36C25518R0283-003.pdf

Renovate Vacated Surgery, Ward 6 589A4-16-102

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SECTION 22 05 23

GENERAL-DUTY VALVES FOR PLUMBING PIPING

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section describes the requirements for general-duty valves for domestic water systems.

B. A complete listing of all acronyms and abbreviations are included in

Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA AND SAMPLES.

C. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.3 APPLICABLE PUBLICATIONS

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

B. American Society of Mechanical Engineers (ASME):

A112.14.1-2003 .........Backwater Valves

C. American Society of Sanitary Engineering (ASSE):

1001-2008 ..............Performance Requirements for Atmospheric Type

Vacuum Breakers

1003-2009 ..............Performance Requirements for Water Pressure

Reducing Valves for Domestic Water Distribution

Systems

1011-2004 ..............Performance Requirements for Hose Connection

Vacuum Breakers

1013-2011 ..............Performance Requirements for Reduced Pressure

Principle Backflow Preventers and Reduced

Pressure Principle Fire Protection Backflow

Preventers

1015-2011 ..............Performance Requirements for Double Check

Backflow Prevention Assemblies and Double Check

Fire Protection Backflow Prevention Assemblies

1017-2009 ..............Performance Requirements for Temperature

Actuated Mixing Valves for Hot Water

Distribution Systems

1020-2004 ..............Performance Requirements for Pressure Vacuum

Breaker Assembly

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1035-2008 ..............Performance Requirements for Laboratory Faucet

Backflow Preventers

1069-2005 ..............Performance Requirements for Automatic

Temperature Control Mixing Valves

1070-2004 ..............Performance Requirements for Water Temperature

Limiting Devices

1071-2012 ..............Performance Requirements for Temperature

Actuated Mixing Valves for Plumbed Emergency

Equipment

D. American Society for Testing and Materials (ASTM):

A126-2004(R2009) .......Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings

A276-2013a .............Standard Specification for Stainless Steel Bars and Shapes

A536-1984(R2009) .......Standard Specification for Ductile Iron

Castings

B62-2009 ...............Standard Specification for Composition Bronze or Ounce Metal Castings

B584-2013 ..............Standard Specification for Copper Alloy Sand

Castings for General Applications

E. International Code Council (ICC):

IPC-2012 ...............International Plumbing Code

F. Manufacturers Standardization Society of the Valve and Fittings

Industry, Inc. (MSS):

SP-25-2008 .............Standard Marking Systems for Valves, Fittings, Flanges and Unions

SP-67-2011 .............Butterfly Valves

SP-70-2011 .............Gray Iron Gate Valves, Flanged and Threaded

Ends

SP-71-2011 .............Gray Iron Swing Check Valves, Flanged and

Threaded Ends

SP-80-2013 .............Bronze Gate, Globe, Angle, and Check Valves

SP-85-2011 .............Gray Iron Globe & Angle Valves, Flanged and

Threaded Ends

SP-110-2010 ............Ball Valves Threaded, Socket-Welding, Solder

Joint, Grooved and Flared Ends

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G. National Environmental Balancing Bureau (NEBB):

7th Edition 2005 Procedural Standards for Testing, Adjusting, Balancing of Environmental Systems

H. NSF International (NSF):

61-2012 ................Drinking Water System Components – Health

Effects

372-2011 ...............Drinking Water System Components – Lead Content

I. University of Southern California Foundation for Cross Connection

Control and Hydraulic Research (USC FCCCHR):

9th Edition ............Manual of Cross-Connection Control

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, and

SAMPLES.

B. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 22 05 23, GENERAL-DUTY VALVES FOR PLUMBING

PIPING”, with applicable paragraph identification.

C. Manufacturer's Literature and Data Including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

1. Ball Valves.

2. Balancing Valves.

3. Check Valves.

4. Thermostatic Mixing Valves.

D. Test and Balance reports for balancing valves.

E. Complete operating and maintenance manuals including technical data sheets and information for ordering replaceable parts:

1. Include complete list indicating all components of the systems.

2. Diagrams shall have their terminals identified to facilitate installation, operation and maintenance.

3. Piping diagrams of thermostatic mixing valves to be installed.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Valves shall be prepared for shipping as follows:

1. Protect internal parts against rust and corrosion.

2. Protect threads, flange faces, grooves, and weld ends.

3. Set ball and plug valves open to minimize exposure of functional surfaces.

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4. Block check valves in either closed or open position.

B. Valves shall be prepared for storage as follows:

1. Maintain valve end protection.

2. Store valves indoors and maintain at higher than ambient dew point temperature.

PART 2 - PRODUCTS

2.1 VALVES, GENERAL

A. Asbestos packing and gaskets are prohibited.

B. Bronze valves shall be made with dezincification resistant materials.

Bronze valves made with copper alloy (brass) containing more than 15 percent zinc shall not be permitted.

C. Valves in insulated piping shall have 50 mm or DN50 (2 inch) stem extensions and extended handles of non-thermal conductive material that allows operating the valve without breaking the vapor seal or disturbing the insulation. Memory stops shall be fully adjustable after insulation is applied.

D. All valves used to supply potable water shall meet the requirements of

NSF 61 and NSF 372.

2.2 SHUT-OFF VALVES

A. Cold, Hot and Re-circulating Hot Water:

1. 50 mm or DN50 (2 inches) and smaller: Ball, MSS SP-110, Ball valve shall be full port three piece or two piece with a union design with adjustable stem package. Threaded stem designs are not allowed. The ball valve shall have a SWP rating of 1035 kPa (150 psig) and a CWP rating of 4138 kPa (600 psig). The body material shall be Bronze

ASTM B584, Alloy C844. The ends shall be non-lead solder.

