Uponor AquaSAFE, Installation Manual

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Standalone sprinkler system overview
Uponor AquaSAFE products may also be installed as a
standalone sprinkler system as allowed by NFPA 13D. Standalone
fire sprinkler systems utilize the same individually heat-
activated fire sprinklers as in multipurpose systems, but they
are supplied by completely separate piping serving only the
fire sprinklers. Standalone sprinkler systems typically require
backflow prevention because the water in the sprinkler piping
is stagnant. NFPA 13D requires the water supply for PEX-based
standalone systems to be limited to 80 psi (5.5 bar) or less. If
the maximum static pressure of the water supply is more than
80 psi (5.5 bar), a pressure-reducing valve may be employed
to limit the pressure but an automatic means of pressure relief
must be installed on the sprinkler system piping.
As with multipurpose systems, Uponor PEX and ProPEX fittings
may not be used on standalone systems with a fire department
connection.
Backflow prevention requirements
With non-stagnant multipurpose fire sprinkler and plumbing
systems, backflow prevention devices are not typically required.
Check local code for any applicable backflow requirements.
Backflow prevention may be required with standalone systems.
AquaSAFE system components
Uponor AquaPEX piping
Uponor AquaPEX piping is an installation-friendly construction
product. The flexibility of Uponor AquaPEX allows the installer
to eliminate many of the joints normally required with a
rigid piping system—saving installation time and expense.
Uponor recommends the procedures outlined in this section
to simplify installation.
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