​SECTION 21 10 00




P A R T   1 - G E N E R A L



This section contains specifications for fire suppression pipe and pipe fittings for this project.  Included are the following topics:





              Related Work


              Reference Standards

              Shop Drawings

              Quality Assurance

              Delivery, Storage, and Handling

              Design Criteria

              Welder Qualifications


              Fire suppression Piping

              Unions and Flanges

              Mechanical Grooved Pipe Connections

Sprinkler Heads

Flexible Sprinkler Drop Fittings

              Flow Switches

              Pressure Switches

              Local Alarm       

Pressure Gauges


              Specialty Valves

              Hose Outlet Valves

              Fire Hoses

              Fire Department Connection

              Fire Pump Test Connection

              Air Compressor

              PART 3 – EXECUTION




              Copper Pipe Joints

              Welded Pipe Joints

              Threaded Pipe Joints

              Mechanical Grooved Pipe Connections

              Unions and Flanges

              Piping System Leak Tests

              Underground Water Main Flushing


              Construction Verification Items



Section 21 08 00 – Commissioning of Fire Suppression

Section 21 05 00 – Common Work Results for Fire Suppression

Section 21 05 29 – Hangers and Supports for Fire Suppression Piping and Equipment


Applicable provisions of Division 1 govern work under this section.



ANSI A21.4

ANSI A21.11

ANSI A21.51

ANSI B16.1         Cast Iron Pipe Flanges and Flanged Fittings

ANSI B16.3         Malleable and Ductile Iron Threaded Fittings

ANSI B16.4         Cast Iron Threaded Fittings

ANSI B16.5         Pipe Flanges and Flanged Fittings

ANSI B16.9         Factory Made Wrought Steel Buttweld Fittings

ANSI B16.11       Forged Steel Fittings, Socket Welded and Threaded

ANSI B16.18       Cast Bronze Solder Joint Pressure Fittings

ANSI B16.22       Wrought Copper and Wrought Copper Alloy Solder Joint Pressure Fittings

ANSI B16.29       Wrought Copper and Wrought Copper Alloy Solder Joint Drainage Fittings - DWV

ASTM A53          Pipe, Steel, Black and Hot-Dipped, Zinc Coated Welded and Seamless

ASTM A105        Forgings, Carbon Steel, for Piping Components

ASTM A126        Gray Cast Iron Castings for Valves, Flanges, and Pipe Fittings

ASTM A135        Electric Resistance Welded Steel Pipe

ASTM A181        Forgings, Carbon Steel for General Purpose Piping

ASTM A234        Pipe Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and Elevated Temperatures

ASTM A536        Ductile Iron Castings

ASTM A795        Black and Hot Dipped Zinc Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use

ASTM B88          Seamless Copper Water Tube

AWS A5.8           Brazing Filler Metal

AWS D10.9         Qualification of Welding Procedures and Welders for Piping and Tubing, Level AR3

NFPA 13              Installation of Sprinkler Systems. (Latest prevailing edition)

NFPA 14              Installation of Standpipe and Hose Systems. (Latest prevailing edition)

UL                        Underwriters' Laboratories Listing

FM                       Factory Mutual Approval



Schedule from the contractor indicating the ANSI/ASTM specification number of the pipe being proposed along with its type and grade, if known at the time of submittal, and sufficient information to indicate the type and rating of fittings for each service.


Substitution of Materials:  Refer to Section GC – General Conditions of the Contract, Equals and Substitutions.

Order steel pipe with each length marked with the name or trademark of the manufacturer and type of pipe; with each shipping unit marked with the purchase order number, metal or alloy designation, temper, size, and name of supplier.

Any installed material not meeting the specification requirements must be replaced with material that meets these specifications without additional cost to the Owner.



Promptly inspect shipments to ensure that the material is undamaged and complies with specifications. 

Cover pipe to prevent corrosion or deterioration while allowing sufficient ventilation to avoid condensation.  Do not store materials directly on grade.  Protect pipe, tube, and fitting ends so they are not damaged.  Where end caps are provided or specified, take precautions so the caps remain in place.  Protect fittings, flanges, and unions by storage inside or by durable, waterproof, above ground packaging.

