FSS13960 NY5 Addendum 2 Specs.pdf

FSS50624.NY5 13960-1

SECTION 13960 – HIGH EXPANSION FOAM FIRE PROTECTION SYSTEM

PART 1 - GENERAL

1.01 SUMMARY:

A. This Section includes criteria for the supply, installation, and test High Expansion Foam Fire

Suppression Systems for the Hangar Bay. Materials and Equipment specified in this Section include:

1. Pipe, Fittings, Valves, Specialties.

2. High-Expansion Foam Generators.

3. High-Expansion Foam Concentrate, Foam Storage Tanks, Foam Proportioners.

B. General Requirements: The hangar bay is protected by a combination of high expansion foam systems and overhead wet sprinkler systems. The hangar bay overhead wet-pipe sprinkler system shall be installed as indicated in Specification SECTION 13916 - FIRE- SUPPRESSION SPRINKLERS. Provide system design, including hydraulic calculations, for fire protection system. Design for high expansion foam system as indicated in this specification.

C. Hangar Systems Operational Features: The hangar high-expansion foam fire protection system can be operated manually by use of a pull-station or opening of local valve and automatically by signal from the fire detection system. Automatic activation of the system shall be by water discharge of any sprinkler head inside the hangar bay or cross zone heat detection. Either automatic or manual alarm signals will cause the hangar high-expansion foam fire system to discharge. The foam/water deluge valve will be opened to allow water flow to start through the foam proportioner, at the same time opening the foam concentrate supply ball valve to the proportioner and providing the required foam/water mixture to the generator piping system.

The foam generators in the bay will automatically deliver high-expansion foam to provide a minimum foam depth of 3.278 feet in four minutes. In addition, the low-level high-expansion foam systems must cover 90% of the aircraft silhouette area projected on the floor in one minute or less.

D. The high-expansion foam systems indicated on the design drawings are based on the use of Chemguard equipment. Other suppliers who have UL or FM approval may supply equipment for this Project provided the costs of any required modifications are born by the supplier. The costs and work may include, but are not limited to, the following modifications: design and installation of higher pressure fire pumps, roof supply hoods and relief hatches, electrical work for installation of foam pumps or electrical powered generators, upsized foam storage tanks, etc.

1.02 REFERENCES:

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1. American Society For Testing And Materials (ASTM):

a. ASTM A53 - (1998) Pipe, Steel, Black and Hot-Dipped, Zinc-Coated Welded and Seamless.

b. ASTM A123 - (1997; Rev. A) Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

c. ASTM A312/A312M - (2002) Seamless and Welded Austenitic Stainless Steel Pipes.

d. ASTM A403/A403M - (2002) Wrought Austenitic Stainless Steel Piping Fittings.

e. ASTM A47/A47M - (1999) Ferritic Malleable Iron Castings.

f. ASTM A536 - (1999el) Ductile Iron Castings.

SECTION 13960 - HIGH EXPANSION FOAM FIRE PROTECTION SYSTEM: continued

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g. ASTM A795 - (2000) Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use.

2. American Society Of Mechanical Engineers (ASME):

a. ASME B16.1 - (1989) Cast Iron Pipe Flanges and Flanged Fittings.

b. ASME B16.3 - (1999) Malleable Iron Threaded Fittings 98'.

c. ASME B16.4 - (1998) Gray Iron Threaded Fittings.

d. ASME B31 - (1995) Power Piping.

3. Factory Mutual Engineering And Research (FM):

a. FM P7825a - (2004) Approval Guide Fire Protection.

4. Government:

a. Air Force ETL 02-15.

b. Air National Guard ANG ETL 01-1-1.

c. Unified Facilities Criteria (UFC), UFC 3-600-01.

5. National Fire Protection Association (NFPA):

a. NFPA 11A - (1999) Medium and High-Expansion Foam Systems.

b. NFPA 13 - (2002) Installation of Sprinkler Systems.

c. NFPA 24 - (2002) Installation of Private Fire Service Mains and Their

Appurtenances.

d. NFPA 70 - (2002) National Electrical Code.

e. NFPA 72 - (2002) National Fire Alarm Code.

f. NFPA 170 - (2006) Fire Safety and Emergency Symbols.

6. Underwriters Laboratories (UL):

a. UL Fire Prot Dir - (2004) Fire Protection Equipment Directory.

1.03 STANDARDS HIERARCHY:

A. In the event that discrepancies arise between Regulations and Technical Letters, the following hierarchy shall be used:

1. UFC's over-ride all other criteria.

2. Air National Guard Technical letters overrule Air Force Technical and NFPA Standards.

3. Air Force Technical Letters overrule NFPA Standards.

1.04 GENERAL REQUIREMENTS:

A. The system shall consist of an automatic high expansion foam fire protection system and shall be provided for the areas indicated on the drawings.

B. The Contractor is responsible for the full design, installation, testing, and acceptance of the high expansion foam system as required by this performance based specification. The drawings indicate general arrangement of piping, equipment, appurtenances, and other system components but are provided for "Information Only".

C. The Contractor is solely responsible for selecting the quantity and location of foam generators to satisfy the performance requirements. The Contractor shall:

1. Verify that the selected equipment will perform as herein required or make all associated changes required to provide a complete operating system at no additional cost to the government.

2. Provide calculations showing that all components of the system that he/she proposes will meet the criteria required by these documents.