2.3 BALANCING VALVES

A. Hot Water Re-circulating, 75 mm or DN75 (3 inches) and smaller manual balancing valve shall be of bronze body, brass ball construction with glass and carbon filled TFE seat rings and designed for positive shutoff. The manual balancing valve shall have differential pressure read-out ports across the valve seat area. The read out ports shall be fitting with internal EPT inserts and check valves. The valve body shall have 8 mm or DN8 NPT (1/4 inch NPT) tapped drain and purge port.

The valves shall have memory stops that allow the valve to close for service and then reopened to set point without disturbing the balance position. All valves shall have calibrated nameplates to assure specific valve settings.

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2.4 CHECK VALVES

A. 75 mm or DN75 (3 inches) and smaller shall be Class 125, bronze swing check valves with non-metallic disc suitable for type of service. The check valve shall meet MSS SP-80 Type 4 standard. The check valve shall have a CWP rating of 1380 kPa (200 psig). The check valve shall have a

Y pattern horizontal body design with bronze body material conforming to ASTM B62, solder joints, and PTFE or TFE disc.

2.5 THERMOSTATIC MIXING VALVES

A. Thermostatic Mixing Valves shall comply with the following general performance requirements:

1. Shall meet ASSE requirements for water temperature control.

2. The body shall be cast bronze or brass with corrosion resistant internal parts preventing scale and biofilm build-up. Provide chrome-plated finish in exposed areas.

3. No special tool shall be required for temperature adjustment, maintenance, replacing parts and disinfecting operations.

4. Valve shall be able to be placed in various positions without making temperature adjustment or reading difficult.

5. Valve finish shall be chrome plated in exposed areas.

6. Valve shall allow easy temperature adjustments to allow hot water circulation. Internal parts shall be able to withstand disinfecting operations of chemical and thermal treatment of water temperatures up to 82°C (180°F) for 30 minutes or 50 mg/L (50 ppm) chlorine residual concentration for 24 hours.

7. Parts shall be easily removed or replaced without dismantling the valves, for easy scale removal and disinfecting of parts.

8. Valve shall have a manual adjustable temperature control with locking mechanism to prevent tampering by end user. Outlet temperature shall be visible to ensure outlet temperature does not exceed specified limits, particularly after thermal eradication procedures.

9. Provide mixing valves with integral check valves with screens and stop valves.

B. Water Temperature Limiting Devices:

1. Application: Single plumbing fixture point-of-use such as sinks or lavatories.

2. Standard: ASSE 1070.

3. Pressure Rating: 861 kPa (125 psig).

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4. Type: Thermostatically controlled water mixing valve set at 43 degrees C (110 degrees F).

5. Connections: Threaded union, compression or soldered inlets and outlet.

6. Upon cold water supply failure the hot water flow shall automatically be reduced to 0.2 gpm maximum.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Valve interior shall be examined for cleanliness, freedom from foreign matter, and corrosion. Special packing materials shall be removed, such as blocks, used to prevent disc movement during shipping and handling.

B. Valves shall be operated in positions from fully open to fully closed.

Guides and seats shall be examined and made accessible by such operations.

C. Threads on valve and mating pipe shall be examined for form and cleanliness.

D. Mating flange faces shall be examined for conditions that might cause leakage. Bolting shall be checked for proper size, length, and material. Gaskets shall be verified for proper size and that its material composition is suitable for service and free from defects and damage.

E. Do not attempt to repair defective valves; replace with new valves.

3.2 INSTALLATION

A. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown.

B. Valves shall be located for easy access and shall be provide with separate support. Valves shall be accessible with access doors when installed inside partitions or above hard ceilings.

C. Valves shall be installed in horizontal piping with stem at or above center of pipe.

D. Valves shall be installed in a position to allow full stem movement.

E. Check valves shall be installed for proper direction of flow and as follows:

1. Swing Check Valves: In horizontal position with hinge pin level and on top of valve.

F. Install temperature-actuated water mixing valves with check stops or shutoff valves on inlets.

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1. Install thermometers if specified.

G. If an installation is unsatisfactory to the COR, the Contractor shall correct the installation at no cost to the Government.

3.3 LABELING AND IDENTIFYING

A. Equipment Nameplates and Signs: Install engraved plastic-laminate equipment nameplate or sign on or near each of the following:

1. Calibrated balancing valves.

3.4 ADJUSTING

A. Valve packing shall be adjusted or replaced after piping systems have been tested and put into service but before final adjusting and balancing. Valves shall be replaced if persistent leaking occurs.

B. Set field-adjustable flow set points of balancing valves and record data. Ensure recorded data represents actual measured or observed conditions. Permanently mark settings of valves and other adjustment devices allowing settings to be restored. Set and lock memory stops.

After adjustment, take measurements to verify balance has not been disrupted or that such disruption has been rectified.

C. Set field-adjustable temperature set points of temperature-actuated water mixing valves.

D. Testing and adjusting of balancing valves shall be performed by an independent NEBB Accredited Test and Balance Contractor. A final settings and flow report shall be submitted to the VA Contracting

Officer’s Representative (COR).

- - E N D - - -

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SECTION 22 07 11

PLUMBING INSULATION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Field applied insulation for thermal efficiency and condensation control for the following:

1. Plumbing piping.

2. Re-insulation of plumbing piping and or replacement of any part of existing insulation system (insulation, vapor retarder jacket, protective coverings/jacket) damaged during construction.

B. Definitions:

1. ASJ: All Service Jacket, Kraft paper, white finish facing or jacket.

2. Air conditioned space: Space having air temperature and/or humidity controlled by mechanical equipment.

3. All insulation systems installed within supply, return, exhaust, relief and ventilation air plenums shall be limited to uninhabited crawl spaces, areas above a ceiling or below the floor, attic spaces, interiors of air conditioned or heating ducts, and mechanical equipment rooms shall be noncombustible or shall be listed and labeled as having a flame spread indexes of not more than

25 and a smoke-developed index of not more than 50 when tested in accordance with ASTM E84 or UL 723. Note: ICC IMC, Section 602.2.1.