Offsite storage agreements will not relieve the contractor from using proper storage techniques.

Storage and protection methods must allow inspection to verify products.


Use only new material, free of defects, rust and scale, and meeting the latest revision of ASTM specifications as listed in this specification.

Construct all piping systems for the highest pressures and temperatures in the respective system but not less than 175 psig.

Where weld fittings are used, use only long radius elbows having a centerline radius of 1.5 pipe diameters.

Where mechanical grooved fittings are used, use only ASTM standard radius fittings, short radius grooved fittings are not allowed.

Where ASTM A53 or A795 type F pipe is specified, grade A type E or S, or grade B type E or S may be substituted at Contractor's option.  Where ASTM A135 grade A pipe is specified, grade B pipe may be substituted at Contractor's option.  Where the grade or type is not specified, Contractor may choose from those commercially available.

Where ASTM B88, type L H (drawn) temper copper tubing is specified, ASTM B88, type K H (drawn) temper copper tubing may be substituted at Contractor's option.


Welding procedures, welders, and welding operators for all building service piping to be in accordance with certified welding procedures of the National Certified Pipe Welding Bureau and Section 927.5 of ASME B31.9 Building Services Piping or AWS 10.9 Qualification of Welding Procedures and Welders for Piping and Tubing. Before any metallic welding is performed, Contractor to submit his Standard Welding Procedure Specification together with the Procedure Qualification Record as required by Section 927.6 of ASME B31.9 Building Services Piping.

Welder certifications are required to be renewed every three years.  If qualification papers are needed on a project, verify that they are current.

The Architect or Engineer reserves the right to test the work of any welder employed on the project, at the Owner's expense.  If the work of the welder is found to be unsatisfactory, the welder shall be prevented from doing further welding on the project and all defective welds replaced.

P A R T   2 - P R O D U C T S


Steel Pipe:

Black steel pipe welded and seamless, Type F, Grade A, ASTM A53; black welded and seamless steel pipe for fire protection use, Type F, ASTM A795; electric resistance welded steel pipe, Grade A, ASTM A135.

Pipe wall Thickness:

Threaded pipe shall have a minimum wall thickness of schedule 40.

All other pipe shall have a minimum wall thickness of schedule 10.

Piping 2” and under shall be minimum schedule 40 unless stated otherwise herein.

1 ½” and 2” schedule 10 may be allowed on a case by case basis for areas where the piping is exposed, and the sprinkler heads are attached directly to the pipe, similar to a storage warehouse or service garage. This must be confirmed with Project/Construction Mgr.

Fittings: Cast iron threaded fittings, Class 125 or 250, ASTM A126/ANSI B16.4. Malleable and ductile iron threaded fittings, Class 150 or 300, ASTM A197/ANSI B16.3. Standard weight seamless carbon steel weld fittings, ASTM A234 grade, ANSI B16.9. Mechanical grooved fittings with EPDM gaskets, ASTM A536 ductile iron, ASTM A47 malleable iron or ASTM A53 fabricated steel. For wet pipe systems mechanical tee fittings with full iron back equal to Grinnell Figure 730 will be allowed only as needed for connection to existing systems. Outlets for drypipe and preaction systems shall be mechanical tees. Mechanical tees with U-bolt back or other fastening means are not allowed.

Mechanical tees may be used for other applications where it makes sense.  Consult with Project/Construction Mgr.

Welding Materials: Comply with Section II, Part C, ASME Boiler and Pressure Vessel Code for welding materials.

Finish: Hot dipped zinc coated (galvanized) finish on piping and fittings shall be used in drypipe and pre-action systems, piping exposed to weather and piping exposed to corrosive environments where indicated. Thread or grooved hot dipped zinc coated pipe ends for fitting connections. Indoor dry standpipe systems supplied by a Fire Dept. connection only may be black steel piping and fittings.