3. Follow the drawings except to make adjustments to accommodate the selected equipment and verified water supply. General deviations from these drawings will not be allowed just for the Contractors convenience or preference.

SECTION 13960 – HIGH EXPANSION FOAM FIRE PROTECTION SYSTEM: continued

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4. Determine pipe sizes by hydraulic analysis.

5. Design any portion of the foam system not shown on the foam system drawings.

D. The drawings depict one layout based on one manufacturer's equipment (Chemguard). Other suppliers who have UL or FM approval may supply equipment for this Project.

E. Costs of any required modifications to current design shall be born by the supplier. The costs and work may include, but are not limited to, the following modifications: differing quantities of generators, upsized foam storage tanks, pipe size changes, pipe length changes, etc.

F. Except as modified herein, the system shall meet the requirements of ETL 02-15, UFC 3-600- 01, NFPA 11A, NFPA 24 and NFPA 72.

G. Hydraulic Design:

1. The system shall be hydraulically designed to provide the required quantity of foam using the selected foam generators. Hydraulic calculations shall be performed as required by NFPA 13. The foam system hydraulic calculations shall be balanced with the wet pipe sprinkler system calculations. See SECTION 13916 - FIRE SUPPRESSION SPRINKLERS for additional hydraulic calculation requirements. Water velocity in the piping shall not exceed 20 ft/s.

2. Demand calculations shall be performed to verify that the fire protection system design can provide adequate flow and pressure for concurrent operation of hangar bay sprinkler system and foam system. No hose allowance is required for this calculation.

3. Supply calculations shall be performed to prove that under any discharge conditions, the fire protection system is adequately sized to meet the flow requirements of the sprinkler and foam systems. These shall include foam system only, foam system and most remote 5000 square feet of sprinkler system and foam system and least demanding 5000 square feet of sprinkler system.

H. Basis for Calculations:

1. Hydraulic calculations shall be based upon the Hazen-Williams formula with a "C" value of 100 for normally "dry" steel pipe, 120 for wet steel pipe and 150 for PVC underground pipe.

1.05 SUMMARY:

A. This Section includes fixed, high expansion, fire-extinguishing systems and the following:

1. Piping and piping specialties.

2. Foam concentrate tank and proportioning devices.

3. Foam concentrate.

4. Discharge devices.

5. Valves.

6. Deluge valve-releasing panel.

1.06 SYSTEM DESCRIPTION:

A. Engineered, fixed-type, high-expansion, foam fire-extinguishing system for hydrocarbon-liquid fires. System includes diaphragm proportioning tanks and devices as described in NFPA 11 A.

1.07 PERFORMANCE REQUIREMENTS:

A. Failure to achieve these requirements during acceptance testing will indicate a system failure.

Contractor shall make modifications to obtain acceptable operations with no additional cost to the Owner.

B. Low-level high-expansion foam system must cover 90 percent of the aircraft silhouette area projected on the floor in one minute or less from the activation of manual foam discharge

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station. The area under engines that extend beyond the wing edge and under rear elevators does not have to be considered in the aircraft's silhouette area.

C. Low-level high-expansion foam systems must cover the aircraft servicing area and adjacent accessible areas to a depth of 3.2 feet (one meter) in four minutes or less.

D. Rate of Discharge:

1. The minimum rate of discharge or total generator capacity will be calculated in accordance with NFPA 11A; however, it will never be less than 2.6 ft3 min/ft2.

Application rates in the range of 2.6 to 4 ft3min/ft2 are required to meet the performance requirements.

2. The minimum rate of discharge or total generator capacity will be calculated from the following formula:

R = ([V/T] + Rs) X CN X CL where:

R = Rate of discharge in ft3/min V = Submergence volume in ft3 determined by the following formula:

V = A X D where:

A = Area of the aircraft servicing floor and adjacent floor areas not cut off from the aircraft servicing floor ft2 D = Depth = 3.28 feet which is greater than the 2 foot minimum foam depth over the hazard required in NFPA 11A.

T = Submergence time in minutes = 4 Rs = Rate of foam breakdown by sprinklers in ft3/min determined by the following formula:

Rs = S X Q where:

S = Foam breakdown from sprinkler discharge = 10 cubic feet per minute X gpm Q = Estimated total discharge from maximum number of sprinklers expected to operate in gpm.

CN = Compensation for normal foam shrinkage = 1.15. This is an empirical factor based on average reduction in foam quantity from solution drainage, fire, wetting of surfaces, and absorbency of stock.

CL = Compensation for loss of foam due to leakage around doors and windows and through un-closable openings determined by the design engineer after of the proper evaluation structure. The factor for this hangar shall not be less than 2.5.

E. Concentrate and Water Supply:

1. Concentrate and water supply will permit continuous operation of the system to generate four times the submergence volume, but for not less than 15 minutes at actual supply conditions.

F. Activation:

1. The following will activate the low-level high-expansion foam systems:

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a. Manual foam activation stations located as shown on drawings.

b. Cross zone Heat Detection in hangar bay.

c. Water discharge by any of the sprinkler heads in the hangar bay.

2. Proportioning

a. Use pressure proportioners for all bladder systems.

G. Control Valves:

a. Provide water-powered ball valves as foam concentrate control valves when feasible. The valve must be operated by connection to the alarm line of the automatic water control valve or alarm valve. Provide a retard chamber in the line to the water-powered ball valve on wet pipe foam water systems.

b. Provide electrically actuated ball valve as foam concentrate control valve when water powered ball valve is not feasible. The valve must be compatible with HEF panel.