4. Cold: Equipment or piping handling media at design temperature of 15 degrees C (60 degrees F) or below.

5. Concealed: Piping above ceilings and in chases, and pipe spaces.

6. Exposed: Piping and equipment exposed to view in finished areas including mechanical equipment rooms or exposed to outdoor weather.

Shafts, chases, unfinished attics, crawl spaces and pipe basements are not considered finished areas.

7. FSK: Foil-scrim-Kraft facing.

8. Hot: Plumbing equipment or piping handling media above 40 degrees C

(104 degrees F).

9. Density: kg/m3 - kilograms per cubic meter (Pcf - pounds per cubic foot).

10. Thermal conductance: Heat flow rate through materials.

a. Flat surface: Watts per square meter (BTU per hour per square foot).

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b. Pipe or Cylinder: Watts per linear meter (BTU per hour per linear foot) for a given outside diameter.

11. Thermal Conductivity (k): Watts per meter, per degree K (BTU - inch thickness, per hour, per square foot, per degree F temperature difference).

12. Vapor Retarder (Vapor Barrier): A material which retards the transmission (migration) of water vapor. Performance of the vapor retarder is rated in terms of permeance (perms). For the purpose of this specification, vapor retarders/vapor barriers shall have a maximum published permeance of .02 perms.

13. HWR: Hot water recirculating.

14. CW: Cold water.

15. SW: Soft water.

16. HW: Hot water.

17. PVDC: Polyvinylidene chloride vapor retarder jacketing, white.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 07 84 00, FIRESTOPPING: Mineral fiber and bond breaker behind sealant.

D. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING: General mechanical requirements and items, which are common to more than one section of

Division 22.

F. Section 22 05 23, GENERAL-DUTY VALVES FOR PLUMBING PIPING: Hot and cold water piping.

G. Section 23 21 13, HYDRONIC PIPING: electrical heat tracing systems.

1.3 APPLICABLE PUBLICATIONS

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

B. American Society for Testing and Materials (ASTM):

B209-2014 ..............Standard Specification for Aluminum and

Aluminum-Alloy Sheet and Plate

C411-2011 ..............Standard Test Method for Hot-Surface

Performance of High-Temperature Thermal

Insulation

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C449-2007 (R2013) ......Standard Specification for Mineral Fiber

Hydraulic-Setting Thermal Insulating and

Finishing Cement

C450-2008 (R2014) ......Standard Practice for Fabrication of Thermal

Insulating Fitting Covers for NPS Piping, and

Vessel Lagging

Adjunct to C450 ........Compilation of Tables that Provide Recommended

Dimensions for Prefab and Field Thermal

Insulating Covers, etc.

C533-2013 ..............Standard Specification for Calcium Silicate

Block and Pipe Thermal Insulation

C534/C534M-2014 ........Standard Specification for Preformed Flexible

Elastomeric Cellular Thermal Insulation in

Sheet and Tubular Form

C547-2015 ..............Standard Specification for Mineral Fiber Pipe

Insulation

C552-2014 ..............Standard Specification for Cellular Glass

Thermal Insulation

C553-2013 ..............Standard Specification for Mineral Fiber

Blanket Thermal Insulation for Commercial and

Industrial Applications

C591-2013 ..............Standard Specification for Unfaced Preformed

Rigid Cellular Polyisocyanurate Thermal

Insulation

C680-2014 ..............Standard Practice for Estimate of the Heat Gain or Loss and the Surface Temperatures of

Insulated Flat, Cylindrical, and Spherical

Systems by Use of Computer Programs

C612-2014 ..............Standard Specification for Mineral Fiber Block and Board Thermal Insulation

C1126-2014 .............Standard Specification for Faced or Unfaced

Rigid Cellular Phenolic Thermal Insulation

C1136-2012 .............Standard Specification for Flexible, Low

Permeance Vapor Retarders for Thermal

Insulation

C1710-2011 .............Standard Guide for Installation of Flexible

Closed Cell Preformed Insulation in Tube and

Sheet Form

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D1668/D1668M-1997a (2014)e1 Standard Specification for Glass Fabrics

(Woven and Treated) for Roofing and

Waterproofing

E84-2015a ..............Standard Test Method for Surface Burning

Characteristics of Building Materials

E2231-2015 .............Standard Practice for Specimen Preparation and

Mounting of Pipe and Duct Insulation to Assess

Surface Burning Characteristics

C. Federal Specifications (Fed. Spec.):

L-P-535E-1979 ..........Plastic Sheet (Sheeting): Plastic Strip; Poly

(Vinyl Chloride) and Poly (Vinyl Chloride -

Vinyl Acetate), Rigid.

D. International Code Council, (ICC):

IMC-2012 ...............International Mechanical Code

E. Military Specifications (Mil. Spec.):

MIL-A-3316C (2)-1990 ...Adhesives, Fire-Resistant, Thermal Insulation

MIL-A-24179A (2)-1987 ..Adhesive, Flexible Unicellular-Plastic Thermal

Insulation

MIL-PRF-19565C (1)-1988 Coating Compounds, Thermal Insulation, Fire-and

Water-Resistant, Vapor-Barrier

MIL-C-20079H-1987 ......Cloth, Glass; Tape, Textile Glass; and Thread, Glass and Wire-Reinforced Glass

F. National Fire Protection Association (NFPA):

90A-2015 ...............Standard for the Installation of Air-

Conditioning and Ventilating Systems

G. Underwriters Laboratories, Inc (UL):

723-2008 (R2013) .......Standard for Test for Surface Burning

Characteristics of Building Materials

1887-2004 (R2013) ......Standard for Fire Test of Plastic Sprinkler

Pipe for Visible Flame and Smoke

Characteristics

H. 3E Plus® version 4.1 Insulation Thickness Computer Program: Available from NAIMA with free download; http://.www.pipeinsulation.net

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

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B. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 22 07 11, PLUMBING INSULATION”, with applicable paragraph identification.

C. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

D. Shop Drawings:

1. All information, clearly presented, shall be included to determine compliance with drawings and specifications and ASTM Designation, Federal and Military specifications.

a. Insulation materials: Specify each type used and state surface burning characteristics.

b. Insulation facings and jackets: Each type used and state surface burning characteristics.

c. Insulation accessory materials: Each type used.

d. Manufacturer's installation and fitting fabrication instructions for flexible unicellular insulation shall follow the guidelines in accordance with ASTM C1710.

e. Make reference to applicable specification paragraph numbers for coordination.

f. All insulation fittings (exception flexible unicellular insulation) shall be fabricated in accordance with ASTM C450 and the referenced Adjunct to ASTM C450.

1.5 QUALITY ASSURANCE

A. Refer to article QUALITY ASSURANCE, in Section 22 05 11, COMMON WORK

RESULTS FOR PLUMBING.

B. Criteria:

1. Comply with NFPA 90A, particularly paragraphs 4.3.3.1 through

4.3.3.6, 4.3.11.2.6, parts of which are quoted as follows:

4.3.3.1 Pipe and duct insulation and coverings, duct linings, vapor retarder facings, adhesives, fasteners, tapes, and supplementary materials added to air ducts, plenums, panels and duct silencers used in duct systems shall have, in the form in which they are used, a maximum flame spread index of 25 without evidence of continued progressive combustion and a maximum smoke developed index of 50 when tested in accordance with ASTM E84 and appropriate mounting practice, e.g. ASTM E2231.

4.3.3.3 Coverings and linings for air ducts, pipes, plenums and panels including all pipe and duct insulation materials shall not flame, glow, smolder, or smoke when tested in accordance with a

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22 07 11 - 6 similar test for pipe covering, ASTM C411, Standard Test Method for Hot-Surface Performance of High-Temperature Thermal Insulation, at the temperature to which they are exposed in service. In no case shall the test temperature be below 121 degrees C (250 degrees F).

4.3.11.2.6.3 Nonferrous fire sprinkler piping shall be listed as having a maximum peak optical density of 0.5 or less, an average optical density of 0.15 or less, and a maximum flame spread distance of 1.5 m (5 ft) or less when tested in accordance with UL 1887, Standard for Safety Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics.

4.3.11.2.6.8 Smoke detectors shall not be required to meet the provisions of Section 4.3.

2. Test methods: ASTM E84, UL 723, and ASTM E2231.

3. Specified k factors are at 24 degrees C (75 degrees F) mean temperature unless stated otherwise. Where optional thermal insulation material is used, select thickness to provide thermal conductance no greater than that for the specified material. For pipe, use insulation manufacturer's published heat flow tables. For domestic hot water supply and return, run out insulation and condensation control insulation, no thickness adjustment need be made.

4. All materials shall be compatible and suitable for service temperature, and shall not contribute to corrosion or otherwise attack surface to which applied in either the wet or dry state.

C. Every package or standard container of insulation or accessories delivered to the job site for use shall have a manufacturer's stamp or label giving the name of the manufacturer, description of the material, and the production date or code.

1.7 STORAGE AND HANDLING OF MATERIAL

A. Store materials in clean and dry environment, pipe insulation jackets shall be clean and unmarred. Place adhesives in original containers.

Maintain ambient temperatures and conditions as required by printed instructions of manufacturers of adhesives, mastics and finishing cements.

PART 2 - PRODUCTS

2.1 MINERAL FIBER OR FIBER GLASS

A. ASTM C547 (Pipe Fitting Insulation and Preformed Pipe Insulation), Class 1, k = 0.037 (0.26) at 24 degrees C (75 degrees F), for use at temperatures up to 230 degrees C (446 degrees F) with an all service

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22 07 11 - 7 vapor retarder jacket (ASJ) and with polyvinyl chloride (PVC) premolded fitting covering.

2.2 FLEXIBLE ELASTOMERIC CELLULAR THERMAL

A. ASTM C534/C534M, k = 0.039 (0.27) at 24 degrees C (75 degrees F), flame spread not over 25, smoke developed not over 50, for temperatures from minus 4 degrees C (40 degrees F) to 93 degrees C (199 degrees F). Under high humidity exposures for condensation control an external vapor retarder/barrier jacket is required. Consult ASTM C1710.

2.3 PIPE COVERING PROTECTION SADDLES

A. Cold pipe support: Premolded pipe insulation 180 degrees (half-shells) on bottom half of pipe at supports. Material shall be cellular glass or high density Polyisocyanurate insulation of the same thickness as adjacent insulation. Density of Polyisocyanurate insulation shall be a minimum of 48 kg/m3 (3.0 pcf).

Nominal Pipe Size and Accessories Material (Insert Blocks)

Nominal Pipe Size mm (inches) Insert Blocks mm (inches)

Up through 125 (5) 150 (6) long

B. Warm or hot pipe supports: Premolded pipe insulation (180 degree half-shells) on bottom half of pipe at supports. Material shall be high density Polyisocyanurate (for temperatures up to 149 degrees C (300 degrees F)), cellular glass or calcium silicate. Insulation at supports shall have same thickness as adjacent insulation. Density of

Polyisocyanurate insulation shall be a minimum of 48 kg/m3 (3.0 pcf).

2.4 FLAME AND SMOKE

A. Unless shown otherwise all assembled systems shall meet flame spread 25 and smoke developed 50 rating as developed under ASTM and UL standards and specifications. See paragraph "Quality Assurance".

