B08_Section_J_Attachment_2_Specifications_Volume_2.pdf

SELMA TO MONTGOMERY HISTORIC TRAIL

SELMA, ALABAMA

REHABILITATE SELMA INTERPRETIVE CENTER

SEMO

PMIS NO. 218940

Final Construction Documents February 14, 2023

PROJECT SPECIFICATIONS

VOLUME 2

DIVISION 21 - 33

NATIONAL PARK SERVICE (NPS)

DENVER SERVICE CENTER (DSC)

SEMO - 218940 1

SEALS PAGE

I hereby certify that the portion of this technical submission described below was prepared by me or under my direct supervision and that I am a duly registered architect under the laws of the State of Alabama.

John Tabor 2/17/2023

(INSERT NAME) Date

My license renewal date is December 31, 2023

Specification Sections covered by this seal:

Division 1 – General Requirements, 02 04 00, 04 03 21, 04 03 23, 04 05 05, 04 05 10, 04 05 16, 04 05 23, 04 21 13, 04 21 14, 05 21 00, 06 10 00, 06 11 10, 06 16 43, 06 20 00, Division 7 – Thermal and Moisture Protection, Division 8 - Openings, Division 9 - Finishes, Division 10 - Specialties, Division 11 - Equipment, and Division 12 – Furnishings am a Certified Industrial Hygienist under the laws of the State of Alabama.

Amanda McKenney 2/20/2023

My license renewal date is March 8, 3023

Specification Sections covered by this seal:

02 04 01, 02 04 01.01, 02 41 01.02, 02 41 01.03, 02 41 01.04, 03 41 01.05, 02 41 01.06, 02 41 01.07, 02 41 01.08, 02 41 01.09, 02 41 01.10, 02 41 01.11, 02 41 02, 02 41 03, 02 41 04, 02 41 05, Appendix A, Appendix B, Appendix C, Pre-Renovation Hazardous Materials Survey Report

Certification No.

APD0322581510

I hereby certify that the portion of this technical submission described am a duly registered engineer under the laws of the State of Alabama.

Lawrence Butler 2/17/2023

Specification Sections covered by this seal:

Division 31 - Earthwork, 32 13 13 Division 33 – Utilities

SEMO - 218940 2

I hereby certify that the portion of this technical submission described below was prepared by me or under my direct supervision and that I am a duly registered landscape architect under the laws of the State of Alabama.

Jennifer Cross 02/17/2023 (INSERT NAME) Date

My license renewal date is December 31,2023

Specification Sections covered by this seal:

32 14 16, 32 14 40, 32 31 18, 32 31 38, 32 33 00, 32 84 00, 32 91 19, 32 93 00

Lawrence Butler 2/17/2023

My license renewal date is December 31,2023

Specification Sections covered by this seal:

Division 3 – Concrete, 04 22 00, 05 12 00, 05 21 00, 05 31 23, 05 40 00, and 06 18 00

Thomas Hattemer 2/17/2023

Specification Sections covered by this seal:

Division 22 - Plumbing

Division 23 – Heating Ventilating and Air Conditioning

SEMO - 218940 3

I hereby certify that the portion of this technical submission described below was prepared by me or under my direct supervision and that I am a duly registered engineer under the laws of the State of Alabama.

Adam Senk 02/17/2023 (INSERT NAME) Date

My license renewal date is December 31, 2023

Specification Sections covered by this seal:

Division 21 10 00 - Fire Suppression

D. Morgan Garner, PE #33579 2/17/2023

Specification Sections covered by this seal:

Division 26 - Electrical Division 27 -_Communications Division 28 -_Electronic Safety and Security