H. Application Time:

1. For low-level high-expansion generators provide a connected foam concentrate supply sized for a single 15-minute application (or four times the submergence volume, whichever is greater) of foam at actual supply conditions.

1.08 SUBMITTALS:

A. Government approval is required for all submittals. Submittals shall be reviewed by the

Authority Having Jurisdiction (AHJ) prior to submittal for final review by Engineer.

B. High Expansion Foam Systems Shop Drawings:

1. Detail drawings conforming to the requirements prescribed in NFPA 13 which are signed and sealed by a qualified professional engineer; drawings shall be 30 x 42 inches.

Drawings shall include plan and elevation views which establish that the equipment will fit the allotted spaces with clearance for installation and maintenance. Each set of drawings shall include the following:

a. A descriptive index with drawings listed in sequence by number. A legend sheet identifying device symbols, nomenclature, and conventions in accordance with symbols shown in NFPA 170 used in the package.

b. Floor plans drawn to a scale not less than 1/8 inch equals 1 foot clearly showing locations of devices, equipment, risers, electrical power connections, areas covered by each generator, and other details required to clearly describe the proposed arrangement.

c. Piping plan for Hi-Ex system. Generators and associated piping shall be shown.

Abbreviated presentation forms will not be accepted. Each type of fitting used and the locations of bushings, reducing couplings, and welded joints shall be identified.

A separate plan shall be provided for each overhead sprinkler system and each nozzle system.

d. Piping plan and isometric drawing of the concentrate system and details of all associated valves, fittings, and other components. Drawing shall indicate all operational features.

e. Location of control panels, detectors, manual stations, supervisory switches, solenoids, notification appliances, and other electrical devices. In addition, conduit routing and sizes, and the number of conductors contained in each shall be indicated.

f. Longitudinal and transverse building sections showing typical pipe routing and elevation above finished floor.

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g. Equipment room layout drawings drawn to a scale of not less than 1/2 inch equals 1 foot to show details of each system component, clearances between each other and from other equipment and construction in the room.

h. Details of each type of pipe hanger, sway bracing for earthquake protection, restraint of underground water main at point-of-entry into the building, proportioners, foam generators, foam tanks, and mounting details, foam system control valve header and related components. Include bracing for foam generators and foam tanks. Design for seismic zone 2B per NFPA 13.

i. Connection drawings and control diagrams indicating overall electrical and mechanical operation of the foam system. This shall include identification and operation of each major component of the system. Diagrams shall be supplemented with a narrative description of the system. Point-to-point wiring diagrams shall indicate foam system control panel wiring and make and model of devices and equipment connected thereto.

C. High Expansion Foam System As-built Drawings:

1. One set of reproducible and six copies, within 14 calendar days after successful completion of required testing. A separate set of approved submittal drawings of the overall system, marked up to indicate as-built conditions, shall be maintained on site.

These drawings shall be maintained in a current condition at all times and shall be made available for review immediately upon request during normal working hours. Variations from the approved drawings, for whatever reason, including those occasioned by modifications, change orders, optional materials, and/or required for coordination between trades shall be indicated in sufficient detail to accurately reflect the as-built conditions.

D. Product Data:

1. Provide 3-way bracing to project systems against damage in accordance with UFC 4-010-

01.

E. Materials and Equipment:

1. Manufacturer's catalog data for each separate piece of equipment proposed for use in the system. Data shall indicate the name of the manufacturer of each item of equipment, with data highlighted to indicate model, size, options, etc. proposed for installation. In addition, a complete equipment list with equipment description, model number, and quantity shall be provided.

F. Spare Parts:

1. Spare parts data for each different item of material and equipment specified. The data shall include a complete list of parts and supplies, with current unit prices and source of supply, and a list of parts recommended by the manufacturer to be replaced after 1 year and 3 years of service. A list of special tools and test equipment required for maintenance and testing of the products supplied by the Contractor shall be included.

G. Foam Systems:

1. A copy of the proposed diagrams and instructions for the overall foam system, prior to posting.

H. Installer's Qualifications:

1. Data approved, prior to submittal of any other data or drawings, to substantiate that the proposed installer is regularly engaged in the installation of the type and complexity of fire protection system included in this project. Data shall identify the location of three systems recently installed by the proposed installer which are comparable to the system

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specified. Contractor shall certify that each system has performed satisfactorily, in the manner intended, for a period of not less than 6 months.

I. Post-discharge Test Requirements:

1. Details of method proposed for required tests at Final Acceptance, including step-by-step test procedures; list of equipment to be used; names, titles, and affiliations and qualifications of personnel who will participate in the tests; methods for protecting the facility and equipment during testing; means for containing the foam solution during discharge tests; and proposed means for disposal. Test plan shall include a drawing showing proposed number and arrangement of fire hoses and nozzles proposed for use in testing foam proportioners. Blank forms the Contractor plans to use to record test results shall be included.

J. Hydraulic Calculations:

1. Provide hydraulic calculations complying with the requirement of this Section and

SECTION 13916 - FIRE SUPPRESSION SPRINKLERS. Calculations shall be signed and sealed by a qualified professional engineer.

