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NOTE: For projects administered by the Pacific
Division, Naval Facilities Engineering Command and
Engineering Field Activity Cheasapeake, include the
following optional paragraph requiring the minimum
qualification of a NICET Level-III technician for
preparation of all fire protection system drawings.
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[Qualifications of System Technician: Installation drawings, shop drawing
and as-built drawings shall be prepared, by or under the supervision of, an
individual who is experienced with the types of works specified herein, and
is currently certified by the National Institute for Certification in
Engineering Technologies (NICET) as an engineering technician with minimum
Level-III certification in automatic sprinkler system program. Contractor
shall submit data for approval showing the name and certification of all
involved individuals with such qualifications at or prior to submittal of
drawings.]
PART 2
PRODUCTS
2.1
ABOVEGROUND PIPING SYSTEMS
Provide fittings for changes in direction of piping and for connections.
[Make changes in piping sizes through tapered reducing pipe fittings;
bushings will not be permitted.] Perform welding in the shop; field
welding will not be permitted. Conceal piping in areas with [suspended
ceiling] [and] [_____].
2.1.1
Sprinkler Piping
NFPA 13, except as modified herein. [Steel piping shall be Schedule [10]
[or] [40] for sizes less than 200 mm 8 inches, and may be Schedule [10]
[30] [or] [40] for sizes 8 inches 65 mm and larger.] Fittings into which
sprinkler heads, sprinkler head riser nipples, or drop nipples are threaded
shall be welded, threaded, or grooved-end type. Plain-end fittings with
mechanical couplings and fittings which use steel gripping devices to bite
into the pipe when pressure is applied will not be permitted. Rubber
gasketed grooved-end pipe and fittings with mechanical couplings shall be
permitted in pipe sizes 40 mm 1.5 inches and larger. Fittings shall be UL
Fire Prot Dir listed or FM P7825 approved for use in dry pipe sprinkler
systems. Fittings, mechanical couplings, and rubber gaskets shall be
supplied by the same manufacturer. Steel piping with wall thickness less
than Schedule 30 shall not be threaded. Steel piping shall be galvanized.
[Sprinkler pipe and fittings shall be metal.]
2.1.2
Sprinkler Heads
Provide nominal 15 mm 0.50 inch [or 20 mm 0.53 inch] orifice [standard]
[quick] [_____]response sprinkler heads. No o-rings will be permitted in
sprinkler heads. Release element of each head shall be of the [ordinary]
[intermediate] [_____] temperature rating or higher as suitable for the
specific application. Provide polished stainless steel ceiling plates or
chromium-plated finish on copper alloy ceiling plates, and chromium-plated
pendent sprinklers below suspended ceilings. [Provide corrosion-resistant
sprinkler heads and sprinkler head guards as required by NFPA 13.]
Automatic sprinklers installed in the pendent position shall be of the
dry-pendent type [except that standard pendent sprinklers may be installed
SECTION 13935N
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