2/17/23

SEMO - 218940 00 01 10 - 1

Table of Contents

VOLUME 2

TABLE OF CONTENTS

DIVISION 21 — FIRE SUPPRESSION

21 10 00 - FIRE PROTECTION SYSTEMS

DIVISION 22 — PLUMBING

22 10 16 - PLUMBING PIPING

22 11 23 - PLUMBING PUMPS

22 33 00 - DOMESTIC WATER HEATERS

22 42 00 - PLUMBING FIXTURES

DIVISION 23 — HEATING VENTILATING AND AIR CONDITIONING

23 05 00 - SPECIAL MECHANICAL REQUIREMENTS

23 05 29 - PENETRATIONS AND SUPPORTS

23 05 50 - MECHANICAL SOUND AND VIBRATION CONTROL

23 05 53 - MECHANICAL IDENTIFICATION SYSTEMS

23 05 93 - TESTING, ADJUSTING, AND BALANCING FOR HVAC

23 07 00 - PIPE, DUCT AND EQUIPMENT INSULATION

23 23 00 - REFRIGERANT PIPING

23 31 13 - AIR DISTRIBUTION SYSTEM

23 35 00 - EXHAUST AND VENTILATING FANS

23 74 33 - DEDICATED OUTDOOR-AIR UNITS

23 81 26 - SPLIT-SYSTEM AIR-CONDITIONERS

23 81 29 - VARIABLE-REFRIGERANT-FLOW HVAC SYSTEMS

23 82 43 - ELECTRIC HEATERS

DIVISION 26 — ELECTRICAL

26 01 00 - GENERAL ITEMS

26 05 19 - LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES

26 05 26 - GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

26 05 29 - HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS

26 05 33 - RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS

26 05 43 - UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS

26 05 44 - SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND CABLING

26 05 53 - IDENTIFICATION FOR ELECTRICAL SYSTEMS

26 09 13 - POWER MONITORING

26 09 23 - LIGHTING CONTROL SYSTEM

26 24 16 - PANELBOARDS

26 27 26 - WIRING DEVICES

26 28 13 - FUSES

26 28 16 - ENCLOSED SWITCHES AND CIRCUIT BREAKERS

26 30 00 - SHORT-CIRCUIT COORDINATION STUDY ARC FLASH HAZARD

26 41 13 - LIGHTNING PROTECTION FOR STRUCTURES

26 51 19 - LED INTERIOR LIGHTING

26 56 19 - LED EXTERIOR LIGHTING

26 99 70 - ElLECTRICAL TESTING REQUIREMENTS

SEMO - 218940 00 01 10 - 2

Table of Contents

DIVISION 27 — COMMUNICATIONS

27 05 00 - STRUCTURED CABLING

27 05 10 - IDENTIFICATION FOR COMMUNICATION SYSTEMS

27 05 20 - COMMUNICATIONS CABLE MANAGEMENT AND LADDER RACK

27 05 25 - GROUNDING AND BONDING FOR COMMUNICATION SYSTEMS

27 05 28 - PATHWAYS FOR COMMUNICATIONS SYSTEMS

27 05 44 - SLEEVES AND SLEEVE SEALS FOR COMMUNICATIONS PATHWAYS AND

CABLING

27 13 00 - COMMUNICATIONS OPTICAL FIBER BACKBONE CABLING

27 15 00 - COMMUNICATIONS COPPER HORIZONTAL CABLING

27 20 05 - COMMUNICATIONS PATCH PANELS AND FIBER OPTIC ENCLOSURES

27 20 10 - COMMUNICATIONS RACKS AND ENCLOSURES

27 20 15 - COMMUNICATIONS FACEPLATES AND CONNECTORS

27 20 20 - COMMUNICATIONS PATCH CORDS AND WORKSTATION CORDS

DIVISION 28 — ELECTRONIC SAFETY AND SECURITY

28 31 11 - DIGITAL ADDRESSABLE FIRE-ALARM SYSTEM

28 40 00 - EMERGENCY PHONE SYSTEM

28 41 11 - FIRE FIGHTER COMMUNICATION SYSTEM

DIVISION 31 — EARTHWORK

31 05 13 - SOILS FOR EARTHWORK

31 10 00 - SITE CLEARING

31 22 19 - TOPSOILING AND FINISHED GRADING

31 23 00 - BUILDING EXCAVATION, FILLING, AND BACKFILLING

31 25 00 - EROSION AND SEDIMENTATION CONTROLS

31 31 16 - TERMITE CONTROL

DIVISION 32 — EXTERIOR IMPROVEMENTS

32 13 13 - CONCRETE PAVING

32 14 16 - BRICK UNIT PAVING

32 14 40 - STONE PAVING

32 31 18 - PEDESTRIAN FENCE AND GATES

32 31 38 - LOUVERED SCREENWALL AND GATES

32 33 00 - SITE FURNISHINGS

32 84 00 - PLANTING IRRIGATION

32 91 19 - LANDSCAPE GRADING

32 93 00 - PLANTS

DIVISION 33 — UTILITIES

33 10 10 - OUTSIDE UTILITIES

33 46 00 - FOUNDATION AND UNDERSLAB DRAINAGE SYSTEM

D I V I S I O N 2 1

FIRE SUPPRESSION

This page intentionally left blank.

SEMO - 218940 21 10 00 - 1

FIRE PROTECTION SYSTEMS

SECTION 21 10 00 - FIRE PROTECTION SYSTEMS

PART 1 - GENERAL

1.1 SUMMARY

A. Furnish labor, materials, tools, equipment, and services for Fire Protection Systems, as indicated, in accordance with provisions of Contract Documents.

B. Fire Protection Systems Included:

1. Water based:

a. Fire Protection piping.

C. Related Specification Sections include but are not necessarily limited to:

1. Division 0 - Bidding Requirements, Contract Forms and Conditions of the Contract.

2. Division 1 - General Requirements.

3. Section 28 46 00 - Fire Alarm System.

D. Completely coordinate with work of other trades.

1.2 QUALITY ASSURANCE

A. General:

1. Workmanship and appearance to maintain the building’s historical fabric.

2. Use only new material of first-class construction, designed, and guaranteed to perform service required.

3. Provide fully operational systems.

4. Provide complete fire protection systems as described in the Contract Documents and according to criteria of Authority (ies) Having Jurisdiction (AHJ).

a. Where system requirements as described in the Contract Documents exceed those of the AHJ, meet requirements of both.

b. Where discrepancies exist among the AHJ requirements, and Contract Documents, the most stringent requirements shall take precedence.

SEMO - 218940 21 10 00 - 2

B. Authorities Having Jurisdiction:

1. NPS MWR Structural Fire Protection Manager.

C. Referenced Criteria (applicable as referenced by AHJ):

1. Latest edition of referenced criteria applies.

2. National Fire Protection Association (NFPA).

3. Underwriter's Laboratories (UL).

4. National Park Service Reference Manual 58 Structural Fire Management.

D. Designer Qualifications:

1. Fire protection systems shall be designed by a NICET Level III Designer or Licensed Fire Protection Engineer.

2. Drawings to include certification, signature, and registration number of the certified technician.

E. Installer Qualifications:

1. Fire protection system installation shall be supervised onsite, by a minimum NICET Level II technician.

2. Fire Protection Installer shall be licensed and shall provide evidence of the successful completion of at least five projects of equal or greater size and complexity.

3. Use workmen skilled in this trade.

1.3 SYSTEM DESCRIPTION

A. Design Requirements:

1. Design fire sprinkler systems per NFPA 13, 2022 requirements.

2. Scope of work is comprehensive and includes all design, coordination, approvals, materials, labor, installation, testing and approvals that results in a complete NFPA 13 compliant automatic fire sprinkler system(s) for buildings as indicated on the Contract Drawings.

3. All areas are to be fully sprinklered unless indicated otherwise on the Contract Drawings.

4. Designs shall include a minimum safety allowance of 5 PSIG below the adjusted water supply curve.

SEMO - 218940 21 10 00 - 3

5. Completely coordinate work of this Specification Section with all other work in order to provide a complete and workable system acceptable to building and fire authorities and in accordance with the Contract Documents.

1.4 SUBMITTALS

A. Working Plans:

1. Submit detailed data and complete layout of fire protection systems (sprinkler systems, alarm, and signal devices, etc.) approved by Authorities Having Jurisdiction and prepared in accordance with the requirements for Plans and Calculations described in NFPA 13 Chapter 28.

a. Include calculations prepared in accordance with the requirements for Hydraulic Calculations described in applicable NFPA standards.

b. Certification that all Plans and calculations, including sprinkler flow calculations have been approved by all agencies with jurisdiction.

B. Product Data:

1. Dry-pipe sprinkler system.

2.

a. Self-contained nitrogen generating assembly.

b. Purge vent assembly.

c. Nitrogen maintenance device.

d. Nitrogen analyzer.

e. Pipe, fittings, and pipe hanging devices.

3. Submit catalog data and Specifications for all manufactured components supplied as part of the fire protection system.

C. Certifications:

1. Certification that all plans and calculations, including sprinkler flow calculations have been approved by all agencies with jurisdiction.

2. Certification that all required post installation tests and inspections have been completed and approved by all agencies with jurisdiction.

D. Contract Closeout Information:

SEMO - 218940 21 10 00 - 4

1. Letter, with Contracting Officer acceptance signature, stating spare parts and extra materials per NFPA requirements have been delivered.

2. Operating and maintenance data. See Division 0 for requirements and include the following supplemental information:

a. Provide three manuals in accordance with NFPA 13. The manuals shall include the manufacturer's name, model number, parts list, list of parts and tools that should be kept in stock by the Government for routine maintenance including the name of a local supplier, simplified wiring and controls diagrams, troubleshooting guide, and recommended service organization (including address and telephone number) for each item of equipment. Each service organization submitted shall be capable of providing 4 HR on-site response to a service call on an emergency basis.