K. Foam Spread/Coverage Calculations:

1. Provide following calculations/information to verify that the design meets the requirements:

a. Provide liquid travel time in seconds from the deluge valve to each foam generator.

b. Provide Hi-Ex foam spread time from each foam generator in accordance with foam equipment manufacturer's recommendations for foam spread time.

c. Provide total time to meet the design criteria.

d. Provide calculations for liquid travel time and foam spread time indicated above.

e. Provide a sketch showing locations of deluge valves. Show pipe diameters, length of associated pipe, and travel time in seconds.

f. Provide a full size to-scale drawing with the aircraft silhouette, foam generators and foam-spread diagrams at one-minute elapsed time from the activation of a manual foam discharge station.

g. Include the requested information in a tabular form on the Foam Spread Drawing.

h. Note that the "One Minute or Less" coverage requirement starts at the actuation of manual foam discharge station.

L. Tests:

1. Test Plan: Test plan shall be complete in describing what measurements are to be made and how they will be collected. Include copies of proposed data collection forms and test reports. Clearly describe what tests are to be conducted, what data is to be collected, acceptable findings, corrective action for failure to meet acceptable findings, equipment required, personnel required, notification procedure for notifying contracting officer, list of manufacturers employees to assist, integration of test for sprinkler systems, fire pumps, high expansion foam, and fire alarm systems. Verify that the fire pumps are adequate to support the fire protection systems.

a. Reports as outlined in NFPA 13 documenting results of flushing and hydrostatic tests.

b. Trip tests of wet pipe sprinkler system and foam deluge system.

c. Test report of foam concentrate proportioning system. Report shall include all pressure readings and settings of system components. Report shall include conductivity readings for foam samples taken from the high expansion foam proportioner. Report shall be signed by the factory-trained technical representative employed by the foam concentrate manufacturer.

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d. Test report of the foam system control panel and initiating and indicating devices.

Report shall include a unique identifier for each device with an indication of test results. Report shall be signed by the factory-trained technician employed by the control panel manufacturer.

e. Videotapes of tests specified to be recorded.

M. Qualifications of Installer:

1. Certificates from manufacturers to substantiate that components, equipment and material proposed for installation and use meet requirements as specified, concurrent with submittal of manufacturer's catalog data of equipment proposed for installation.

Certificates shall be on a form for this purpose or on official letterhead of the manufacturer with specified information stated as required. Certificate shall be signed by an officer of the corporation. Certificates shall be provided for the following:

a. Foam concentrate. Certification that concentrate proposed for use has been tested and is in compliance with approved specifications.

b. Concentrate control valve. Certification that the valve is designed and, constructed as specified and will function as intended.

c. Proportioning system. Certification that the foam proportioning system complies with contract specifications and manufacturer's recommendations.

d. Control panel. Certification that the control panel releasing module is electrically compatible with the electrically-actuated automatic water control valve.

e. Gaskets. Certification from the foam manufacturer that the foam concentrate and foam/water solution is compatible with all gasket materials that it will contact in this system.

f. Foam Containment and Disposal Plan.

g. Compliance with foam system control panel ground fault detection requirement.

N. Operation and Maintenance Data:

1. Manuals in loose-leaf binder format and grouped by technical sections consisting of manufacturer's brochures, schematics, printed instructions, general operating procedures, and safety precautions. Manuals shall include a narrative description of the sequence or sequences of operation of the overall fire protection system and a separate description for each major subsystem. Information to be provided shall include specific settings for all adjustable valves. The manuals shall list routine maintenance procedures, possible breakdowns, and repairs, and troubleshooting guide. The manuals shall include conduit layout, equipment layout, and simplified wiring and control diagrams for the system as installed. The manuals shall include procedures and instructions pertaining to frequency of preventive maintenance, inspection, adjustment, lubrication and cleaning necessary to minimize corrective maintenance and repair.

O. Closeout Submittals:

1. As-built drawings for the fire extinguishing system.

2. Video tape of preliminary and final Hi-Ex foam discharge test

1.09 ENGINEER QUALIFICATION:

A. The Contractor shall have on staff or under contract a qualified and experienced Fire Protection

Engineer (FPE).

B. The engineer must be a qualified FPE meeting one of the following requirements:

1. Bachelor of Science or Master of Science degree in fire protection engineering from an accredited university, plus a minimum of five (5) years work experience in fire protection engineering.

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2. Professional Engineer (PE) registration by examination, National Council of Examiners for Engineering and Surveys (NCEES) fire protection engineering written examination.

3. Qualification as GS/GM 804-series FPE.

4. PE registration in a related discipline with minimum five (5) years experience in fire protection engineering.

C. The FPE shall be responsible for performing and overseeing all engineering aspects of the fire protection system construction, including, but not limited to calculations, layout, shop drawings, equipment selection and inspections. In addition, this person(s) shall be responsible for the testing plan and for final commissioning and testing of the system.

1.10 INSTALLER'S QUALIFICATIONS:

A. The installer shall be experienced and regularly engaged in the installation of the type and complexity of fire protection system included in this project. A statement prior to submittal of any other data or drawings, that the proposed installer is regularly engaged in the installation of the type and complexity of system included in this project shall be provided. In addition, data identifying the locations of at least three systems recently installed by the proposed installer which are comparable to the system specified shall be submitted. Contractor shall certify that each system has performed satisfactorily, in the manner intended, for a period of not less than 6 months.

1.11 REGULATORY REQUIREMENTS:

A. The advisory provisions of NFPA standards and recommended practices specified shall be considered mandatory, as though the word "shall" had been substituted for "should" wherever it appears. In the event of a conflict between referenced NFPA standards and this specification, this specification shall govern. Reference to "authority having jurisdiction" shall be interpreted to mean the Contracting Officer.