Black steel pipe should be used when nitrogen is used for the system supervisory gas.


Plastic pipe and fittings will not be allowed for this project.


Seamless Red Brass pipe, ASTM 43, regular weight (Schedule 40), with ASTM B584 threaded copper alloy pressure fittings,

Type L copper water tube, H (drawn) temper, ASTM B88; with cast copper pressure fittings, ANSI B16.18; wrought copper pressure fittings, lead free (<.2%) solder, ASTM B32; flux, ANSI B16.22; copper phosphorous brazing alloy, AWS A5.8 BCuP.


2" and Smaller Steel:

ASTM A197/ANSI B16.3 malleable iron unions with brass seats. Use black malleable iron on black steel piping and galvanized malleable iron on galvanized steel piping. Grooved couplings may be used in lieu of unions.

2-1/2" and Larger:

ASTM A181 or A105, Class 150, grade 1 hot forged steel flanges of threaded, welding neck, or slip-on pattern on black steel and threaded only on galvanized steel. ANSI B16.1 or ANSI B16.5, Class 150 cast iron threaded flanges. Use raised face flanges ANSI B16.5 for mating with other raised face flanges or equipment with flat ring or full face gaskets.  Use ANSI B16.1 flat face flanges with full face gaskets for mating with other flat face flanges on equipment.


Mechanical grooved pipe couplings and fittings, ASTM F1476, as manufactured by Victaulic, Anvil, or Grinnell may be used with steel pipe. Mechanical grooved components and assemblies to be rated for minimum 175 psi working pressure unless noted otherwise.

All mechanical grooved pipe material including gaskets, couplings, fittings and flange adapters shall be from the same manufacturer.

Couplings and fittings to be malleable iron, ASTM A47, or ductile iron A536 with painted finish. Fittings used on galvanized steel pipe to have galvanized finish, ASTM A153.

Gaskets to be EPDM, ASTM D2000. Gaskets for dry systems to be flush seal design. Heat treated carbon steel oval neck track bolts and nuts, ASTM A-183, with zinc electroplated finish.

Flange adapters to be ductile iron, ASTM A536; except at lug type butterfly valves where standard threaded flanges shall be used.

Standard flanges are necessary so that the butterfly valve can be properly bolted to the flange and retain its place in the pipe when piping on one side is removed.


Manufacturer: Match existing sprinkler head model numbers establish type and style of  head. Products of the following manufacturers  will be accepted

Standard coverage sprinkler heads are to be the basis for design unless noted otherwise on the plans or within these specifications.

Extended coverage sprinkler heads may not be used without prior approval by Project/Construction Mgr.

Fusible link or glass bulb type, cast brass or bronze construction. Provide heads with nominal 1/2" or 17/32” discharge orifice except where greater than normal density requires large orifice.

Select fusible link or glass bulb temperature rating to not exceed maximum ambient temperature rating allowed under normal conditions at installed location. Provide ordinary temperature (155 to 165 degree) fusible link or glass bulb type except at skylights, sealed display windows, unventilated attics and roof spaces, over cooking equipment, adjacent to diffusers, unit heaters, uninsulated heating pipes or ducts, mechanical rooms, storage rooms, or where otherwise indicated.

Concealed sprinkler: Viking Mirage (Quick Response),or equivalent with adjustable concealed cover plate. Cover plate white finish to be to match existing system covers.  


Vane type waterflow switch with metal enclosure, adjustable pneumatic retard and electrical characteristics compatible with alarm system.


Pressure actuated switch with field adjustable settings, metal enclosure and electrical characteristics compatible with alarm system.


Weatherproof electric horn/strobe with red painted metal housing, mounting base and  weatherproof gasket seal, and electrical characteristics compatible with alarm system.  The horn strobe should be mounted above or as close as possible to the fire department connection.

Local alarm typically is not required at penal and mental institutions with central alarming.


Manufacturer: Ametek/U. S. Gauge Division, Ashcroft, Marsh, Taylor, H. O. Trerice, Weiss, Weksler or equivalent approved.