PART 3 - EXECUTION

3.1 GENERAL REQUIREMENTS

A. Required pressure tests of piping joints and connections shall be completed and the work approved by the Contracting Officer’s

Representative (COR) for application of insulation. Surface shall be clean and dry with all foreign materials, such as dirt, oil, loose scale and rust removed.

B. Except for specific exceptions or as noted, insulate all specified equipment, and piping (pipe, fittings, valves, accessories). Insulate

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22 07 11 - 8 each pipe individually. Do not use scrap pieces of insulation where a full length section will fit.

C. Where removal of insulation of piping and equipment is required, such areas shall be reinsulated to comply with this specification.

D. Insulation materials shall be installed with smooth and even surfaces, with jackets and facings drawn tight and smoothly cemented down and sealed at all laps. Insulation shall be continuous through all sleeves and openings, except at fire dampers and duct heaters (NFPA 90A).

E. Vapor retarders shall be continuous and uninterrupted throughout systems with operating temperature 15 degrees C (60 degrees F) and below. Lap and seal vapor barrier over ends and exposed edges of insulation. Anchors, supports and other metal projections through insulation on cold surfaces shall be insulated and vapor sealed for a minimum length of 150 mm (6 inches).

F. Install vapor stops with operating temperature 15 degrees C (60 degrees

F) and below at all insulation terminations on either side of valves, fittings, and equipment and particularly in straight lengths every 4.6 to 6.1 meters (approx. 15 to 20 feet) of pipe insulation. The annular space between the pipe and pipe insulation of approx. 25 mm (1 inch) in length at every vapor stop shall be sealed with appropriate vapor barrier sealant.

G. Insulation on hot piping and equipment shall be terminated square at items not to be insulated, access openings and nameplates. Cover all exposed raw insulation with white sealer coating (caution about coating’s maximum temperature limit) or jacket material.

H. Protect all insulations outside of buildings with aluminum jacket using lock joint or other approved system for a continuous weather tight system. Access doors and other items requiring maintenance or access shall be removable and sealable.

I. Plumbing work not to be insulated unless otherwise noted:

1. Piping and valves of fire protection system.

2. Chromium plated brass piping.

J. Apply insulation materials subject to the manufacturer's recommended temperature limits. Apply adhesives, mastic and coatings at the manufacturer's recommended minimum wet or dry film thickness.

K. Elbows, flanges and other fittings shall be insulated with the same material as is used on the pipe straights. Use of polyurethane or

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22 07 11 - 9 polyisocyanurate spray-foam to fill a PVC elbow jacket is prohibited on cold applications.

L. Firestop Pipe insulation:

1. Provide firestopping insulation at fire and smoke barriers through penetrations. Firestopping insulation shall be UL listed as defined in Section 07 84 00, FIRESTOPPING.

2. Pipe penetrations requiring fire stop insulation including, but not limited to the following:

a. Pipe risers through floors

b. Pipe chase walls and floors

c. Smoke partitions

d. Fire partitions

e. Hourly rated walls

3.2 INSULATION INSTALLATION

A. Molded Mineral Fiber Pipe and Tubing Covering:

1. Fit insulation to pipe, aligning all longitudinal joints. Seal longitudinal joint laps and circumferential butt strips by rubbing hard with a nylon sealing tool to assure a positive seal. Staples may be used to assist in securing insulation except for cold piping.

Seal all vapor retarder penetrations on cold piping with a generous application of vapor barrier mastic. Provide cellar glass inserts and install with metal insulation shields at outside pipe supports.

Install freeze protection insulation over heating cable.

2. Contractor's options for fitting, flange and valve insulation:

a. Insulating and finishing cement for sizes less than 100 mm (4 inches) operating at surface temperature of 15 degrees C (60 degrees F) or more.

b. Factory premolded, one piece PVC covers with mineral fiber, (Form

B), inserts surface temperature of above 4 degrees C (40 degrees

F) to 121 degrees C (250 degrees F). Provide mitered preformed insulation of the same type as the installed straight pipe insulation for pipe temperatures below 4 degrees C (40 degrees

F). Secure first layer of mineral fiber insulation with twine.

Seal seam edges with vapor barrier mastic and secure with fitting tape.

c. Factory preformed, ASTM C547 or fabricated mitered sections, joined with adhesive or (hot only) wired in place. (Bio-based materials shall be utilized when possible.) For hot piping finish

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22 07 11 - 10 with a smoothing coat of finishing cement. For cold fittings, 15 degrees C (60 degrees F) or less, vapor seal with a layer of glass fitting tape imbedded between two 2 mm (1/16 inch) coats of vapor barrier mastic.

d. Fitting tape shall extend over the adjacent pipe insulation and overlap on itself at least 50 mm (2 inches).

3. Nominal thickness in millimeters and inches specified in the schedule at the end of this section.

B. Flexible Elastomeric Cellular Thermal Insulation:

1. Apply insulation and fabricate fittings in accordance with the manufacturer's installation instructions and finish with two coats of weather resistant finish as recommended by the insulation manufacturer. External vapor barrier jacketing may be required for expected or anticipated high humidity exposures. See ASTM C1710.

2. Pipe and tubing insulation:

a. Use proper size material. Do not stretch or strain insulation.

b. To avoid undue compression of insulation, use supports as recommended by the elastomeric insulation manufacturer.

Insulation shields are specified under Section 22 05 11, COMMON

WORK RESULTS FOR PLUMBING.

c. Where possible, slip insulation over the pipe or tubing prior to connection, and seal the butt joints with adhesive. Where the slip-on technique is not possible, slit the insulation and apply it to the pipe sealing the seam and joints with contact adhesive.

