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THE SPECIFICATION SECTION IN THE CONTRACT

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O U T L I N E G U I D E

[DIVISION 15: MECHANICAL]{.underline}

SECTION 15330 - WET PIPE FIRE SPRINKLER SYSTEMS

USE: Design, furnishing and installing a complete, hydraulically
calculated automatic wet pipe fire extinguishing sprinkler system for
the area of work under this contract.

**NOTES TO SPECIFIER:**

A. Options within paragraphs are identified by enclosure in brackets;
blank spaces enclosed by brackets \[[ ]{.underline}\] provide for
information to be inserted, as appropriate to individual projects.

B. **TO AVOID CONFLICTING REQUIREMENTS AND COSTLY MISTAKES,** the
specifier must edit (delete, substitute or add to the text). The
remaining paragraphs must be renumbered.

C. DELETE FOR FINAL COPY: Notes to the Specifier, located between lines
of asterisks; all \[brackets\], [underlining]{.underline}, **boldface,
**and *italics* within the paragraphs; and this page. (Open Reveal Codes
\[alt F3\] to do this accurately).

D. [To Edit "(Footer B)":]{.underline} (Corel 8). **ENTIRE FOOTER SHOULD
BE BOLDED. **Click in the footer and delete the "Project Name (ftr B)"
text and replace it with the **Name Of The Project (upper/lower case).**
Replace date with current MM/YY (WITHOUT BRACKETS).

E. The Guide Specifications are intended to be continuously reviewed and
revised. User's technical comments are appreciated. Also, other related
or similar specifications that are written "from scratch" that could
benefit others, or other questions can be sent to NSTC A/E Group, ST-110
or call (303) 987-6851.

F. DESIGN NOTES:

1\. **DRAWING DATA REQUIRED:**

**REVISIONS OF THIS SECTION:**

CSI format, editorial changes 4/00

Metric: Not Applicable

Technical Update: 4/00

SECTION 15330

WET PIPE SPRINKLER SYSTEMS

[PART 1: GENERAL]{.underline}

1.1 SUMMARY

A. Section Includes: Design, furnishing and installing a complete,
hydraulically calculated automatic wet pipe fire extinguishing sprinkler
systems for the area of work under this contract.

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LIST ITEMS OF WORK THAT MIGHT LOGICALLY BE FURNISHED AND INSTALLED UNDER
THIS SECTION, BUT INSTEAD ARE SPECIFIED IN ANOTHER SECTION. THIS ARTICLE
IS RARELY REQUIRED.

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B. Related Sections:

Testing of Piping Systems Section 02518

Supports and Anchors Section 15140

1.2 SUBMITTALS

A. General: Submittals shall be according to Section 01330 - Submittal
Procedures.

B. Manufacturer\'s Literature: Submit \[\_\_\_\_\] copies of the
manufacturer\'s descriptive data for the wet pipe fire sprinkler system
material to be used on this project. These submittals shall include:

1\. Piping

2\. Fittings

3\. Globe and angular valves

4\. O.S. & Y valves

5\. Butterfly Valves

6\. Flow Switches

7\. Automatic Sprinkler Heads

8\. Escutcheons

9\. Hangers

10\. Tamper Switches

C. Installation Instructions: Submit \[\_\_\_\_\] copies of the
manufacturer\'s installation instructions for the wet pipe fire
sprinkler system materials to be used on this project.

D. Shop Drawings: Shop Drawings: Submit \[\_\_\_\_\] copies of shop
drawings with same scale as the full size contract drawings. Shop
drawings shall show all details required by NFPA 13, 1991 - Automatic
sprinkler systems, Installation Working Plan\" in all areas with gypsum
board ceilings.

E. Hydraulic Data: Submit \[\_\_\_\_\] copies of the hydraulic
calculations for approval. Hydraulic calculations shall have the signed
stamp of a certified professional Fire Protection Engineer, certifying
that the fire sprinkler has been hydraulically calculated in compliance
with NFPA and governing codes.

