Rotolock valve

A service valve is a valve used to separate one piece of equipment from another in any system where liquids or gases circulate.[1] Two types of service

Rotolock valve

A service valve is a valve used to separate one piece of equipment from another in any system where liquids or gases circulate.[1] Two types of service valves are marketed: the Schrader-type valve and the stem-type service valve.[2] Specialized versions are made for specific purposes, such as the Rotolock valve (a stem-type valve also called a Rotalock valve [3]), which is a special refrigeration valve with a teflon ring seated against a machined surface enclosed by a threaded fitting; this valve allows the technician to remove all refrigerant from the compressor without requiring removal of the system charge.

References

  1. ^ Thompson, John (2007). Plumbing Illustrated Dictionary. Heinemann. p. 243. ISBN 9780435402082. Retrieved 18 January 2013.
  2. ^ Knowles, Don; Erjavec, Jack (2004). TechOne: Basic Automotive Service and Maintenance. Cengage Learning. p. 400. ISBN 9781401852085. Retrieved 18 January 2013.
  3. ^ American Society of Refrigerating Engineers (1958). "Rotalock valve". Refrigerating Engineering. 66–67 (2): 24. Retrieved 14 January 2013.


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