Optional tape sealing, as recommended by the manufacturer, may be employed. Bio-based materials shall be utilized when possible.

3. Apply sheet insulation to flat or large curved surfaces with 100 percent adhesive coverage. For fittings and large pipe, apply adhesive to seams only.

4. Pipe insulation: nominal thickness in millimeters (inches as specified in the schedule at the end of this section.

3.3 PIPE INSULATION SCHEDULE

A. Provide insulation for piping systems as scheduled below:

Insulation Thickness Millimeters (Inches)

Nominal Pipe Size Millimeters (Inches)

Operating Temperature Range/Service

Insulation Material

Less than 25 (1)

25 – 32 (1 – 1¼)

38 – 75 (1½ - 3)

100 (4) and Greater

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22 07 11 - 11

38-60 degrees C (100-140 degrees F)

(Domestic Hot Water Supply and Return)

Mineral Fiber (Above ground piping only)

38 (1.5) 38 (1.5) 50 (2.0) 50 (2.0)

38-60 degrees C (100-140 degrees F)

(Domestic Hot Water Supply and Return)

Flexible Elastomeric Cellular Thermal (Above ground piping only)

38 (1.5) 38 (1.5) 50 (2.0) 50 (2.0)

(4-15 degrees C (40-60 degrees F)

Flexible Elastomeric Cellular Thermal (Above ground piping only)

25 (1.0) 25(1.0) 25 (1.0) 25 (1.0)

- - - E N D - - -

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SECTION 22 11 00

FACILITY WATER DISTRIBUTION

PART 1 - GENERAL

1.1 DESCRIPTION

A. Domestic water systems, including piping, equipment and all necessary accessories as designated in this section.

B. A complete listing of all acronyms and abbreviations are included in

Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 07 84 00, FIRESTOPPING.

D. Section 07 92 00, JOINT SEALANTS.

E. Section 09 91 00, PAINTING.

F. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

G. Section 22 07 11, PLUMBING INSULATION.

1.3 APPLICABLE PUBLICATIONS

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

B. American Society of Mechanical Engineers (ASME):

A13.1-2007 (R2013) .....Scheme for Identification of Piping Systems

B16.3-2011 .............Malleable Iron Threaded Fittings: Classes 150 and 300

B16.9-2012 .............Factory-Made Wrought Buttwelding Fittings

B16.11-2011 ............Forged Fittings, Socket-Welding and Threaded

B16.12-2009 (R2014) ....Cast Iron Threaded Drainage Fittings

B16.15-2013 ...........Cast Copper Alloy Threaded Fittings: Classes

125 and 250

B16.18-2012 ............Cast Copper Alloy Solder Joint Pressure

Fittings

B16.22-2013 ............Wrought Copper and Copper Alloy Solder-Joint

Pressure Fittings

B16.24-2011 ............Cast Copper Alloy Pipe Flanges and Flanged

Fittings: Classes 150, 300, 600, 900, 1500, and

B16.51-2013 ............Copper and Copper Alloy Press-Connect Fittings

ASME Boiler and Pressure Vessel Code -

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BPVC Section IX-2015 ...Welding, Brazing, and Fusing Qualifications

C. American Society of Sanitary Engineers (ASSE):

1010-2004 ..............Performance Requirements for Water Hammer

Arresters

D. American Society for Testing and Materials (ASTM):

A47/A47M-1999 (R2014) ..Standard Specification for Ferritic Malleable

Iron Castings

A53/A53M-2012 ..........Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and

Seamless

A183-2014 ..............Standard Specification for Carbon Steel Track

Bolts and Nuts

A269/A269M-2014e1 ......Standard Specification for Seamless and Welded

Austenitic Stainless Steel Tubing for General

Service

A312/A312M-2015 ........Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless

Steel Pipes

A403/A403M-2014 ........Standard Specification for Wrought Austenitic

Stainless Steel Piping Fittings

A536-1984 (R2014) ......Standard Specification for Ductile Iron

Castings

A733-2013 ..............Standard Specification for Welded and Seamless

Carbon Steel and Austenitic Stainless Steel

Pipe Nipples

B32-2008 (R2014) .......Standard Specification for Solder Metal

B43-2014 ...............Standard Specification for Seamless Red Brass

Pipe, Standard Sizes

B61-2008 (R2013) .......Standard Specification for Steam or Valve

Bronze Castings

B62-2009 ...............Standard Specification for Composition Bronze or Ounce Metal Castings

B75/B75M-2011 ..........Standard Specification for Seamless Copper Tube

B88-2014 ...............Standard Specification for Seamless Copper

Water Tube

B584-2014 ..............Standard Specification for Copper Alloy Sand

Castings for General Applications

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B687-1999 (R2011) ......Standard Specification for Brass, Copper, and

Chromium-Plated Pipe Nipples

C919-2012 ..............Standard Practice for Use of Sealants in

Acoustical Applications

D1785-2012 .............Standard Specification for Poly (Vinyl

Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120

D2000-2012 .............Standard Classification System for Rubber

Products in Automotive Applications

D2564-2012 .............Standard Specification for Solvent Cements for

Poly (Vinyl Chloride) (PVC) Plastic Piping

Systems

D2657-2007 .............Standard Practice for Heat Fusion Joining of

Polyolefin Pipe and Fittings

D2855-1996 (R2010) .....Standard Practice for Making Solvent-Cemented

Joints with Poly (Vinyl Chloride) (PVC) Pipe and Fittings

D4101-2014 .............Standard Specification for Polypropylene

Injection and Extrusion Materials

E1120-2008 .............Standard Specification for Liquid Chlorine

E1229-2008 .............Standard Specification for Calcium Hypochlorite

F2389-2010 .............Standard Specification for Pressure-rated

Polypropylene (PP) Piping Systems

F2620-2013 .............Standard Practice for Heat Fusion Joining of

Polyethylene Pipe and Fittings

F2769-2014 .............Standard Specification for Polyethylene of

Raised Temperature (PE-RT) Plastic Hot and

Cold-Water Tubing and Distribution Systems

E. American Water Works Association (AWWA):

C110-2012 ..............Ductile-Iron and Gray-Iron Fittings

C151-2009 ..............Ductile Iron Pipe, Centrifugally Cast

C153-2011 ..............Ductile-Iron Compact Fittings

C203-2008 ..............Coal-Tar Protective Coatings and Linings for

Steel Water Pipelines - Enamel and Tape - Hot

Applied

C213-2007 ..............Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines

C651-2014 ..............Disinfecting Water Mains

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F. American Welding Society (AWS):

A5.8M/A5.8-2011-AMD1 ...Specification for Filler Metals for Brazing and

Braze Welding

G. International Code Council (ICC):

IPC-2012 ...............International Plumbing Code

H. Manufacturers Specification Society (MSS):

SP-58-2009 .............Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and

Installation

SP-72-2010a ............Ball Valves with Flanged or Butt-Welding Ends for General Service

SP-110-2010 ............Ball Valves Threaded, Socket-Welding, Solder

Joint, Grooved and Flared Ends

I. NSF International (NSF):

14-2015 ................Plastics Piping System Components and Related

Materials

61-2014a ...............Drinking Water System Components – Health

Effects

372-2011 ...............Drinking Water System Components – Lead Content

J. Plumbing and Drainage Institute (PDI):

PDI-WH 201-2010 ........Water Hammer Arrestors

K. Department of Veterans Affairs:

H-18-8-2013 ............Seismic Design Handbook

1.4 SUBMITTALS

A. Submittals, including number of required copies, shall be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

B. Information and material submitted under this section shall be marked

“SUBMITTED UNDER SECTION 22 11 00, FACILITY WATER DISTRIBUTIONS”, with applicable paragraph identification.

C. Manufacturer's Literature and Data including: Full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity.

1. All items listed in Part 2 - Products.

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1.5 QUALITY ASSURANCE

A. All pipe, couplings, fittings, and specialties shall bear the identification of the manufacturer and any markings required by the applicable referenced standards.

1.6 SPARE PARTS

A. For mechanical press-connect fittings, provide tools required for each pipe size used at the facility.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Material or equipment containing a weighted average of greater than

0.25 percent lead are prohibited in any potable water system intended for human consumption, and shall be certified in accordance with NSF 61 or NSF 372. Endpoint devices used to dispense water for drinking shall meet the requirements of NSF 61, Section 9.

2.2 ABOVE GROUND (INTERIOR) WATER PIPING

A. Pipe: Copper tube, ASTM B88, Type K or L, drawn.

B. Fittings for Copper Tube:

1. Wrought copper or bronze castings conforming to ASME B16.18 and

B16.22. Unions shall be bronze, MSS SP-72, MSS SP-110, solder or braze joints. Use 95/5 tin and antimony for all soldered joints.

2. Mechanical press-connect fittings for copper pipe and tube shall conform to the material and sizing requirements of ASME B16.51, NSF

61 approved, 50 mm (2 inch) size and smaller mechanical press-connect fittings, double pressed type, with EPDM (ethylene propylene diene monomer) non-toxic synthetic rubber sealing elements and un-pressed fitting identification feature.

C. Solder: ASTM B32 alloy type Sb5, HA or HB. Provide non-corrosive flux.

2.3 EXPOSED WATER PIPING

A. Finished Room: Use full iron pipe size chrome plated brass piping for exposed water piping connecting fixtures, casework, cabinets, equipment and reagent racks when not concealed by apron including those furnished by the Government or specified in other sections.

1. Pipe: ASTM B43, standard weight.

2. Fittings: ASME B16.15 cast bronze threaded fittings with chrome finish.

3. Nipples: ASTM B687, Chromium-plated.

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4. Unions: MSS SP-72, MSS SP-110, brass or bronze with chrome finish.

Unions 65 mm (2-1/2 inches) and larger shall be flange type with approved gaskets.

B. Unfinished Rooms, Mechanical Rooms and Kitchens: Chrome-plated brass piping is not required. Paint piping systems as specified in Section 09

91 00, PAINTING.

2.4 STERILIZATION CHEMICALS

A. Hypochlorite: ASTM E1120.

B. Liquid Chlorine: ASTM E1229.

2.5 WATER HAMMER ARRESTER

A. Closed copper tube chamber with permanently sealed 413 kPa (60 psig) air charge above a Double O-ring piston. Two high heat Buna-N 0-rings pressure packed and lubricated with FDA approved silicone compound. All units shall be designed in accordance with ASSE 1010. Access shall be provided where devices are concealed within partitions or above ceilings. Size and install in accordance with PDI-WH 201 requirements.

Provide water hammer arrestors at:

1. All solenoid valves.

2. All groups of two or more flush valves.

3. All quick opening or closing valves.

4. All medical washing equipment.

PART 3 - EXECUTION

3.1 INSTALLATION

A. General: Comply with the International Plumbing Code and the following:

1. Install branch piping for water from the piping system and connect to all fixtures, valves, cocks, outlets, casework, cabinets and equipment, including those furnished by the Government or specified in other sections.

2. Pipe shall be round and straight. Cutting shall be done with proper tools. Pipe, except for plastic and glass, shall be reamed to remove burrs and a clean smooth finish restored to full pipe inside diameter.