F. Spare Parts Data: Submit \[\_\_\_\_\] copies of spare parts data for
each item of materials and equipment specified. the data shall include a
complete list of parts and source of supply not later than 2-weeks prior
to final inspection.

G. Certificates: Submit \[\_\_\_\_\] copies of written certification
from the supplier of the contractor furnished wet pipe fire sprinkler
system to be used on this project that it conforms to the requirements
of this specification section.

1.3 PROJECT RECORD DRAWINGS

A. Upon completion of the work, the Contractor shall revise all fire
protection shop drawings to agree with the construction as actually
accomplished and stamp \"As Built\". these drawings where no change is
involved shall be likewise stamped. These \"As-Built\" drawings shall
show the fire protection system as it exists at the completion of the
contract work.

[PART 2: PRODUCTS]{.underline}

2.1 GENERAL

A. Unless otherwise specified, all materials, valves and equipment used
in installation of the fire protection system shall be U.L. listed or
F.M. approved and shall be new and the standard product of a
manufacturer regularly engaged in the manufacture of the product. copper
piping is not to be used.

2.2 SPRINKLER HEADS

A. The style of automatic sprinkler heads (upright, pendant, sidewall,
or recessed) shall be as indicated in these specifications. Where
\"recessed\" system sprinklers are required by these specifications, no
part of the sprinkler shall extend more than one (1) inch below the
mounting surface. All sprinkler heads shall be ordinary temperature
rated unless otherwise required. All sprinkler heads shall be of
standard orifice type unless otherwise required. For exposed areas,
provide standard upright heads with brass finish. Install sprinklers
above suspended ceilings where required by NFPA-13.

2.3 PIPE AND PIPE FITTINGS

A. Pipe shall be calculated for 175 psig working pressure, conforming to
ASTM specifications and have manufacturer\'s name or brand, along with
the applicable ASTM standard, marked on each length of pipe. Pipe shall
be U.S. Manufacture, Schedule 40, black steel, ASTM A.120 Schedule 10
pipe shall not be allowed. all pipe shall be labeled for identification.
Schedule 40 pipe shall be joined by screwed joints, by welded joints or
by mechanical grooved couplings joined by a UL and FM approved
combination of couplings, gaskets and grooves. Grooves may be rolled or
cut and they shall be dimensionally compatible with the coupling. The
grooving of pipe shall be performed in the shop. The grooving of pipe in
the field shall not be allowed. Plain end or push on fittings or
couplings shall not be allowed. All black steel pipe shall be
preoxidized with a suitable protective coating. Screwed fittings shall
be cast iron, 125 lb. class; black or malleable iron, 150 lb. class.
Flanged fittings shall be cast iron, short body, Class 125. Gaskets
shall be full face of 1/8-inch minimum thickness red sheet rubber.
Flange bolts shall be hexagon head machine bolts with heavy
semi-finished hexagon head nuts, cadmium plated. Weld fittings shall be
steel, standard weight, black. grooved couplings and mechanical fittings
shall be malleable iron, 500 psi working pressure, in accordance with
ASTM A.47 and shall be tested and listed by UL and FM. All couplings and
mechanical fittings shall be of the same manufacturer. bushings and
reducing couplings shall not be allowed.

2.4 HANGERS

A. Hangers and hanger spacing shall be in accordance with NFPA-13.

2.5 BUTTERFLY VALVES

A. Shall be furnished with worm gear type indicating operator to assure
slow closing. Valves shall have a completely sealed shaft, integral
flange seals and hex drive.

2.6 0.S. & Y VALVES

A. Outside screw and yoke gate valves shall be of wedge disc type, shall
permit straight line flow and complete shut-off, and shall permit
straight line flow and complete shut-off, and shall be designed that the
valves can be packed under pressure when wide open. Valve shall be iron
body, bronze-trim, flanged ends, with rising stem and 175 psi working
pressure.