3. Government instruction report.

4. Test reports:

a. Certification that tests as indicated in FIELD QUALITY CONTROL (Part

3) have been successfully completed and approved by authorities having jurisdiction.

b. Certification that all required post installation tests and inspections have been completed and approved by all agencies with jurisdiction.

c. Contractor’s Material and Test Certificate for Underground Piping.

d. Contractor’s Material and Test Certificate for Aboveground Piping.

5. As-Built Drawings:

a. As-Built Shop Drawings, at no later than 14 days after completion of the Final Tests. The Sprinkler System Drawings shall be updated to reflect as-built conditions after all related work is completed. Provide Electronic Drawings in .dwg and .pdf format.

1.5 JOB CONDITIONS

A. Arrange and pay for permits, fees and inspections required.

PART 2 - PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. Alarm and Signal Devices:

SEMO - 218940 21 10 00 - 5

1. Potter Electric Signal.

2. System Sensor.

3. Integral tamper switch provided with a UL-Listed butterfly valve.

B. Backflow Prevention Devices:

1. Ames Company, Inc.

2. Conbraco Industries, Inc.

3. FEBCO/Watts Technologies, Inc.

4. Mueller Company.

5. Watts Regulator Company.

6. Zurn Wilkins Industries, LLC.

C. Fire Department Connections, Fire Department Valves, Fire Hose Cabinets, and Hydrants:

1. Dixon Valve & Coupling Co., LLC.

2. Elkhart Brass Mfg. Co. Inc.

3. Fire End & Croker Corporation.

4. Lansdale Valve Manufacturing Corporation.

5. Guardian Fire Equipment, Inc.

6. Potter Roemer Fire Products.

7. Reliable Automatic Sprinkler Co., Inc.

8. Smith Cooper International.

D. Fire Protection Systems, Water-Based:

1. Globe Fire Protection.

2. Reliable Automatic Sprinkler Co., Inc.

3. Tyco Fire Products, LP.

4. Victaulic Co.

5. The Viking Corporation.

E. Sprinklers:

1. Globe Fire Protection.

2. Reliable Automatic Sprinkler Co., Inc.

3. Tyco Fire Products, LP.

4. Victaulic Co.

5. The Viking Corporation.

F. Control Valves:

SEMO - 218940 21 10 00 - 6

1. American Fire Products Company.

2. Clow Valve Co.

3. Kennedy Valve.

4. Mueller Company.

5. NIBCO, Inc.

6. Reliable Automatic Sprinkler Co., Inc.

7. The Viking Corporation.

8. Tyco Fire Products, LP.

9. Victaulic Co.

10. Watts Regulator Company.

G. Pipe Hangers:

1. Allied Rubber & Gasket Co.

2. Anvil International, LLC.

3. Cooper B-Line/Tolco.

4. ERICO International Corp.

5. Ferguson Enterprises, Inc.

6. Hilti, Inc.

7. nVent CADDY.

8. PHD Manufacturing, Inc.

H. Other manufacturers desiring approval shall be in compliance with the Contract Documents. All manufacturers are acceptable where Listed in the applicable section of the UL Fire Protection Equipment Directory and comply with Division 01.

I. Submit other pipe materials, joining methods, and equipment not specified, but accepted by applicable NFPA standards and approved by Authority(ies) Having Jurisdiction, in accordance with Division 01.

2.2 PIPE, FITTINGS, AND SUPPORTS

A. Pipe and fittings - General:

1. Meet or exceed applicable NFPA standards.

2. Working pressure: Not less than 175 PSI.

3. Pipe shall be Schedule 40 black pipe. The following are not permitted:

a. Lightwall and Less than Schedule 10 pipe.

b. Plain end, pressure fit type fittings.

c. Hole cut mechanical tee fittings.

d. Plastic Pipe.

e. Field fabricated or welding pipe/fitting

SEMO - 218940 21 10 00 - 7

4. Corrosion Resistance Ratio (CRR) of all pipe used: Equal to or less than one.

5. Where no alternative exists for concelalling sprinkler system piping. The NPS

Architect must be consulted to coordinate the placement of all exposed sprinkler system piping. Sprinkler system pipe shall be installed using components appropriate fo the time period of the buildings’s original construction. All exposed couplings and fittings shall be cast iron or maliable stell. All exposed piping shall be Sch 40 black iron. The use of rool grooved or mechanical fittings shall not be allowed.

6. Paint sprinkler systems with the exception of the piping installed above suspended ceilings, and not exposed to public view. Clean, prime, and paint new sprinkler system piping, valves, hangers, accessories, and miscellaneous metal work as describe herein. Clean surfaces prior to painting. Immediately after cleaning, prime metal surfaces with SSPC Paint 25 or SSPC Paint 25 metal primer applied to a minimum dry film thickness of 1.5 MILS. Paint piping as called out on contract documents, applied to a minimum dry film thickness of 1.6 MILS. Exercise care to avoid painting sprinkler heads and operating devices.

Upon completion of painting, remove materials which were used to protect sprinkler heads and operating devices which have been inadvertently painted and provide new clean sprinkler heads and operating devices of the proper type.

B. Pipe, Below Ground:

1. Materials and fittings as allowed by NFPA 13 and NFPA 24.

C. Fittings:

1. Threaded:

a. Black cast iron, Class 150.

b. Black malleable iron.

2. Flanged:

a. Black cast iron, short body, Class 125.

b. Gaskets: Full face of 1/8 IN minimum red sheet rubber.

c. Flange bolts: ANSI B18.2.

1) Hexagon head machine bolts with heavy semi-finished hexagon head nuts, cadmium plated.

3. Welded: Black steel, standard weights.

4. Mechanical: ASTM A47.

SEMO - 218940 21 10 00 - 8

a. Malleable iron, 500 PSI working pressure.

b. Coupling gasket material: Butyl rubber.

c. UL listed.

d. Approved by FM, NFPA-13.

5. High temperature soldered:

a. Wrought copper.

b. Cast bronze.

D. Pipe supports:

1. All-purpose type, UL listed and FM approved.

2. Installation and spacing shall be in accordance with requirements of NFPA 13.

3. Hangers, hanger rods, and clamps constructed as approved by NFPA 13.

4. Exposed hangers and supports shall be installed using components appropriate for the time period of the buildings original construction. Black iron or wrought iron pipe hangers shall be used. Strap hangers, split ring hangers, Unistrut and similar modern hardware shall not be used.

2.3 ALARM AND SIGNAL DEVICES

A. Alarm and Signal Devices, General:

1. UL listed and FM approved.

2. Coordinate electrical requirements with electrical installer.

B. Alarm Devices:

1. Alarm pressure switch:

a. Shall signal Fire Alarm System Control Panel upon sensing change of pressure in fire system valve.

1) Switch shall automatically reset when pressure returns to normal.

b. Service: Normal.