Cast aluminum, stainless steel, brass, polycarbonate or ABS case of not less than 3.5 inches in diameter, double strength glass window, black lettering on a white background, phosphor bronze bourdon tube with bronze bushings, recalibration from the front of the dial, 99% accuracy over the middle half of the scale, 98.5% accuracy over the remainder of the scale. Include bronze 3-way globe valve with plugged outlet for Fire Inspector's test gauge.


Manufacturers: Kennedy, Milwaukee, Nibco, Stockham, Victaulic, or Watts or other equivalent approved, match existing.


2" and smaller: Bronze, 2-piece, threaded or sweat ends, standard port, blowout proof stem, chrome plated ball, glass reinforced seats, UL approved @ 250 psi.  Watts No. B-6000 UL /  match existing system

Gate Valves:

2" and smaller: Outside screw and yoke gate valves, 175 psig, bronze body, bronze mounted, screwed bonnet, rising stem, solid wedge, with normally open tamper switch with double wire leads.


2-1/2" and larger: Outside screw and yoke gate valves, 175 psig, cast iron body, bronze mounted, bolted bonnet, rising stem, solid wedge, with normally open tamper switch with double wire leads.


Butterfly Valves:

2" and smaller: Bronze body butterfly valve, 175 psig, geared operator, visible position indicator, normally open tamper switch with double wire leads, Buna or Viton seat, stainless steel disc and stem.


2" and larger: Cast or ductile iron body butterfly valve, lug style or grooved, 175 psig, geared operator, visible position indicator, normally open tamper switch with double wire leads, EPDM resilient seat, EPDM seals, nickel plated ductile iron disc. Valve assembly to be bubble tight to 175 psig with no downstream flange/pipe attached. Use cap screws for removal of downstream piping while using the valve for system shutoff.



For O S & Y valve or butterfly valve installations, UL/FM listed/approved, to monitor position of valve, tamper resistant cover screws, single or double SPDT switch contacts, corrosion resistant, for indoor or outdoor use, NEMA 4 & 6P enclosures.

Check Valves:

3" and smaller:  Bronze body, threaded end, Y-pattern, regrindable bronze seat, renewable bronze disc, 175 psig, suitable for installation in a horizontal or vertical line with flow upward.

2-1/2" and larger:  Cast or ductile iron body, flanged or grooved ends, bronze trim, bolted cap, renewable bronze seat and disc, 175 psig, suitable for installation in a horizontal or vertical line with flow upward.

Provide 1/2" automatic drip drain on inlet of fire dept. connection check valve.

Spring loaded check valves:

2" and smaller:  Bronze body, threaded ends, bronze trim, stainless steel spring, stainless steel center guide pin, 175 psig, teflon seat unless only bronze available.

2-1/2" and larger:  Cast or ductile iron body, wafer or globe type, bronze trim, bronze or EPDM seat, stainless steel spring, stainless steel stem if stem is required, 175 psig., or equivalent, to match existing. 
Drain valves:
3/4" minimum, two piece bronze body ball valve; threaded ends, chrome plated bronze ball; glass filled teflon seat; teflon packing and threaded packing nut; blowout-proof stem; 400 psig WOG, with hose thread outlet and cap.

Double check valves:
Manufacturers: Ames, Conbraco, Febco, Watts, or Wilkins or equivalent, to match existing.

ASSE 1015 _" double check backflow preventer with 2 independent spring loaded swing type check valves, 2 isolation butterfly or gate valves with normally open tamper switch with double wire leads, 4 valved test ports. Size for minimum pressure drop. Constructed of bronze or epoxy coated cast/ductile iron or stainless steel body with bronze and plastic internal parts, stainless steel springs, silicone rubber valve discs, bronze seats, rated for 175 psig.


Manufacturer: Tyco, Reliable, Victaulic, Viking and Globe, or approved equivalent, to match existing.

Air Pressure Maintenance Device:

Automatic control capable of maintaining system air pressure, rated for 175 psig, adjustable air pressure range of 15 to 60 psig, complete with isolation valves, bypass fill valve, pressure regulator or pressure switch and strainer.