1.12 QUALITY ASSURANCE:

A. Source Limitations:

1. Obtain foam concentrate, proportioning tanks, and major accessories through one source.

All components shall be listed for use together as single system.

B. Product Options:

1. Drawings indicate size, profiles, and dimensional requirements of foam fire-extinguishing systems and are based on the specific system indicated. Other manufacturers' foam fire-extinguishing systems complying with requirements may be considered. Refer to Division 1 Section "Substitutions."

C. Code Compliance:

1. Electrical Components, Devices and Accessories

a. Listed and labeled as defined in NFPA 70, Article 100, by testing agency acceptable to authorities having jurisdiction, and marked for intended use.

2. NFPA Compliance:

a. Fabricate and label foam fire-extinguishing systems to comply with NFPA 11 A, except where contract documents provide specific criteria which is different than

NFPA.

3. ASME Compliance:

a. Fabricate piping to comply with ASME B31.1

4. UL/FM Compliance:

a. Equipment must be listed with concentrate provided.

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PART 2 - PRODUCTS

2.01 STANDARD PRODUCTS:

A. Materials and equipment shall be standard products of a manufacturer regularly engaged in the manufacture of such products and shall essentially duplicate items that have been in satisfactory use for at least 2 years prior to bid opening.

B. Products shall be Chemguard or approved equal. The manufacturer shall furnish all components of the system, including foam generators, bladder tanks, and proportioners. Foam generators shall be FM approved for use with high expansion foam.

C. High Expansion Foam control: specified under 16721 – FIRE ALARM SYSTEM.

2.02 REQUIREMENTS FOR FIRE PROTECTION SERVICE:

A. All equipment and material shall have been tested by Underwriters Laboratories, and listed in

UL Fire Prot Dir or approved by Factory Mutual and listed in FM P7825a. Where the terms "listed" or "approved" appear in this specification, such shall mean listed in UL Fire Prot Dir or FM P7825a. The omission of these terms under the description of any item of equipment described shall not be construed as waiving this requirement.

2.03 PRESSURE RATINGS:

A. Valves, fittings, couplings, proportioners, alarm switches, strainers, and similar devices shall be rated for the maximum working pressures that can be experienced in the system, but in no case less than 175 psi.

2.04 NAMEPLATES:

A. Major components of equipment shall have the manufacturer's name, address, type or style, model or serial number, and catalog number on a plate permanently affixed to the item of equipment.

2.05 ABOVEGROUND PIPING SYSTEMS HANDLING WATER OR FOAM SOLUTION:

A. Pipe:

1. Pipe shall be standard weight conforming to ASTM A795 or ASTM A53/A53M. Pipe shall be Schedule 40. Pipe shall be marked as to the brand or name of the manufacturer, kind of pipe and the ASTM designation in accordance with the "Product Marking" provisions of the ASTM standard. Galvanized pipe shall not be used.

B. Grooved Fittings and Couplings:

1. Grooved fittings, couplings and bolts shall be provided by the same manufacturer.

Fittings and couplings shall be malleable iron complying with ASTM A47/A47M or ductile iron complying with ASTM A536. Couplings shall be of the rigid type except that flexible type will be provided where flexible joints are specifically required by NFPA 13. Coupling gaskets shall be Grade E (EPDM) approved for dry pipe fire protection service. Gasket shall be the flush type that fills the entire cavity between the coupling and the pipe. Nuts and bolts shall be heat-treated steel conforming to ASTM A183 and shall be cadmium plated or zinc electroplated. Gaskets must be compatible with foam concentrate and foam/water solution to which it will be exposed.

C. Non-Grooved Fittings:

1. Non-grooved fittings shall be threaded or flanged. Threaded fittings shall be cast iron conforming to ASME B16.4 or malleable iron conforming to ASME B16.3. Plain-end fittings with mechanical couplings, fittings which require drilling a hole in the pipe, and

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fittings which use steel gripping devices to bite into the pipe and welded sprinkler fittings or outlets are not allowed in the foam system and shall not be used.

D. Flanges and Gaskets

1. Flanges shall conform to NFPA 13 and ASME B16.1. Flanges shall be the type that are welded or threaded to the pipe. Flanges which are bolted to grooved pipe will not be permitted. Gaskets shall be full face type EPDM or other approved material. Gaskets shall be compatible with foam concentrate and to foam/water solution to which it will be exposed.

E. Bolts:

1. Bolts shall be ASTM A449, Type 1 or 2. Bolts shall extend no less than three full threads beyond the nut with bolts tightened to the required torque.

F. Nuts:

1. Nuts shall be ASTM A193/A193M, Grade 5.

G. Washers:

1. Washers shall meet the requirements of ASTM F436. Flat circular washers shall be provided under all bolt heads and nuts.

H. Pipe Hangers:

1. Hangers shall be listed in UL Fire Prot Dir or FM P7825a and be of the type suitable for the application, construction and size pipe involved. All piping shall be provided with sway-bracing, regardless of earthquake zone.

I. Control Valve:

1. Unless otherwise indicated, valves shall be indicating type in accordance with NFPA 13.

Valves 2-1/2 inch and larger shall be flanged outside screw and yoke (OS&Y) type.