SEMO - 218940 21 10 00 - 9

2. Local alarm devices:

a. General:

1) Provide local alarm on systems of sufficient size as indicated in

NFPA-13.

2) Use alarm bell and visible light alarm on electrically operated supplemental fire detection (valve release) systems.

3) Devices shall be weatherproof.

4) Operating Voltage: 24 VDC supplied by FACP or Auxiliary Power

Supply. The use of 120 VAC devices is not permitted.

b. Outside horn and strobe: UL listed, FM approved.

3. Valve tamper switch:

a. Shall signal Fire Alarm System Control Panel upon valve movement.

b. The switch contacts shall be rated at 10A, 125/250VAC and 2A, 30VDC.

c. Switches for butterfly valves to be UL approved.

d. Coordinate with fire alarm contractor for compatibility with the fire alarm system.

4. Waterflow detector:

a. Shall signal Fire Alarm System Control Panel when water flows in system.

b. Dry-pipe sprinkler system(s).

1) Pressure switch shall signal Fire Alarm System Control Panel upon drop in system nitrogen pressure.

2) 175 PSI rated.

3) 10.0 Amps at 125/250VAC, 2.0 Amps at 30VDC Resistive, 10 mAmps min. at 24 VDC.

4) Suitable for working pressure of 175 PSI with sensitivity adjusting screw.

5) Provide with contacts for remote signal wiring.

6) Coordinate with fire alarm contractor for compatibility with the fire alarm system.

2.4 FIRE ALARM SYSTEM CONTROL PANEL

A. Fire Alarm System Control Panel: See Division 28.

SEMO - 218940 21 10 00 - 10

2.5 FIRE PROTECTION SYSTEMS, WATER-BASED

A. General:

1. Provide sprinkler system types as designated on the Drawings.

2. Design basis of hydraulically designed sprinkler system in accordance with applicable NFPA Codes and Standards.

2.6 FIRE DEPARTMENT VALVES AND FIRE HOSE CABINETS

A. Fire Department Valves and Fire Hose Cabinets, General:

1. Components and assemblies UL listed and FM approved.

2. Valves: Minimum 175 PSI non-shock cold-water working pressure.

3. Outlet threads shall match local fire department standards.

4. Provide one 2-1/2 IN outlet and hose valve for each 250 GPM or fraction of fire sprinkler system demand (2 hose connections minimum).

5. Finish shall be bronze.

2.7 BACKFLOW PROTECTION DEVICES

A. Provide and install back flow preventer on the new fire protection service lead-in as shown on Fire Protection Drawings to prevent contamination of public water system.

B. The backflow preventer shall meet the minimum requirements:

1. Constructed of corrosion resistant materials.

2. Fully field rebuildable.

3. Flanged ends.

4. Rating: Water at 175 PSI working pressure and between to 110 DEGF.

5. Provide OS&Y or indicating butterfly inlet and outlet isolation valves.

6. Provide non-rising stem inlet and outlet isolation valves.

7. Approved by authority having jurisdiction.

8. UL listed and FM approved.

9. Provide back flow preventer forward flow test head arranged in accordance with

NFPA 13.

10. Double Check Detector:

a. Two independently operating check valves.

b. Bypass line with two independently operating check valves, water meter, three test cocks, and outlet shutoff valve. Bypass shall allow 8-10 GPM of flow before main-line assembly opens.

c. Provide four test cocks.

SEMO - 218940 21 10 00 - 11

d. Provide No. 1 test cock on inlet valve.

C. Backflow preventer forward-flow test header:

1. Provide one 2-1/2 IN. outlet and hose valve for each 250 GPM or fraction of fire sprinkler system demand.

2. Finish shall be bronze.

2.8 FIRE SYSTEM VALVES

A. Fire System Valves, General:

1. UL listed and FM approved.

2. Body: Ductile or cast iron.

3. Pressure rating: 175 PSI non-shock cold-water working pressure.

4. 2 IN and smaller: Threaded.

5. 2-1/2 IN and larger: Flanged or grooved.

6. Trim to meet NFPA requirements.

7. Trim to meet performance as indicated in descriptions of fire protection systems.

2.9 MANUAL VALVES

A. Isolation Valves:

1. Gate valves:

a. 2 IN and smaller: Gate valve, UL-FM, 175 PSI WWP, bronze body, union or screwed bonnet, solid wedge disc, OS&Y, threaded.

b. 2-1/2 IN and larger: Gate valve, UL-FM, 175 PSI WWP, cast iron body, bolted bonnet, resilient or solid wedge, OS&Y, flanged.

2. Butterfly valves:

a. 2 IN and smaller: Butterfly valve, UL listed, 175 PSI WWP, bronze body, stainless steel stem and disc, Viton seal, threaded.

b. 2-1/2 IN and larger: Butterfly valve, UL-FM, 175 PSI WWP, ductile iron body, O-Ring seals, aluminum-bronze or ductile-iron disc, stainless steel stem, Buna-N seal, manual geared operator with visual position indicator, lugged.

SEMO - 218940 21 10 00 - 12

3. Butterfly valves with tamper switches:

a. 2-1/2 IN and smaller: Butterfly valve, Butterfly valve, UL listed, 175 PSI WWP, bronze body, stainless steel stem and disc, Viton seal, threaded with tamper switch.

b. 3 IN and larger: Butterfly valve, UL-FM, 175 PSI WWP, coated cast or ductile iron body, aluminum bronze or ductile iron disk with EPDM coating, manual geared operator with visual position indicator, grooved.

B. Check Valves 2-1/2 IN and Larger: Check valve, T-pattern, horizontal swing, UL-FM, 175 PSI WWP, cast iron body, bolted bonnet, bronze trim, renewable bronze or cast-iron disc and seat, flanged. Example: Stockham G-939 or Check valve, in-line, spring-operated single or double door(s), UL-FM, 200 psi WWP, cast iron body, renewable bronze door and rubber or EPDM seat, stainless steel spring, wafer or grooved.

Example: Stockham WG-990.

C. Automatic Ball Drip Valve:

1. 1/2 IN straight or angle cast-brass ball drip shall close against pressure.

a. When pressure drops, valve shall open to drain pipe.

2.10 SPRINKLERS

A. Sprinklers - General:

1. Provide UL listed sprinklers of style and type required for service indicated.

2. Orifice: Sprinklers in systems sized from pipe schedules shall have 1/2 IN nominal orifices.

3. Finish of exposed parts: As indicated.

B. Sprinkler Types: Metallic fusible link or glass bulb.

C. Sprinkler Styles:

1. Upright:

a. Finish: Standard bronze.

SEMO - 218940 21 10 00 - 13

2. Pendant:

a. Finish: Standard bronze.

3. Pendant with escutcheon:

a. Finish: White.