Deluge/preaction Valves:

Cast or ductile iron body, flanged or grooved ends, 175 psig, bronze grooved seat with o-ring seal. Provide trim for bypass, drain, electric sprinkler alarm switch, pressure gages, drip cup assembly piped to floor or hub drain, fill line attachment with strainer and push rod chamber assembly. Include dry pilot trim consisting of actuator, air and water pressure gages, low air warning switch, air relief valve and diaphragm actuation device with replaceable bronze seat and resilient diaphragm.

Deluge/Preaction Control:

Single area (two area or single area cross zoned) type in NEMA 1 enclosure with detector, alarm, power supply, battery charger, standby battery, electrically supervised solenoid valves, polarized fire alarm, lamp test, wiring terminal strip, auxiliary alarm contacts.

Class I and Class III Systems:

2-1/2" brass angle valve, 300 psig, with removable red handwheel, 2-1/2"x1-1/2" reducing lug pin connector coupling and National Standard male hose thread outlet, cap and chain. Provide N.P.T. female outlet where hose is required.

P A R T   3 - E X E C U T I O N



Install pipe fittings, and other fire suppression system components in accordance with reference standards, manufacturers recommendations and recognized industry practices.


Cut pipe ends square. Ream ends of piping to remove burrs. Clean scale and dirt from interior and exterior of each section of pipe and fitting prior to assembly.


nstall all piping parallel to building walls and ceilings and at heights which do not obstruct any portion of a window, doorway, stairway, or passageway.  Where interferences develop in the field, offset or reroute piping as required to clear such interferences.  Coordinate locations of fire protection piping with piping, ductwork, conduit and equipment of other trades to allow sufficient clearances.  In all cases, consult drawings for exact location of pipe spaces, ceiling heights, ceiling grid layout, light fixtures and grilles before installing piping.

Where copper or steel piping is embedded in masonry or concrete, provide protective sleeve covering of elastomeric pipe insulation.

Provide 3/32" min. thickness steel nailing plates behind or on either side of piping where the possibility of penetration from nails or drywall screws exists.

Maintain piping in clean condition internally during construction.

Provide clearance for access to valves and piping specialties.

Provide anchors, expansion joints, swing joints and/or expansion loops so that piping may expand and contract without damage to itself, equipment, or building.

Install piping so that system can be drained. Where possible, slope to main drain valve. Slope dry pipe and pre-action systems subject to freezing at minimum 1/4"/10' on mains and 1/2"/10' on branches. Where piping not susceptible to freezing cannot be fully drained, install nipple and cap for drainage of less than 5 gallons or ball valve with hose thread outlet and cap for drainage over 5 gallons. Pipe main drain valve to grade or to air gap sewer receptor.

Mitered ells, notched tees, and orange peel reducers are not acceptable.  On threaded piping, bushings are not acceptable.

Do not route piping within exterior walls.

Do not route piping through transformer vaults or above transformers, panelboards, or switchboards, including the required service space for this equipment, unless the piping is serving this equipment.

This requirement is based on NFPA 70, 384-4 and 450-47.

Install all valves and piping specialties, including items furnished by others, as specified and/or detailed. Provide access to valves and specialties for maintenance. Make connections to all equipment, fixtures and systems installed by others where same requires the piping services indicated in this section.



Remove all slivers and burrs remaining from the cutting operation by reaming and filing both pipe surfaces. Clean fitting and tube with metal brush, emery cloth or sandpaper. Remove residue from the cleaning operation and assemble joint to socket stop. Apply flame to fitting until brazing alloy melts when placed at joint. Wipe excess alloy from joint.


Make all welded joints by fusion welding in accordance with ASME Codes, ANSI B31, and State Codes where applicable. "Weldolets" and "Threadolets" may be used up to following sizes:


Weldolet/             Main

Threadolet           Pipe

Diameter              Diameter

¾”                        1¼”

1”                         1½”

1¼”                      2”

1½”                      2½”

2”                         3”

3”                         4”

4”                         6”

6”                         8”


Use a thread lubricant or teflon tape when making joints; no hard setting pipe thread cement or caulking will be allowed.