J. Check Valve:

1. Check valves 4 inches and larger shall be flanged, swing type, cast or ductile iron body and cover, cast or ductile iron clapper with replaceable EPDM rubber facing. Valves shall be suitable for either vertical or horizontal mounting and equipped with a removable handhole cover. The direction of flow shall be indicated by an arrow cast in the valve body. The valve body shall include plugged pipe thread connections for a 2 inch drain.

K. Basket Strainer: 200 psig working pressure; high tensile cast-iron body (ASTM A126) flanged-end connections, bolted cover, .25 diameter perforation stainless-steel basket, and bottom drain connection. Designed to trap foreign materials 1/8” and larger.

L. Pressure and Vacuum Gauges:

1. Gauges shall conform to ASME B40.1 and shall be provided with throttling type needle valve or a pulsation dampener and shut-off valve. Gauge shall be a minimum of 3-1/2 inches in diameter with a range from 0 psig to approximately 1.5 times the maximum system working pressure. Each gauge range shall be selected so that at normal operating pressure, the needle is within the middle-third of the range. Gauge shall be liquid-filled type.

2.06 ABOVEGROUND PIPING SYSTEMS HANDLING FOAM CONCENTRATE:

A. Pipe:

1. Pipe shall be standard weight stainless steel conforming to ASTM A312/A312M, Grade

TP 304L.

B. Fittings:

1. Seamless socket weld type or flanged type fittings shall conform to ASTM A403/A

403M, Grade WP 304L, and shall be compatible with the pipe. Grooved type fittings and couplings shall be of Type 316 Stainless Steel conforming to ASTM A351/A351M.

C. Pipe Hangers:

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1. Hangers shall be listed in UL Fire Prot Dir or FM P7825a and be of the type suitable for the application, construction and size pipe involved. All piping shall be provided with sway-bracing, regardless of earthquake zone.

D. Control Valves:

1. Valve shall be indicating type with full port ball and operating handle that indicates the on/off position of the valve. Unit shall be socket weld or flanged type. Valve body and ball shall be 316 stainless steel complying with ASTM A351/A351M. The valve handle shall be provided with a suitable and substantial means for securing the valve open with a key-operated locking device.

E. Check Valves:

1. Valve shall be of the socket weld or flanged type. Valve body shall be 316 stainless steel complying with ASTM A351/A351M.

2.07 ALARM CHECK VALVE:

A. Alarm Check Valves: UL 193, designed for horizontal or vertical installation, with bronze grooved seat with O-ring seals, single-hinge pin, and latch design. Include trim sets for bypass, drain, electrical sprinkler alarm switch, pressure gages, to water powered concentrate control valve and fill-line attachment with strainer .

2.08 PILOT OPERATED PRESSURE REGULATING DELUGE VALVE:

A. Deluge/Foam systems shall require a reduced discharge pressure at the system riser and shall employ the use of a listed and approved pilot operated pressure regulating deluge valve that has been approved with the proportioning system. Pilot operated pressure regulating deluge valve shall have as part of its assembly a straight thru pattern flow control valve, a pilot pressure regulating valve, a speed control assembly, listed brass trim piping, drain and test valves, pressure gauges, electric alarm pressure switch and other required appurtenances. Pilot operated pressure regulating deluge valve shall be UL Listed as an integral part of the proportioning system. Water control valve shall be an electrically-actuated type rated for a maximum working pressure of 175 psi, suitable for mounting. The control valve shall be resettable without opening the valve and without the use of special tools. Electrical solenoid valve used to actuate the water control valve shall be an integral component of the valve or shall be approved for use by the water control valve manufacturer and the control panel manufacturer. Solenoid valve shall be of the normally closed, de-energized type which opens when energized upon receipt of an electrical signal from the control panel to which it is connected. Solenoid valves used with diaphragm-type valves shall be rated for a maximum pressure equal to that of the associated valve. Water control valve shall be equipped with a means to prevent the valve from returning to the closed position until being manually reset.

Valve shall have factory applied coating to resist corrosion from contact with foam products.

Each assembly shall include an emergency release device for manually tripping the water control valve in the event of a power or other system failure. Device shall be a standard accessory component of the valve manufacturer and shall be labeled as to its function and method of operation. Valves located in hazardous locations shall be approved for the hazard classification of the area where located.

B. Do not use galvanized pipe or fittings.

C. Provide factory applied coating to resist corrosion from contact with foam products on valve parts that may be in contact with the foam products.

2.09 HIGH EXPANSION FOAM LIQUID CONCENTRATE:

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A. High expansion foam concentrate shall be 2.0 % proportioning, FM approved, for use with all selected components. Concentrate shall be the product of one manufacturer. Mixing of non-identical brands of concentrate will not be permitted.

2.10 DIAPHRAGM TANK BALANCED PRESSURE PROPORTIONING SYSTEM:

A. Tank shall be a steel pressure vessel constructed in accordance with ASME BPVC SEC VIII

D1. ASME label shall be permanently affixed to the tank. Tank shall be a horizontal tank supported by two saddles welded to the tank and fitted with anchoring holes and shall contain a full internal diaphragm (bladder) having a minimum capacity as shown on drawings.

Diaphragm shall be nylon-reinforced Buna-N rubber or other approved material conforming to the inside shape of the tank. Concentrate shall be stored inside the diaphragm and the concentrate shall not be in contact with the steel tank. The tank shall have perforated PVC tubes installed inside the diaphragm to assure full displacement of the stored concentrate.

