scope:

This standard encompasses the design and performance requirements for 1-1/2, 2, 2-1/2, 3, 4, 6, and 8 inch nominal pipe size (NPS) Deluge and Preaction Sprinkler Systems for use in automatic sprinkler systems. Other sizes may be evaluated on a case-by-case basis. In cases where metric sized Deluge and Preaction Sprinkler Systems are to be examined for certification, test criteria comparable to the United States equivalent size shall be used.

Deluge and Preaction Sprinkler Systems are certified as complete systems, engineered by the manufacturer to be installed at the protected site with all necessary components. The sprinkler system piping is either open to atmosphere as in deluge systems or contains supervisory pressure as in preaction systems. Water flow to the sprinklers is controlled by an automatic water control valve, the requirements of which are described in Approval Standard Class 1020. The automatic water control valve opens and allows water to flow to the sprinklers in response to the action of various releasing devices in the valve trim and sprinkler piping.

This standard sets performance requirements for Deluge and Preaction Sprinkler Systems.

It is beyond the scope of this Standard to provide details of the various heat, smoke and other fire detection devices. See Section 1.8, Applicable Documents, for additional guidance.

Purpose

This standard states testing and certification requirements for Deluge and Preaction Sprinkler Systems.

Testing and certification criteria may include, but are not limited to: performance requirements, sprinkler system requirements, sprinkler system design, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance audit program.