Use pipe factory grooved in accordance with the coupling manufacturer's specifications or field grooved pipe in accordance with the same specifications using specially designed tools available for the application. Lubricate pipe and coupling gasket, align pipe, and secure joint in accordance with the coupling manufacturer's specifications.


Install a union, flange or grooved coupling combination at each connection to each piece of equipment and at other items which may require removal for maintenance, repair, or replacement. Where a valve is located at a piece of equipment, locate the flange or union or grooved coupling combination connections on the equipment side of the valve. Concealed unions, flanges or couplings are not acceptable.


Conduct pressure test with test medium of water. If leaks are found, repair the area with new materials and repeat the test; caulking will not be acceptable.

Test piping in sections or entire system as required by sequence of construction. Do not conceal pipe until it has been successfully tested. If required for the additional pressure load under test, provide temporary restraints at fittings or expansion joints. Entire test must be witnessed by the Division's representative.

Use clean water and remove air from the piping being tested where possible. Measure and record test pressure at the high point in the system.

Test system at 200 psi for 2 hours showing no leakage. Where system design is in excess of 150 psig, test at a pressure 50 psig above system design pressure.

All pressure tests are to be documented on NFPA Contractor's Material and Test Certificate forms.


Conduct flushing of the underground water/fire main service as required by NFPA 13. The 200 PSI pressure test of the main shall be conducted by the installer of the main. The flushing operation is to be documented on NFPA Underground Contractor's Material and Test Certificate forms.


Install fire protection system components in accordance with NFPA rulings, listings and manufacturers recommendations. Locate where accessible for servicing and replacement.

Sprinkler Heads:  Locate sprinkler heads as indicated on fire protection plan and reflected ceiling plan maintaining minimum clearances from obstructions, ceilings and walls. Install sprinkler heads level in locations not subject to spray pattern interference. Provide fire sprinkler head installations below ductwork, soffits, etc.

The consultant is responsible for showing sprinkler head locations on drawings and coordinating with architectural, HVAC and electrical work to avoid conflicts If heads need to be centered within ceiling tiles, this requirement must be added to specification language (extra cost involved).

Switches:  Locate flow and pressure switches where indicated and where required to obtain specified zoning to isolate floors and major areas of floors. Provide valved test connection for flow switch adjacent to flow switch. Pipe to floor drain. Test flow switch to verify proper operation.

Locations of switches should be shown on drawing for coordination with electrical work.

Gauges:  Provide a valved pressure gauge in main fire protection riser, at the top of each piping riser, at inlet and outlet of pump and elsewhere as indicated.

Valves:  Properly align piping before installation of valves. Do not support weight of piping system on valve ends. Mount valves in locations which allow access for operation, servicing and replacement. Install all valves with the stem in the upright or horizontal position. Valves installed with the stems down will not be accepted. Provide a riser shutoff valve and a capped hose thread drain valve at the bottom of each riser. Provide capped hose thread drain valves to allow draining of each portion of piping.

Specialty Valves:  Install in vertical position fire protection riser. Install trim recommended by manufacturer including drain and test valves. Pipe drains to hub or floor drains. Test and adjust operation of valves, alarms, pressure maintenance devices, emergency pull boxes and deluge/preaction controls.

Fire Department and Fire Pump Test Connections:  Mount on wall where indicated. Support from structure independent of piping. Locate between 2' to 3' above grade. Fill wall penetration with insulation and caulk exterior and interior face of wall opening weathertight.

Air Compressor:  Install on concrete housekeeping pad, leveled and bolted in place. Pipe automatic drain discharge piping to floor drain. Install line size ball valve and check valve in discharge line. Install pressure gauge upstream of ball valve.


Contractor is responsible for utilizing the construction verification checklists supplied under specification Section 21 08 00 in accordance with the procedures defined for construction verification.



        Radha Krishna Temple Construction