4. Semi-recessed pendant:

a. Deflector: 1 to 1-1/2 IN below finished ceiling.

b. Escutcheon: Two-piece with 1/2 IN adjustment.

c. Removal of escutcheon and ceiling tile shall not disturb sprinkler or drop assembly.

d. Finish: White.

5. Concealed Pendant:

a. White cover plates.

b. Black cover plates (as noted in the fire protection plans).

6. Horizontal sidewall:

a. Finish: White.

7. Horizontal sidewall, extended coverage:

a. Finish: White.

8. Dry pendant:

a. For systems with piping that is subject to freezing.

b. Finish: White.

9. Attic:

a. Finish: Standard bronze.

SEMO - 218940 21 10 00 - 14

2.11 SYSTEM ACCESSORIES

A. Alarm-Test Device:

1. Optional replacement for alarm test loop.

2. Single device or unit that provides visual verification of waterflow in a fire sprinkler system and allows for draining of all or a portion of that system.

3. Contains sight glass, inspector test valve, auxiliary drain valve, and test orifice.

4. UL listed and FM approved.

B. Pressure Gages: UL listed and FM approved.

C. Spare Parts:

1. Sprinkler cabinet, Wall mounted:

a. Provide spare sprinklers of each type and sprinkler wrench for each type in quantities required by NFPA-13.

D. Sprinkler Guards:

1. UL listed.

2. Heavy duty welded wire.

3. Red baked enamel finish.

PART 3 - EXECUTION

3.1 GENERAL

A. Coordinate with other trades to ensure adequate space for equipment and piping placement.

B. Review Plans, Specifications and Shop Drawings of other trades to coordinate work.

C. Do not begin installation until after Agency approvals have been submitted to the COR.

D. Test systems in accordance with System Standards, manufacturers' instructions, and applicable NFPA publications.

SEMO - 218940 21 10 00 - 15

E. Install systems in accordance with System Description, manufacturers' instructions, and approved Shop Drawings.

1. Modifications to system design or arrangement after approval of Drawings may only be made after receiving written approval of The COR and authority(ies) having jurisdiction.

2. Such modifications do not include minor relocations in piping or sprinkler placement.

3. Make revisions in accordance with NFPA.

F. Maintain fire and smoke ratings where mechanical items penetrate fire and fire/smoke rated building elements.

G. Field quality control: Give advance notice and arrange for field tests and inspections by authority(ies) having jurisdiction.

3.2 PIPING, SPRINKLERS, AND SUPPORTS

A. General:

1. Install in strict accord with approved Shop Drawings.

2. Install all piping, valves, and connections from mains to building fire protection systems.

3. Provide an impairment plan in accordance with NFPA 25 where a fire protection system is out of service for more than 10 HRS in a 24 HRS period. Coordinate schedule with National Park Service Contracting Officer and receive approval for the fire protection system impairment plan with the local authority having jurisdiction prior to proceeding with work.

B. Piping - General:

1. Install sprinkler piping within first 6 IN of space under floor construction.

a. Use existing wall/floor penetrations whenever possible.

1) If reusing an existing wall/floor penetration is not possible, contractor shall receive NPS approval for new penetration location.

b. Conceal pipe in walls to match locations where it was removed.

c. Where conditions of construction require piping installation at a lower elevation, route piping to avoid interference with work of other trades.

SEMO - 218940 21 10 00 - 16

2. Offset, crossover and otherwise route piping to install system in available space.

a. Not every offset is indicated.

3. Pitch branch lines, cross mains, feed mains and riser to drains.

4. Install white escutcheons on finished-area sides of pipe penetrations.

a. Secure escutcheons so they make contact with floor, wall, or ceiling.

5. Flush outside fire-main piping prior to connecting to inside system.

a. Flush must be witnessed by COR or AHJ representative and properly documented.

C. Sprinklers - General:

1. Install in accord with approved Shop Drawings.

2. Modifications made to system design or arrangement after approval of Drawings by NPS may only be made after receiving written approval of authority and the

COR.

3. Such modifications do not include minor relocations in piping or head placement.

4. Make all revisions in accord with NFPA 13.

5. Provide white plated escutcheon plates at pipe penetrations of ceilings, floors and walls.

6. Install sprinklers to provide and maintain minimum 18 IN clear between bottom of deflector and top of storage, files, shelving, and cabinets.

7. Standard-application temperature rating:

a. Sprinkler type:

1) Glass bulb: 155 DEGF.

2) Fusible link: 165 DEGF.

b. Where non-standard applications exist, use higher rating.

1) Use sprinklers rated at least 50 DEGF higher than anticipated ambient temperature.

D. Supports: Install in accordance with NFPA-13.

SEMO - 218940 21 10 00 - 17

E. Testing - General:

1. Test sprinkler piping, including outside supplies, under hydrostatic pressure of 200 PSI for 2 HRS.

a. Prove system tight to satisfaction of the COR. Test must be witnessed by COR or AHJ representative and properly documented.

b. Inside piping shall indicate no leakage.

c. Leakage in underground piping shall be in accordance with NFPA-24.

F. Piping and Sprinkler Applications by Room Types:

1. Attic: Attic sprinklers.

2. Electrical rooms/closets:

a. Sprinkler styles: Upright, pendant, or horizontal sidewall (standard or extended coverage).

b. Provide sprinkler guards.

3. Finished rooms (rooms with ceilings):

a. Sprinkler styles:

1) Semi-recessed.

2) Concealed.

b. Locate sprinklers to coordinate with ceiling layout.

1) Locate sprinklers centered in ceiling tile and in center of metal strip in linear metal ceilings, if such location makes added sprinklers necessary, provide added sprinklers as required to meet code.

4. Mechanical equipment rooms:

a. Sprinkler styles: Upright, pendant, or horizontal sidewall (standard or extended coverage).

1) Glass bulb temperature rating: 200 DEGF.

2) Fusible link temperature rating: 220 DEGF.

SEMO - 218940 21 10 00 - 18

b. Provide sprinkler guards.

5. Unfinished rooms (rooms without ceilings):

a. Sprinkler styles: Upright, pendant, or horizontal sidewall (standard or extended coverage).

b. Provide sprinkler guards in all mechanical and electrical rooms.