Tank shall be equipped with the manufacturer's standard fittings and trim, including foam concentrate outlet, bladder fill and drain connections, water inlet, tank shell fill and drain connections, and concentrate sight gauge.

B. Pipe and fittings in contact with water only shall be schedule 40 ASTM B43 and ASTM B584 respectively. Valves shall be 1/4 turn with bronze body, ball and stem. Pipe fittings, and valves in contact with foam concentrate shall be 304 stainless steel. Each valve shall have nameplate depicting name and operating position. Each valve shall have ring pin and attached for securing the valve in the operating position.

2.11 DISCHARGE DEVICES:

A. High Expansion Foam Generators

1. FM approved water powered generator with stainless steel screen and pre-piped Y-strainer. The generators shall discharge the foam/water solution at the rate necessary to meet the requirements of Paragraph 1.07.

2.12 HYDRAULIC FOAM CONCENTRATE CONTROL VALVE ASSEMBLY:

A. Assembly shall be specifically designed and constructed to control foam concentrate to proportioners and shall be arranged to open upon application of water or foam solution pressure from the alarm check or automatic water control valve to which it is connected.

Valve shall be a listed or approved automatic control valve specifically intended for this application or a full port ball valve. All components shall be constructed of brass, bronze or stainless steel, except that the internal portions of listed or approved fire protection valves subjected to foam concentrate may be provided with a coating warranted by the manufacturer to protect the valve from the deleterious effects of the concentrate. All components shall be rated for working pressure of 175 psi or maximum working pressure to which they could be subjected, whichever is greater. Valve shall be certified by the manufacturer to be operable with water inlet pressure as low as 30 psi. Valve components shall be brass, bronze or stainless steel.

2.13 PROPORTIONING DEVICE:

A. The proportioner shall be a standard balanced pressure type unit capable of proportioning high expansion foam concentrate at 2.0%, (2.0 parts concentrate to 98.0 parts water by volume solution) at flow rates within the flow range of the proportioner. Major components of the proportioner, including the body, inlet nozzle and metering orifice shall be of brass, bronze or stainless steel. The body shall be clearly marked with a flow-direction arrow, and the type and percent of high expansion foam concentrate that it was designed to proportion. The

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proportioner size and maximum friction loss shall be as indicated on Drawing Schedules.

Components shall be of the make/model required by the specific UL listing or FM approval.

Field assembly or disassembly of components will not be allowed.

2.14 SURGE ARRESTER:

A. Equip every foam riser with a bladder type surge arrestor sized by the manufacturer to prevent damage to the fire protection system. Arrestor shall be UL listed or FM approved. Minimum size is 10-gallon capacity. Units must be UL listed for fire service and have a working pressure of not less than 275 psi. Provide pressure gauge for bladder/shell pressure reading.

Provide wall-mount brackets for 10-gallon units. Provide seismic floor stand for larger units.

Provide sizing calculations performed by the manufacturer as a part of the submittal process.

Manufacturer shall be Young Engineering and Mfg., Inc., or approved equal.

2.15 AIR RELEASE VALVE:

A. FM approved air release valve shall be of the float operated design, and capable of releasing accumulated air from a pressurized fluid system. The float shall be stainless steel, body and cover of cast iron. Valve shall be approved for systems of 175 psig.

2.16 FOAM SYSTEM CONTROLS:

A. Panel shall be compatible to building fire alarm system, non-addressable, in a NEMA 1 enclosure, UL listed or FM approved for "Releasing Device Service" or shall have modules approved for this purpose. The panel shall communicate with and control the following types of equipment used to make-up the system: cross-zoned heat detectors, manual foam discharge pull station, alarm notification such as blue beacon lights and alert horns, releasing components, building fire alarm system in zone-by-zone basis, and other system controlled devices. The panel shall be wired to Style Z, Class A notification circuits; releasing circuit;

form-C alarm and trouble contacts; Style D, Class A initiating circuits; Style D Class A manual release circuit; and, Style D, Class A abort circuit. Panel shall contain components and equipment required to provide the specified operational and supervisory functions of the system. The panel shall also include the following: output circuits to protect against false activations by using a 2-step electronic activation circuit; battery/earth fault supervision;

adjustable delay timer, zero to 30 sections; cross zone shall be selectable( two zones in alarm before release); three; abort functions shall be selectable ( standard UL method, IRI method, local authority having jurisdiction method); second release circuit in place of a third notification circuit; supervised manual; release when; activated shall override the Abort; and, a watchdog timer to supervise microprocessor. The power supply shall be integral to the control panel and provide all control panels and peripheral device power needs. Input power shall be 120 volts, 60Hz. The power supply shall provide an integral battery charger.The power supply shall provide 4 amperes of regulated 24 VDC power for release circuits and alarm notification devices four-wire smoke detector power of 24 VDC up to 500 ma, non-resettable power of 24 VDC up to 500 ma. Power supply to meet UL and NFPA requirements for power-limited operation on all notification and initiating circuits. It includes positive-temperature-coefficient thermistors, circuit breakers, fuses, or other over-current protection shall be provided on all power outputs. Batteries shall provide 24VDC. Batteries shall have sufficient capacity to power the fire alarm system for not less than 24 hours in stand-by plus 5 minutes of alarm upon a normal AC power failure.Components shall be housed in a surface mounted steel cabinet with hinged door and cylinder lock. Control panel shall be a clean, uncluttered, and orderly factory assembled and wired unit. Panel shall include integral "power on," "alarm," and

