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After the second world war, advertisers were looking for attractive signs that worked at night. Vacuum provided the answer – neon lighting. It was a revelation in the 1940s, adding some brightness after years of conflict.
The Edwards Diffstak vapour diffusion pumps are compact, water-cooled pumps with integral cooled baffles which provide exceptionally clean pumping. The proven design ensures very low backstreaming, reduced outgassing and minimized sealing requirements. These pumps are offered with integral manual or pneumatic high vacuum valves.