SynC · Topic

Dry Pipe Sprinklers

Sprinkler systems that hold air in the piping until a head opens, suited to freezing areas.

Standards1

These are the standards in SynC Standards that cover Dry Pipe Sprinklers. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide, with the standards each is verified against. All of it is written and maintained by SynC, free to read without an account, and published under CC BY 4.0.

A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.

Standards

  • Dry-Pipe Fire Sprinkler Systems

    Automatic dry-pipe sprinkler systems designed to NFPA 13, in which the piping downstream of a dry-pipe valve is held under supervisory air or nitrogen because the piping is exposed to freezing. Covers the decisions that exist only on a dry system: the dry-pipe valve and its trim, the quick-opening device, the supervisory gas source and its pressures, water delivery time, pitch and low-point drainage, the corrosion consequences of a wet-and-dry pipe interior, the provisions for piping in refrigerated spaces, and the trip test and 24-hour air leakage test that prove the installation.

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