3.3 ALARM AND SIGNAL DEVICES

A. Install Valve Tamper Switch on each Control Valve Indicated Below:

1. Control valves at fire system valves.

2. Post indicator valves.

3.4 FIRE PROTECTION SYSTEMS

A. Factory trained Engineer shall supervise installation of fire protection systems.

B. Factory Trained Engineer Shall Provide Following Services:

1. Supervise installation of fire protection systems.

2. Instruct Contracting Officer in systems operations.

C. Test completed alarm systems including control and signal circuits wired by Electrical installer.

1. Coordinate with electrical.

2. Complete testing prior to substantial completion.

3. Final acceptance testing must be witnessed by the COR or AHJ representative and properly documented.

3.5 FIRE DEPARTMENT CONNECTIONS AND FIRE DEPARTMENT VALVES

A. Install fire department connections and fire department valves at height required by authority having jurisdiction.

1. Position valve to allow 12 IN spanner wrench clearance for connecting hoses.

SEMO - 218940 21 10 00 - 19

3.6 MANUAL VALVES

A. Provide Control Valves at Following Locations: Fire system valves.

B. Provide Check Valves at Following Locations: Fire department connection.

C. Install Indicator Posts Approximately 3 FT above grade.

D. Provide Automatic Ball Drip at Low Points.

1. Piping between outside fire department connection and check valve.

E. Provide Valve Boxes at each Underground Valve (except PIV's).

3.7 SYSTEM ACCESSORIES

A. Drains:

1. Permit complete draining of systems without disconnection of piping.

2. Drain consists of dirt leg, valve, and piping.

3. Extend drain piping to exterior.

a. A 30 x 12 x 3 IN splash block will be required below each exterior drain location.

1) Splash block shall be concrete.

2) Slope away from discharge point.

4. Required locations:

a. At low points of systems.

b. At alarm test loops.

c. At fire system valves.

d. At bases of risers and standpipes.

1) 1-1/2 IN hose threads that match local fire department threads may be provided instead of extending piping.

SEMO - 218940 21 10 00 - 20

5. Size drain valve and piping according to alarm test loop sizing criteria in this Section.

6. At offsets, plugs may be substituted for drains when approved by authority having jurisdiction.

B. Pressure Gages:

1. Provide at following locations:

a. At service entrance to building.

b. At inlet and outlet of pressure reducing valves.

c. At top of each sprinkler riser.

2. Provide shutoff valve and drain for each gage.

C. Sprinkler Cabinets: Install cabinets as required by NFPA 13.

3.8 ELECTRICAL WIRING

A. Provide the Following:

1. Wiring diagrams for devices.

2. Supplemental fire detection systems and their wiring.

3. Wiring not specified but required to provide an operating system.

B. Electrical Installer will Provide the Following:

1. Alarm and signal device wiring:

a. Tamper switches: Supervised wiring to Fire Alarm System Control Panel.

b. Alarm pressure switches: Supervised wiring to Fire Alarm System Control

Panel.

c. Pressure supervising switches: Supervised wiring to Fire Alarm System

Control Panel.

d. Supervised wiring from waterflow detector to outside alarm bell.

2. Supplemental fire detection systems:

a. Supervised wiring to Fire Alarm System Control Panel.

SEMO - 218940 21 10 00 - 21

END OF SECTION

D I V I S I O N 2 2

PLUMBING

SEMO - 218940 22 10 16 - 1

PLUMBING PIPING

SECTION 22 10 16

PLUMBING PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. Furnish labor, materials, tools, equipment, and services for Plumbing Piping, as indicated, in accordance with provisions of Contract Documents.

B. Systems and Products Included:

1. Systems:

a. Cold, hot, and circulating domestic water piping systems within building and to 5 FT outside building wall.

b. Drainage piping systems:

1) Soil, waste, vent, indirect, and storm piping within building and to 5 FT outside building wall.

c. Pressure drainage piping.

d. Exposed piping in finished areas.

2. Products:

a. Backflow protection devices.

b. Cleanouts.

c. Drains:

1) Floor drains.

d. Flashings.

e. Traps.

f. Valves:

1) Automatic trap primer valves.

2) Manual valves, potable water.

g. Water hammer arresters.

C. Definitions:

1. Caulked: Tamped lead and oakum joint.

2. Drainage piping: Soil, waste, vent, acid waste, acid vent, indirect, and storm piping.

3. Brazing: High temperature soldering.

4. Pressure drainage piping: Branch piping from discharge of sump pump or sewage ejector to connection with gravity drainage piping.

D. Sustainable Design Requirements:

1. See Section 01 81 13.

E. Completely coordinate with work of other trades.

1.2 QUALITY ASSURANCE

A. Outside Utilities: See Section 33 10 10.

B. Fire Protection Systems: See Section 21 10 00.

C. American Water Works Association Standard AWWA C601: Sterilization Standard.

D. Plumbing and Drainage Institute Standard WH201: Water hammer arrester standard.

E. Plumbing and Drainage Institute Standard G10: Grease interceptor standard.

F. American Society for Sanitary Engineering Standard ASSE 1001: Pipe Applied Atmospheric Type Vacuum Breakers.

G. American Society for Sanitary Engineering Standard ASSE 1013: Reduced Pressure Principle Backflow Preventers and Reduced Pressure Fire Protection Principle Backflow Preventers.

SEMO - 218940 22 10 16 - 2

H. Standard: American Society for Sanitary Engineering Standard ASSE 1020: Pressure Vacuum Breaker Assembly.

I. Comply with NSF 61 for potable domestic water piping and components that come in contact with potable water.

1.3 SUBMITTALS

A. Product Data:

1. Include sufficient information to verify compliance with specifications:

a. Drains.

b. Valves.

c. Water hammer arresters.

2. Sustainable Design: [ ]

B. Contract Closeout Information:

1. Pressure test reports.

2. Disinfection test report.

3. Operation and Maintenance Data.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Vacuum Breakers Backflow Protection Devices:

1. Base:

a. Watts Regulator.

2. Optional:

a. Febco.

b. Wilkins Regulator.

B. Cleanouts and Drains:

1. Base:

a. Wade Division/Tyler Pipe.

2. Optional:

a. Watts Drainage - Ancon.

b. Josam Company.

c. JONESPEC Plumbing Products.

d. Jay R. Smith Manufacturing Co.

e. Zurn Industries, Inc.

f. Mifab.

C. Automatic Trap Primer Valves:

1. Base:

a. Precision Plumbing Products.

2. Optional:

a. Jay R. Smith Manufacturing Co.

b. Wade Division/Tyler Pipe.

D. Water Hammer Arresters:

1. Base:

a. Wade Division/Tyler Pipe.

2. Optional:

a. Jay R. Smith Manufacturing Co.

b. Josam Company.

c. Zurn Industries, Inc.

E. Other manufacturers desiring approval comply with Section 01 61 00.

SEMO - 218940 22 10 16 - 3

2.2 PIPE AND FITTINGS

A. Domestic Water Piping:

1. Domestic water piping at service entrance from 1 FT inside building to 5 FT outside: Same as indicated for outside utilities.

2. 2 IN and smaller after service entrance:

a. Above grade:

1) Copper, ASTM B88, type L, with lead free solder joints, and wrought copper or cast brass fittings.

2) Optional fitting:

a) Ring Seal Crimp fitting system: With approval of local authority having jurisdiction.

b. Below grade:

1) Copper, ASTM B88, type K soft, with brazed joints and wrought copper or cast brass fittings.