3. All pipe runs shall be laid out to avoid interference with other work/trades.

4. Install union and shut-off valve on pressure piping at connections to equipment.

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5. Pipe Hangers, Supports and Accessories:

a. All piping shall be supported per the IPC, H-18-8 Seismic Design

Handbook, MSS SP-58, and SMACNA as required.

b. Shop Painting and Plating: Hangers, supports, rods, inserts and accessories used for pipe supports shall be shop coated with zinc chromate primer paint. Electroplated copper hanger rods, hangers and accessories may be used with copper tubing.

c. Floor, Wall and Ceiling Plates, Supports, Hangers:

1) Solid or split un-plated cast iron.

2) All plates shall be provided with set screws.

3) Pipe Hangers: Height adjustable clevis type.

4) Adjustable Floor Rests and Base Flanges: Steel.

5) Concrete Inserts: "Universal" or continuous slotted type.

6) Hanger Rods: Mild, low carbon steel, fully threaded or

Threaded at each end with two removable nuts at each end for positioning rod and hanger and locking each in place.

7) Pipe Hangers and Riser Clamps: Malleable iron or carbon steel.

Pipe Hangers and riser clamps shall have a copper finish when supporting bare copper pipe or tubing.

8) Rollers: Cast iron.

9) Self-drilling type expansion shields shall be "Phillips" type, with case hardened steel expander plugs.

10) Hangers and supports utilized with insulated pipe and tubing shall have 180 degree (minimum) metal protection shield centered on and welded to the hanger and support. The shield thickness and length shall be engineered and sized for distribution of loads to preclude crushing of insulation without breaking the vapor barrier. The shield shall be sized for the insulation and have flared edges to protect vapor-retardant jacket facing. To prevent the shield from sliding out of the clevis hanger during pipe movement, center-ribbed shields shall be used.

11) Miscellaneous Materials: As specified, required, directed or as noted on the drawings for proper installation of hangers, supports and accessories. If the vertical distance exceeds 6.1 m (20 feet) for cast iron pipe additional support shall be provided in the center of that span. Provide all necessary auxiliary steel to provide that support.

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12) With the installation of each flexible expansion joint, provide piping restraints for the upstream and downstream section of the piping at the flexible expansion joint. Provide calculations supporting the restraint length design and type of selected restraints. Restraint calculations shall be based on the criteria from the manufacturer regarding their restraint design.

6. Install chrome plated cast brass escutcheon with set screw at each wall, floor and ceiling penetration in exposed finished locations and within cabinets and millwork.

7. Penetrations:

a. Firestopping: Where pipes pass through fire partitions, fire walls, smoke partitions, or floors, install a fire stop that provides an effective barrier against the spread of fire, smoke, and gases as specified in Section 07 84 00, FIRESTOPPING.

Completely fill and seal clearances between raceways and openings with the firestopping materials.

b. Waterproofing: At floor penetrations, completely seal clearances around the pipe and make watertight with sealant as specified in

Section 07 92 00, JOINT SEALANTS. Bio-based materials shall be utilized when possible.

c. Acoustical sealant: Where pipes pass through sound rated walls, seal around the pipe penetration with an acoustical sealant that is compliant with ASTM C919.

8. Mechanical press-connect fitting connections shall be made in accordance with the manufacturer’s installation instructions. The tubing shall be fully inserted into the fitting and the tubing marked at the shoulder of the fitting. The fitting alignment shall be checked against the mark on the tubing to assure the tubing is fully engaged (inserted) in the fitting. Ensure the tube is completely inserted to the fitting stop (appropriate depth) and squared with the fitting prior to applying the pressing jaws onto the fitting. The joints shall be pressed using the tool(s) approved by the manufacturer. Minimum distance between fittings shall be in accordance with the manufacturer’s requirements. When the pressing cycle is complete, visually inspect the joint to ensure the tube has remained fully inserted, as evidenced by the visible insertion mark.

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B. Domestic Water piping shall conform to the following:

1. Grade all lines to facilitate drainage. Provide drain valves at bottom of risers and all low points in system. Design domestic hot water circulating lines with no traps.

2. Connect branch lines at bottom of main serving fixtures below and pitch down so that main may be drained through fixture. Connect branch lines to top of main serving only fixtures located on floor above.

3.2 TESTS

A. General: Test system either in its entirety or in sections. Submit testing plan to COR 10 working days prior to test date.

B. Potable Water System: Test after installation of piping and domestic water heaters, but before piping is concealed, before covering is applied, and before plumbing fixtures are connected. Fill systems with water and maintain hydrostatic pressure of 1035 kPa (150 psig) gage for two hours. No decrease in pressure is allowed. Provide a pressure gage with a shutoff and bleeder valve at the highest point of the piping being tested. Pressure gauge shall have 1 psig increments.

C. All Other Piping Tests: Test new installed piping under 1-1/2 times actual operating conditions and prove tight.

D. The test pressure shall hold for the minimum time duration required by the applicable plumbing code or authority having jurisdiction.

3.3 STERILIZATION

A. After tests have been successfully completed, thoroughly flush and sterilize the interior domestic water distribution system in accordance with AWWA C651.

B. Use liquid chlorine or hypochlorite for sterilization.

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SECTION 22 13 00

FACILITY SANITARY AND VENT PIPING

PART 1 - GENERAL

1.1 DESCRIPTION

A. This section pertains to sanitary sewer and vent systems, including piping, equipment and all necessary accessories as designated in this section.

B. A complete listing of all acronyms and abbreviations are included in

Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING.

1.2 RELATED WORK

A. Section 01 00 00, GENERAL REQUIREMENTS.

B. Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

C. Section 07 84 00, FIRESTOPPING: Penetrations in rated enclosures.

D. Section 07 92 00, JOINT SEALANTS: Sealant products.

E. Section 09 91 00, PAINTING: Preparation and finish painting and identification of piping systems.

F. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING: Pipe Hangers and

Supports, Materials Identification.

G. Section 22 07 11, PLUMBING INSULATION.

1.3 APPLICABLE PUBLICATIONS

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

B. American Society of Mechanical…