ANSI Z21.21-2000/CSA 6.5-2000
Automatic Valves for Gas Appliances
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détails du produit
standard applies to automatic valves which may be individual automatic valves or valves utilized as part of an automatic gas ignition system. This standard also applies to commercial/industrial safety shutoff valves. This standard does not apply to self-contained water heater, cooking appliance or room heater thermostats or self-contained automatic gas shutoff valves for hot water supply systems. This standard applies to automatic valves having maximum operating gas pressure ratings of ½, 2, 5 psi (3.5, 13.8, 34.5 kPa), or higher than 5 psi (34.5 kPa) in 5 psi (34.5 kPa) increments up to and including a maximum operating pressure of 60 psi (413 kPa).