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"trouble" lamps with annunciation of each alarm, supervisory and trouble signal. The panel shall have prominent rigid plastic or metal identification plates for zones, indicating lights, controls, meters, and switches. Lamps and fuses mounted on circuit boards shall be identified by permanent markings on the circuit board. Contractor shall ensure control panel is coordinated and interfaced with building fire alarm system. Nameplates for fuses shall also include ampere rating. Control panel switches shall be within the locked cabinet. A suitable means shall be provided for testing the control panel visual indicating devices (meter and lamps). Meters and lamps shall be plainly visible when the cabinet door is closed. An integral graphical annunciator shall be provided to indicate and annunciate, by zone, any alarm, supervisory or trouble condition on the system by use of LED and LCD indication. Upon restoration of power, start-up shall be automatic, and shall not require any manual operation.

The loss of primary power or the sequence of applying primary or emergency power shall not affect the transmission of alarm, supervisory or trouble signals. FSCP shall have TVSS, mounted outside of the panel, on all lines entering or leaving the building per ETL 02-15.

Installl and wire panel as specified in SECTION 16721 – FIRE ALARM SYSTEM.

1. Alarm initiating devices shall be connected to signal line circuits (SLC), Class A, Style D

(non-addressable), in accordance with NFPA 72. Alarm notification appliances shall be connected to notification appliance circuits (NAC), Class A, Style Z, in accordance with NFPA 72. A looped conduit system shall be provided so that if the conduit and all conductors within are severed at any point, all IDC, NAC and SLC will remain functional. Under no circumstance shall system release foam agent upon a short-to-ground condition.

B. Zone Annunciator:

1. Visual graphic annunciators shall be provided for each active zone and spare zone. A separate alarm and trouble lamp shall be provided for each zone and shall be located on the exterior of the cabinet door or be visible through the door. A minimum of two spare alarm zones that are fully operational shall be provided. Each lamp shall provide specific identification of the zone by means of a permanently attached rigid plastic or metal sign with either raised, engraved or silk-screened letters. Zone identification shall consist of a unique zone number as well as a word description of the zone. Zones shall be arranged as shown on the drawings.

C. System Zoning:

1. The system shall be a single zone for foam discharge.

D. Primary Power Supply:

1. Primary power and trouble alarm. Power to the control panel shall be as indicated. Panel shall be permanently marked "FOAM FIRE PROTECTION SYSTEM".

E. Emergency Power Supply:

1. Emergency power shall be provided for system operation in the event of failure of the primary power supply and shall consist of rechargeable storage battery system. Transfer from normal to emergency power or restoration from emergency to normal power shall be automatic and shall not cause transmission of a false alarm.

F. Storage Batteries:

1. Storage Batteries shall be sealed, lead-calcium type requiring no additional water. The batteries shall have ample capacity, with primary power disconnected, to operate the system for a period of 90 hours. Following this period of operation via batteries, the batteries shall have ample capacity to operate alarm indicating devices in the alarm mode for a minimum period of 15 minutes. Battery cabinet shall be a separate compartment within the control panel. The battery compartment or cabinet shall have twice the

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volume of the batteries. Batteries shall set on a non-corrosive and non-conductive base or pad. Batteries in the control panel shall be located at the bottom of the panel.

2. Battery Charger

a. Battery charger shall be completely automatic, with high/low charging rate, capable of restoring the batteries from full discharge to full charge within 24 hours. A separate ammeter shall be provided for indicating rate of charge. A separate voltmeter shall be provided to indicate the state of the battery charge. A pilot light indicating when batteries are manually placed on a high rate of charge shall be provided as part of the unit assembly if a high rate switch is provided. Charger shall be located in control panel cabinet.

2.17 ALARM INITIATING DEVICES:

A. Manual Foam Discharge Pull Station: Unit shall be dual-action type requiring the opening of a cover and pulling of a ring to actuate. It shall not require the breaking of glass to actuate.

Manual foam discharge stations shall be yellow (not field painted yellow) and distinctively different from the manual fire alarm stations. Foam pull stations shall be provided with gasketed and water proof backboxes. Distinctive signage at each device shall state “START FOAM SYSTEM” in red letters not less than 3 inches high on a yellow or lime-yellow background. The manual discharge station shall be mounted directly on the sign. The manual discharge station shall be the locking type that when activated, require a key to be reset. Alarm contacts shall have a minimum rating of 120Vac, 60 Hz, 6 amps. Contact gap distance shall be factory set and not be field adjustable. Unit shall be compatible with the foam release panel to which it is connected. Unit shall be listed or approved for use in hazardous locations. Refer to Electrical drawings for quantity of pull stations. Pull stations shall be wired to foam system control panel.

1. Enclosure: Unit shall consist of a tamper-resistant, clear polycarbonate shield and frame that fits over the manual foam pull station. The unit shall be hinged on the side and suitably labeled to indicate means of gaining access to the manual foam pull station it protects. It shall include a spacer as required to accommodate its use with a surface-mounted manual foam discharge station.

2. Pull stations shall be wired under the wiring requirements in SECTION 16721- FIRE

ALARM SYSTEMS.

B. Rate Compensated Heat Detectors (cross Zone): Pod heat detection system shall be wired under SECTION 16721 - FIRE ALARM SYSTEMS. Pod heat detectors shall be wired to foam system control panel.