2.7 CHECK VALVES

A. Three inch and larger check valves shall be iron body and bronze
trim, flanged or grooved connections, 3/4-inch FPT drainage taps, and
175 psi working pressure. Wafer type check valves and check valves
smaller than three inches shall be U.L. listed or F.M. approved.

2.8 GLOBE AND ANGLE VALVES

A. Valves shall be furnished with renewable disc, and shall back seat in
the fully opened position to allow repacking under full pressure without
removing the valve from the line. Valve shall be rated for 175 psi
working pressure.

2.9 VALVE SUPERVISORY SWITCHES

A. All valves 2-inches or larger which control water to automatic
sprinkler heads shall be equipped with supervisory switches having one
normally open contact and one normally closed contact.

2.10 FLOW SWITCHES

A. All flow switches shall be field adjustable vane type with pneumatic
retard and 175 psi working pressure. Units shall be suitable for
installation by drilling pipe and securing with U-bolt furnished with
the switch. Units shall be double pole double throw, suitable for 24
volt DC service with two normally open contacts and two normally closed
contacts. Waterflow switches shall be adjusted so that the device will
transmit a water flow alarm within 30-seconds of opening the inspectors
test valve on the sprinkler system.

2.11 ALARM FACILITIES

A. Equipment necessary to accomplish a local waterflow signal, one
transmitted coded waterflow signal and a local trouble alarm for each
supervisory system shall be installed. Main and branch shut-off valves
shall be electrically supervised. Any tamper proof switches require for
testing the sprinkler system shall be furnished.

2.12 TRANSMISSION OF ALARM SIGNALS

A. Alarm signal wiring shall be connected to the building fire alarm
control.

2.13 TEST AND STATUS CONNECTIONS

A. Furnish and install inspectors test connection consisting of a 1-inch
globe valve and 1-inch x ½-inch restricting sight glass, connect to
express drain.

2.14 SMOKE DETECTORS

A. Shall operate on 120V with battery back-up, each alarm shall be
tested by the Contractor to ensure it\'s correct operation.
Malfunctioning units shall be corrected and retested by the Contractor
to demonstrate compliance with the specifications.

2.15 MISCELLANEOUS

A. Control Valve Signs: The Contractor shall provide a description sign,
minimum dimensions 7-inches x 9-inches, for every valve in the sprinkler
system which controls water to sprinkler heads. Signs shall be single
faced, white letters on a red background, with a space designating who
to notify if valve needs to be closed. Signs shall be fastened to each
valve with lightweight chains.

B. Miscellaneous Signs: These signs for alarm test valves, main drains,
auxiliary drains, etc. shall have a minimum dimension of 2-inches x
6-inches. Signs shall be single faced, white letters on a red
background. Each sign shall be fastened to each valve with lightweight
chain.

[PART 3: EXECUTION]{.underline}

3.1 PREPARATION

A. The Contractor shall investigate the structural and finish conditions
affecting the work and shall arrange his work accordingly, provide such
fittings, valves and accessories as may be required. to meet such
conditions governing his work at the building. Materials shall not be
fabricated or delivered to the site before the approved shop drawings
have been received by the Contractor.

3.2 FIRE PROTECTION SYSTEM EXECUTION

A. The latest revisions of the following codes, standards, and other
items (as the date of the contract drawings) shall be considered a part
of these specifications, the same as if fully set forth herein and shall
be adhered to unless specific deviations are included in these
specifications.

NFPA 13 - Sprinkler System Installation

NFPA 13A - Sprinkler System Maintenance

NFPA 14 - Standpipe and Hose System

NFPA 13 - Water Supply Flow Test

NFPA 13 - Hydraulic Calculations

NFPA 24 - Water Supply Installation

3.3 INSTALLATION

A. The Contractor shall perform the work in a professional workmanlike
manner, according to the best practices of the trade. all sprinkler
piping must be substantially supported from the building structure and
only approved hangers shall be used. Sprinkler piping in all areas with
suspended ceilings shall be concealed unless otherwise noted on the
contract drawings. Any deviations found necessary shall be immediately
brought to the attention of the Contracting Officer. All piping
discharging outside (main drains, inspectors tests pipes) shall do so on
paved surfaces or on splash blocks. Coordinate installation with the
work of all other trades.

