Standard Number: XF 79-2010(XF79-2010)
Chinese:消防球阀
English:Firefighting ball valves
Effective Date:2010-12-05
Standard Applicability:This standard applies to the delivery of water, foam mixture and other liquid extinguishing agent, medium temperature -40 ℃? 70 ℃ ball valve. This standard does not apply to the delivery of gas extinguishing agent, dry powder extinguishing agent ball valve.
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