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Full Description

Details test and examination criteria for individual automatic valves, valves utilized as parts of automatic gas ignition systems, or the automatic valve functions of combination controls, which have maximum operating pressure ratings of 1/2 psi, 2 psi, 5 psi, or higher than 5 psi in 5 psi increments up to and including a maximum operating pressure of 60 psi.
 

Document History

  1. CSA 6.5:23/ANSI Z21.21:23


    Automatic valves for gas appliances

    • Most Recent
  2. CSA 6.5:19/ANSI Z21.21:19


    Automatic valves for gas appliances, Includes Update No. 1 (2021)

    • Historical Version
  3. CSA ANSI Z21.21-2015/CSA 6.5-2015


    Automatic Valves for Gas Appliances

    • Historical Version
  4. CSA ANSI Z21.21-2012/ CSA 6.5-2012


    Automatic Valves for Gas Appliances

    • Historical Version
  5. CSA ANSI Z21.21-2005/CSA 6.5-2005


    Automatic Valves for Gas Appliances

    • Historical Version
  6. CSA ANSI Z21.21-2000/6.5-2000

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    Automatic Valves for Gas Appliances

    • Historical Version
  7. CSA ANSI Z21.21-1995


    Automatic Valves for Gas Appliances

    • Historical Version
  8. CSA ANSI Z21.21-1995


    Automatic Valves for Gas Appliances

    • Historical Version
 

Amendments, rulings, supplements, and errata

  1. CSA ANSI Z21.21a-2010/CSA 6.5a-2010


    Addenda 1 to ANSI Z21.21-2005/CSA 6.5-2005, Automatic valves for gas appliances

  2. CSA ANSI Z21.21a-2000/6.5a-2000


    Automatic Valves for Gas Appliances