2) Where below grade run of piping is shorter than 50 FT, below-grade joints are not acceptable.

3. 2-1/2 IN and larger after service entrance:

a. Non-softened cold water:

1) Copper, type L, with soldered joints and wrought copper or cast brass fittings.

b. Hot water:

1) Copper, type L, with solder joints and wrought copper or cast brass fittings.

B. Drainage piping (soil, waste, vent, indirect, and storm):

1. Underground: service weight cast iron, bell and spigot, conforming to ASTM A74 as manufactured by AB&I, Charlotte, or Tyler, with lubricated rubber compression joints conforming to ASTM C1563 or lead and oakum.

2. Above ground: Cast iron no-hub system, manufactured by AB&I, Charlotte, or Tyler, with neoprene gasket conforming to ASM C564, type 302 stainless steel shield and four clamp (pipe sizes 4” or less) or six clamp (pipe sizes larger than 4”) heavy-duty stainless steel clamps, equal to Anaco Husky SD 4000.

3. All cast iron soil pipe, fittings and clamps shall conform to the requirements of CISPI Standard 301, ASTM A-888 or ASTM A-74 and be marked with the collective trademark of the Cast Iron Soil Pipe Institute. All pipe and fittings shall be certified and marked NSF.

C. Pressure drainage piping:

1. Copper pressure piping, Type L with long radius elbows and bronze valves.

D. Exposed piping in finished areas:

1. Chrome or nickel plated brass to wall or floor.

2. Piping 2 IN and larger may be provided with chrome or nickel plated brass sleeves to cover pipe and fittings.

a. See Section 23 05 00.

E. Trap primer pipe between primer device and drain:

1. Above grade: Copper, type L, with solder joints, and wrought copper or cast brass fittings.

2. Below grade: Copper, type K soft, with solder joints, and wrought copper or cast brass fittings.

2.3 BACKFLOW PROTECTION DEVICES

A. Backflow protection devices, general:

1. Approved by local Public Utilities Bureau and the state Environmental Protection Agency.

B. Pressure type vacuum breakers (PTVB):

SEMO - 218940 22 10 16 - 4

1. Designed to protect against back siphonage in continuous pressure piping systems. Tested and certified in conformance with ASSE Standard No. 1020.

2. Bronze body and lightweight internal floats designed to eliminate spillage.

3. Provide isolation ball valve on inlet and outlet of PTVB.

4. Provide outlet connection on VB compatible with equipment/fixture being served.

5. Mount bottom of VB at least 12 IN above the flood level rim of the equipment/fixture being served.

6. Provide test cocks.

7. Match VB size to pipe size indicated on plans.

C. Atmospheric vacuum breakers (VB):

1. Bronze body and lightweight internal float designed to eliminate spillage. Tested and certified in conformance with ASSE Standard No. 1001.

2. Provide isolation valve immediately upstream of VB.

3. Provide outlet connection on VB compatible with equipment/fixture being served.

4. Mount bottom of VB at least 6 IN above the flood level rim of the equipment/fixture being served.

5. Match VB size to pipe size indicated on plans.

2.4 CLEANOUTS

A. General:

1. Provide flashing collars and clamps for CO bodies installed in floors with finishes installed over waterproofing.

a. Coordinate with Division 09 and Room Finish installers.

2. Dimensions are nominal.

3. Body material (unless indicated otherwise): Coated cast iron.

4. Cleanout plugs:

a. Extra heavy, threaded, tapered, brass plug with solid hexagonal nut.

b. Comply with Plumbing Code.

c. Provide with Unified Thread Standard.

5. Cleanouts on lines completely accessible from within pipe chases do not require covers.

6. Cleanouts in exposed piping in equipment rooms do not require special covers.

B. Interior Floor Mounted Cleanouts:

1. Extra heavy, flanged, cast iron ferrule, tapped for cleanout plug with spigot or inside caulk outlet.

C. Example:

1. Two piece, threaded, adjustable housing.

a. ANSI load class: Light duty, unless noted otherwise.

b. Example: Wade 6000.

2. Top and cover as specified below by floor finish.

a. Resilient tile and sheet finish: Round flange top with scoriated cover.

b. Ceramic tile finish: Square flange top with scoriated cover.

c. Poured finish: Round, wide flange top with scoriated cover.

d. Concrete finish in unfinished areas:

1) Heavy, round frame; satin bronze, scoriated tractor top.

2) ANSI load class: Heavy duty.

3) Example: Wade 6000Z.

D. Cleanouts in vertical piping:

1. Tapped cleanout tee.

2. Extra heavy, threaded, brass plug with solid hexagonal nut.

E. Cleanouts in hubs of combination wye and eighth bends or wyes.

1. Tapped spigot.

2. Extra heavy, threaded, brass plug with solid hexagonal nut.

F. Cleanouts at ends of hubless combination wye and 1/8th bends or wyes.

SEMO - 218940 22 10 16 - 5

1. Blind plug.

G. Covers over cleanouts in concealed vertical piping:

1. Square, nickel bronze frame with secured, smooth, stainless steel access cover.

2. 6 x 6 IN for pipe sizes 4 IN and less.

3. 9 x 9 for pipe sizes 5 IN and larger.

4. Example: Wade W-8480-S.

H. Exterior cleanouts: See detail on plans.

2.5 DRAINS

A. Drains - General:

1. Provide flashing clamps with seepage openings for drain bodies with flashing collars being installed in floors with finishes installed over waterproofing.

a. Coordinate with Division 09 and Room Finish installers.

2. Provide underdeck clamps for drain bodies except those installed in slabs on grade.

B. Air Gap Fittings:

1. Inlet: Female IPS or collar with set screw.

2. Outlet: Spigot or IPS.

3. Material: Cast iron or bronze.

4. Minimum air gap area: 2 times inlet area.

5. Examples: Jay R. Smith 3950 series.

C. Floor drains:

1. General:

a. Dimensions are nominal.

b. Provide trap primer taps where trap primer valves are required: See paragraph on trap primer valves.

c. Material (unless indicated otherwise): Coated cast iron.

d. Manufacturer and model number: see plumbing fixture schedule.

D. Floor sinks:

1. General:

a. Dimensions are nominal.

b. Provide trap primer taps where trap primer valves are required: See paragraph on trap primer valves.

c. Material (unless indicated otherwise): Enamel coated cast iron, dome bottom strainer and sediment bucket, ½ stainless steel grate with stabilizing leg.

2. Manufacturer and model number: J.R. Smith 3009

2.6 DRIP PANS OVER CRITICAL AREAS

A. Drip pans:

1. Field or shop fabricated: See detail.

2.7 FLASHINGS

A. On floors above grade, allow for flashings provided by others at penetrations in floors with finishes installed over waterproofing.