B. The interior surfaces of all piping and equipment shall be clean and
free of all dirt, loose scale, rust and other foreign material before
installation. All sprinkler piping with welded outlets or connections
shall free of welding slag and cut-outs. Welded fittings shall not
protrude into the path of the waterflow. The Contracting Officer\'s
Representative shall inspect pipe prior to installation.

C. Risers, feed, cross and branch lines may be shop welded using
approved welding fittings. Welding and brazing shall conform to the
standards as set forth in NFPA-13. Welding and torch cutting shall not
be permitted as a means of installing or repairing sprinkler systems.

D. All piping penetrating thru floors, walls, partitions, and ceilings
shall be grouted and sealed with non-combustible mastic to provide the
required fire rating. Chrome-plated escutcheons shall be provided where
exposed piping passes thru finished floors, walls, partitions, and
ceilings. Secure plates to pipe with set screws or spring clips.

E. All sprinkler heads shall be in alignment, and parallel to ceiling
features, walls, etc. The Contractor shall provide one (1) spare
sprinkler cabinet complete with sprinkler wrench suitable for each head
type, and three sprinklers of assorted temperature ratings of the type
necessary in use throughout each system at each main riser.

F. The Contractor shall be responsible for the removal and replacement
of ceilings; the providing of ceiling access panels to all valves
located above finished ceilings; and the cutting, patching and
restoration of finishes.

3.4 TESTING

A. All new fire protection shall be acceptance tested by the Contractor.
tests shall consist of hydrostatic and operations testing and shall be
performed in strict accordance with the requirements of NFPA-13. A test
pressure of 200 psi shall be held for a continuous period of two (2)
hours with no drop in pressure. Each system (all associated piping and
alarms) shall be tested and accepted as a complete unit , with data
recorded on an approved \"Contractor\'s Material and Test Certificate\".
System pressure tests shall be against a blank test flange and not
against a valve seat.

B. All tests shall be conducted in the presence of the Contracting
Officer. Any system failing to meet the specified test requirements
shall be corrected and retested until the test requirements are met.

C. The Contractor shall notify the Contracting Officer upon completion
of the installation of all pipe. The Contracting Officer will schedule
an inspection of the installed pipe. The inspection and any changes
required by this or any inspection shall be made prior to the above
testing.

D. Flush lines in accordance with instructions outlined in NFPA-13.

3.5 MAINTENANCE AND OPERATIONAL INSTRUCTIONS

A. System description, system theory of operation, and system final
inspection and acceptance documents of the completed system (as built)
shall be submitted in a bound book (4 copies) to the Base Engineer. the
maintenance manuals and instructions shall include a brief description
of the type of system installed, routine-type work defined by
step-by-step instructions that should be performed to ensure long life
and proper operations, and the recommended frequency of performance. The
instructions shall also include possible trouble spots with diagnosis
and correction of each. The theory of operation brochures shall describe
the function of each component of subassemblies in block diagram-type
presentation to a degree that craftsman will understand the system well
enough to operate and maintain it.

3.6 PROTECTION

A. Protect all apparatus, fixtures, materials, equipment and
installations so as to prevent damage as a result of new work.
Contractor shall replace a no cost increase to the contract sum any item
which is marred, defaced, broken, or damaged in any way, prior to the
date of final inspection.

[PART 4: MEASUREMENT AND PAYMENT]{.underline}

4.1 METHOD OF MEASUREMENT

A. Units: the work described in this section will not be measured for
payment.

4.2 BASIS OF PAYMENT

A. Payment: No direct payment for the work described under this section
will be made. The Contractor shall include consideration for this item
in the bid price for other items of the Contract.

END OF SECTION