but also incorporating the above benefits. To offer even higher pumping speeds, of up to 45000 m3h-1 at pressures intermediate between mechanical boosters and diffusion pumps Edwards can supply our industrially proven vapour booster pumps.
A constant program of updates and improvements, with input from OEM’s and end users, ensures that the vapour boosters always meet the requirements of the industry. This combined with inherent reliability, ease of use, ease of maintenance and tolerance to a wide range of inlet and exhaust pressures means they have been used extensively in metallurgy and coating industries as well as many other specialist applications.
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.
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.
Vapour Booster pumps offer higher pumping speeds, of up to 15 000 ls-1 at pressures intermediate between mechanical boosters and diffusion pumps. Vapour boosters from Edwards have been proven in the field for over 30 years. With a constant program of updates and modernisation, with input from OEM’s and end users, combined with inherent reliability, ease of use and tolerance to various inlet and exhaust pressures they have been used extensively In metallurgy and coating industries as well as other specialist applications.
The HT high throughput series is the pinnacle of our diffusion pump knowledge with technology aimed specifically at industrial users. Edwards diffusion pump is designed for all light and heavy duty industrial applications. The robust construction gives high pumping speed at high pressure. The cast and machined aluminium interior provides consistent performance, while the stainless steel body prevents corrosion and ensures process cleanliness.
HT diffusion pumps can get minimum backing pump displacement for maximum through put from 135 m3h-1 to 250 m3h-1 and ultimate vacuum to 5 x 10-7 mbar.
