Inexpensive cryogenic pressure-vacuum valve

✍ Scribed by A.S. Greenberg; G. Armstrong

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 45 KB
• Volume: 18
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(78)90145-5

✦ Synopsis

We have tested and utilLzed a bellows type valve that reltably conlrols hqu=d helium, and we have also lasted Ihts value al 77 K for controlling Ilow at pressures cwer O.q x I(.