1. Coordinate with Division 09 and Room Finish installers.

2.8 TRAPS

A. Traps, general:

1. Cast brass or cast iron, one piece pattern, 3 IN minimum seal , except traps for drains used in mechanical rooms, which shall be of similar type cast iron but deep seal P-traps having a minimum 4.75 inch seal..

2. Same material, coating, and finish as piping system into which they are installed except traps 2 IN NPS and under, not buried in earth, shall be cast brass with union and cleanout.

3. Place trap cleanouts in accessible locations.

SEMO - 218940 22 10 16 - 6

B. Provide deep seal traps for drain bodies in ventilation housings: Traps need to maintain seal against static pressure in fan housing.

C. Traps for drains with buried outlet: Cast iron P-traps, unless otherwise indicated.

2.9 VALVES

A. Automatic trap primer valves.

1. General:

a. Rebuildable.

b. Integral vacuum breaker on drain branch.

c. Connections: Soldered or threaded.

d. Provide trap primers as indicated on plans.

2. Automatic trap primer valve:

a. Serves single drain.

b. 1/2 IN bronze.

c. Designed to be installed in the supply line to an individual fixture with branch extended to drain.

d. Examples: Precision Products PP-1.

3. Automatic trap primer valve:

a. Serves one to four drains.

b. 1/2 IN brass.

c. Integral backflow preventer.

d. Designed to be installed at end of dead-end line with continuation to drain.

1) Activated by 5 PSI drop or more in main.

e. Automatically adjusts to line pressures between 35 and 75 PSIG.

f. Example: Precision Plumbing Products Prime Rite.

4. Threaded brass or copper sweat body with stainless steel internal parts.

5. Provide a metal identification tag with chain for each installed valve.

a. Identify zone or location, valve model number, flow rate, direction of flow, and differential pressure range.

6. Provide with integral unions to allow field exchange of internal components without removing valve body from pipeline.

7. Provide manual valve upstream and downstream of each valve.

B. Bronze Ball Valves, Two-Piece with Full Port and Stainless-Steel Trim, Threaded Ends:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Apollo Flow Controls; Conbraco Industries, Inc.

b. Jomar Valve.

c. KITZ Corporation.

d. Milwaukee Valve Company.

e. NIBCO INC.

2. Description:

a. Standard: MSS SP-110 or MSS SP-145.

b. CWP Rating: 600 psig.

c. Body Design: Two piece.

d. Body Material: Bronze.

e. Ends: Threaded.

f. Seats: PTFE.

g. Stem: Stainless steel.

h. Ball: Stainless steel, vented.

i. Port: Full.

SEMO - 218940 22 10 16 - 7

C. Individual-Fixture, Water Tempering Valves:

1. Standard: ASSE 1016, thermostatically controlled, water tempering valve.

2. Pressure Rating: 125 psig minimum unless otherwise indicated.

3. Body: Bronze body with corrosion-resistant interior components.

4. Temperature Control: Adjustable.

5. Inlets and Outlet: Threaded.

6. Finish: Rough or chrome-plated bronze.

7. Tempered-Water Setting: 105-F unless noted otherwise.

D. Water Heater Thermostatic, Water Mixing Valves

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Apollo Flow Controls; Conbraco Industries, Inc.

b. Armstrong International, Inc.

c. Cash Acme; a division of Reliance Worldwide Corporation.

d. Lawler Manufacturing Company, Inc.

e. Leonard Valve Company.

f. Symmons Industries, Inc.

g. Zurn Industries, LLC.

2. Standard: ASSE 1017.

3. Provide thermostatic controller with integral check stops, removable cartridge with stainless steel piston and thermal motor or bimetallic thermostat. Standard rough bronze finish. Max pressure 125 psi. Provide thermometer on outlet, cut off valves on inlet and outlet. For systems with hot water circulating pumps (for temperature maintenance) a by-pass from the “pump discharge/heater cold water inlet” to the mixing valve “cold water inlet” shall be provided with a check valve.

4. Pressure Rating: 125 psig minimum unless otherwise indicated.

5. Type: Exposed-mounted, thermostatically controlled, water mixing valve.

6. Material: Bronze body with corrosion-resistant interior components.

7. Connections: Threaded union inlets and outlet.

8. Accessories: Manual temperature control, check stops on hot- and cold-water supplies, and adjustable, temperature-control handle.

9. Tempered-Water Setting: see plans.

10. Valve Finish: Chrome plated.

11. Piping Finish: Copper.

2.10 WATER HAMMER ARRESTERS

A. Engineered, and certified in accordance with Plumbing and Drainage Institute (PDI) Standard

WH-201.

B. Type and construction:

1. Bellows type and constructed entirely of stainless steel.

2. Piston type is not acceptable.

C. Water hammer arrestors shall be bellows type and constructed entirely of stainless steel.

2.11 PIPE HANGER SPACING

A. See 23 05 29 for general hanger requirements, with spacing for plumbing piping per IPC 2021 or below (except not less than two hangers per length of pipe):

SEMO - 218940 22 10 16 - 8

1. Cast Iron pipe: 5'-0" spacing maximum and at each hub, on both sides of horizontal no-hub fittings, and at each trap.

2. Steel Pipe: 6'-0" spacing up to 2" diameter and 10'-0" for 2-1/2" diameter and larger.

3. Copper pipe: 6'-0" spacing up 2" diameter and 10'-0" for 2-1/2" diameter and larger.

4. Plastic pipe: 4'0" for up to 2" diameter and 6'0" for 2-1/2" to 6" diameter, 10'0" for pipes larger than 6" diameter.

B. Hanger Locations in wood and light gage structures: No multiple hangers shall be permitted on a single building wooden or light gage steel member. Hangers shall be staggered to distribute loads evenly over the structure and additional longitudinal structural members provided to evenly distribute loads. Provide hanger locations as part of the required piping shop drawings.

PART 3 - EXECUTION

3.1 GENERAL

A. General:

1. Install piping as indicated and to provide fixtures and items of equipment with proper drainage, vent, and water connections as required by governing codes.

2. Hold piping as close to structure as possible to maintain maximum head room.

3. Run piping concealed wherever possible.

4. Under no circumstances reduce pipe size indicated without written consent of Contracting

Officer .

5. Size branches to individual fixtures as scheduled.

6. Consult the following before roughing in piping:

a. Manufacturer's data.

b. Large scale Architectural, and Mechanical Drawings of rooms containing equipment and plumbing fixtures.

7. Stub piping through wall directly behind item being served (e.g., equipment, plumbing fixtures, vending machines).

a. Cap and protect until such time as installation is performed.

b. Exception: Upon approval of Architect, piping mains and/or branches may be run in lab benches, in built in counters, and in cabinet work.

8. Plug or cap piping immediately after installation.

9. Install chromed escutcheons on finished area…