A Circulating Pump for Ultrapure or Toxic Gases

Abstract
A small, stainless steel, Roots-type pump for gases is described. The pump employs helium leak tight rotary seals which render it suitable for use in ultrahigh vacuum gas handling systems. A throughput (at atmospheric pressure) of 100 liters/min has been measured at 1800 rpm. At higher rpm's, the throughput is correspondingly larger.

This publication has 0 references indexed in Scilit: