VA245-17-B-0086-A00006005.pdf

VA Huntington March 15, 2017 Install Back-Up Generator 1 00% Construction Documents Huntington, WV 25704 Project No. 581-16-101

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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

1. Plumbing piping and equipment.

B. Definitions

1. ASJ: All service jacket, white finish facing or jac ket.

2. Cold: Equipment or piping handling media at design temperature of 60 degrees F (16 degrees C) or below.

3. Exposed: Piping and equipment exposed to view in fi nished areas including mechanical equipment rooms or exposed to outdoor weather.

4. Density: Pcf - pounds per cubic foot (kg/m3 - kilog rams per cubic meter).

5. Thermal conductance: Heat flow rate through materia ls.

a. Flat surface: BTU per hour per square foot (Watt pe r square meter).

b. Pipe or Cylinder: BTU per hour per linear foot (Wat t per square meter).

6. Thermal Conductivity (k): BTU per inch thickness, p er hour, per square foot, per degrees F temperature difference ( Watt per meter, per degrees C).

7. Vapor Retarder (Vapor Barrier): A material which re tards the transmission (migration) of water vapor. Performanc e of the vapor retarder is rated in terms of permeance (perms). Fo r the purpose of this specification, vapor retarders/vapor barriers shall have a maximum published permeance of .02 perms

8. CW: Cold water.

9. SD: Storm Drain.

10. PVDC: Polyvinylidene chloride vapor retarder jacket ing, 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 22 05 11, COMMON WORK RESULTS FOR PLUMBING : General mechanical requirements and items, which are common to more th an one section of

Division 22.

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

E. Section 22 05 33, HEAT TRACING FOR PLUMBING PIPING: Insulation over heating cables.

1.3 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this s pecification 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

C450-2008 (R2014).......Standard Practice for Fabri cation 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

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

Thermal Insulation

C680-2014............... Standard Practice for Esti mate of the Heat

Gain or Loss and the Surface Temperatures of

Insulated Flat, Cylindrical, and Spherical

Systems by Use of Computer Programs

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 Install ation 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 S urface Burning

Characteristics of Building Materials

E2231-2015.............. Standard Practice for Spec imen 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-2015................ International Mechanical C ode

E. Military Specifications (Mil. Spec.):

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

MIL-A-24179A (2)-1987... Adhesive, Flexible Unicell ular-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 Installat ion of Air-

Conditioning and Ventilating Systems

G. Underwriters Laboratories, Inc (UL):

723-2008 (R2013)........ Standard for Test for Surf ace Burning

Characteristics of Building Materials

1887-2004 (R2013).......Standard for Fire Test of P lastic 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.pipeinsu lation.net

1.4 SUBMITTALS

A. Submittals, including number of required copies, sh all be submitted in accordance with Section 01 33 23, SHOP DRAWINGS, PR ODUCT DATA, AND

SAMPLES.

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B. Information and material submitted under this secti on shall be marked

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

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

D. Shop Drawings:

1. All information, clearly presented, shall be includ ed to determine compliance with drawings and specifications and AST M Designation, Federal and Military specifications.

a. Insulation materials: Specify each type used and st ate 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 th e guidelines in accordance with ASTM C1710.

e. Make reference to applicable specification paragrap h numbers for coordination.

f. All insulation fittings (exception flexible unicell ular 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 0 5 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 f ollows:

4.3.3.1 Pipe and duct insulation and coverings, duc t 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 o f 25 without evidence of continued progressive combustion and a maximum smoke developed index of 50 when tested in accordance wit h 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 mater ials shall not

22 07 11 - 5 flame, glow, smolder, or smoke when tested in accor dance with a similar test for pipe covering, ASTM C411, Standard Test Method for Hot-Surface Performance of High-Temperature The rmal Insulation, at the temperature to which they are ex posed in service. In no case shall the test temperature be b elow 250 degrees F (121 degrees C) .

4.3.11.2.6.3 Nonferrous fire sprinkler piping shall be listed as having a maximum peak optical density of 0.5 or les s, an average optical density of 0.15 or less, and a maximum flam e spread distance of 5 ft (1.5 m) or less when tested in accordance with UL 1887, Standard for Safety Fire Test of Plastic Spri nkler 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, or NFPA 255.

3. Specified k factors are at 75 degrees F (24 degrees C) mean temperature unless stated otherwise. Where optional thermal insulation material is used, select thickness to pr ovide 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 insul ation and condensation control insulation, no thickness adjus tment 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 o r dry state.

C. Every package or standard container of insulation o r accessories delivered to the job site for use shall have a manu facturer's stamp or label giving the name of the manufacturer and descr iption of the material.

D. Bio-Based Materials: For products designated by the USDA’s Bio-

Preferred Program, provide products that meet or ex ceed USDA recommendations for bio-based content, so long as p roducts meet all performance requirements in this specifications sec tion. For more information regarding the product categories covere d by the Bio-

Preferred Program, visit http://www.biopreferred.gov .

1.6 AS-BUILT DOCUMENTATION

A. Submit manufacturer’s literature and data updated t o include submittal review comments and any equipment substitutions

B. Submit operation and maintenance data updated to in clude submittal review comments, substitutions and construction rev isions shall be in

22 07 11 - 6 electronic version on compact disc or DVD inserted into a three-ring binder. All aspects of system operation and mainten ance procedures, including piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and se quence of operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include tro ubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices such as damper and door closure interlocks shall be included. A List of recommended spare part s (manufacturer, model number, and quantity) shall be furnished. Inf ormation explaining any special knowledge or tools the owner will be re quired to employ shall be inserted into the As-Built documentation.

C. The installing contractor shall maintain as-built d rawings of each completed phase for verification; and, shall provid e the complete set at the time of final systems certification testing. As-built drawings are to be provided, and a copy of them in Auto-CAD version 10 provided on compact disk or DVD. Should the installing contr actor engage the testing company to provide as-built or any portion thereof, it shall not be deemed a conflict of interest or breach of t he ‘third party testing company’ requirement.

D. Certification documentation shall be provided prior to submitting the request for final inspection. The documentation sha ll include all test results, the names of individuals performing work f or the testing agency on this project, detailed procedures followe d for all tests, and certification that all results of tests were within limits specified.

1.7 STORAGE AND HANDLING OF MATERIAL

A. Store materials in clean and dry environment, pipe covering jackets shall be clean and unmarred. Place adhesives in ori ginal containers.

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

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PART 2 - PRODUCTS

2.1 FIBER GLASS

A. ASTM C547 (Pipe Fitting Insulation and Preformed Pipe Insulation), Class 1, k = 0.26 (0.037) at 75 degrees F (24 degr ees C), for use at temperatures up to 450 degrees F (230 degrees C) wi th an all service vapor retarder jacket with polyvinyl chloride premo lded fitting covering.

2.2 CELLULAR GLASS CLOSED-CELL

A. Comply with Standard ASTM C177, C518, density 7.5 p cf (120 kg/m3) nominal, k = 0.29 (0.033) at 75 degrees F (24 degre es C).

B. Pipe insulation for use at temperatures up to 400 d egrees F (200 degrees C) with all service vapor retarder jacket.

2.3 FLEXIBLE ELASTOMERIC CELLULAR THERMAL

A. ASTM C177, C518, k = 0.27 (0.039) at 75 degrees F ( 24 degrees C), flame spread not over 25, smoke developed not over 50, fo r temperatures from minus 40 degrees F (4 degrees C) to 200 degrees F ( 93 degrees C). No jacket required.

2.4 INSULATION FACINGS AND JACKETS

A. Vapor Retarder, higher strength with low water perm eance = 0.02 or less perm rating, Beach puncture 50 units for insulation facing on pipe insulation jackets. Facings and jackets shall be al l service type (ASJ) or PVDC Vapor Retarder jacketing.

B. ASJ jacket shall be white kraft bonded to 1 mil (0. 025 mm) thick aluminum foil, fiberglass reinforced, with pressure sensitive adhesive closure. Comply with ASTM C1136. Beach puncture 50 units, Suitable for painting without sizing. Jackets shall have minimum 1-1/2 inch (40 mm) lap on longitudinal joints and minimum 3 inch (75 m m) butt strip on end joints. Butt strip material shall be same as the ja cket. Lap and butt strips shall be self-sealing type with factory-appl ied pressure sensitive adhesive.

C. Vapor Retarder medium strength with low water vapor permeance of 0.02 or less perm rating), Beach puncture 25 units: Foil -Scrim-Kraft (FSK) or PVDC vapor retarder jacketing type for concealed ductwork and equipment.

D. Except for flexible elastomeric cellular thermal in sulation (not for high humidity exposures), field applied vapor barri er jackets shall be provided, in addition to the specified facings and jackets, on all

22 07 11 - 8 exterior piping exposed to outdoor air in high humi dity areas conveying fluids below ambient temperature. The vapor barrier jacket shall consist of a multi-layer laminated cladding with a maximum water vapor permeance of 0.001 perms. The minimum puncture resi stance shall be 30 inch-pounds (35 cm-kg) for interior locations and 8 0 inch-pounds (92 cm-kg) for exterior or exposed locations or where t he insulation is subject to damage.

E. Except for cellular glass thermal insulation, when all longitudinal and circumferential joints are vapor sealed with a vapo r barrier mastic or caulking, vapor barrier jackets may not be provided . For aesthetic and physical abuse applications, exterior jacketing is recommended.

Otherwise field applied vapor barrier jackets shall be provided, in addition to the applicable specified facings and ja ckets, on all exterior piping. The vapor barrier jacket shall con sist of a multi-layer laminated cladding with a maximum water vapor permeance of 0.001 perms. The minimum puncture resistance shall be 30 inch-pounds (35 cm-

kg) for interior locations and 80 inch-pounds (92 c m-kg) for exterior or exposed locations or where the insulation is sub ject to damage.

F. Pipe fitting insulation covering (jackets): Fitting covering shall be premolded to match shape of fitting and shall be po lyvinyl chloride

(PVC) conforming to Fed Spec L-P-335, composition A , Type II Grade GU, and Type III, minimum thickness 0.03 inches (0.7 mm ). Provide color matching vapor retarder pressure sensitive tape.

G. Aluminum Jacket-Piping systems: ASTM B209, 3003 all oy, H-14 temper,

0.023 inch (0.6 mm) minimum thickness with locking longitudinal joints.

Jackets for elbows, tees and other fittings shall b e factory-fabricated to match shape of fitting and of 0.024 inch (0.6 mm ) minimum thickness aluminum. Fittings shall be of same construction as straight run jackets but need not be of the same alloy. Factory- fabricated stainless steel bands shall be installed on all circumferenti al joints. Bands shall be 0.5 inches (13 mm) wide on 18 inch (450 mm ) centers. System shall be weatherproof if utilized for outside servi ce.

2.5 PIPE COVERING PROTECTION SADDLES

A. Cold pipe support: Premolded pipe insulation 180 de grees (half-shells) on bottom half of pipe at supports. Material shall be cellular glass or high density Polyisocyanurate insulation of the sam e thickness as

22 07 11 - 9 adjacent insulation. Density of Polyisocyanurate in sulation shall be a minimum of 3 pcf (48 kg/m3).

Nominal Pipe Size and Accessories Material (Insert Blocks)

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

Up through 5 (125) 6 (150) long

6 (150) 6 (150) long

8 (200), 10 (250), 12 (300) 9 (225) long

2.6 ADHESIVE, MASTIC, CEMENT

A. Mil. Spec. MIL-A-3316, Class 1: Jacket and lap adhe sive and protective finish coating for insulation.

B. Mil. Spec. MIL-A-3316, Class 2: Adhesive for laps a nd for adhering insulation to metal surfaces.

C. Mil. Spec. MIL-A-24179, Type II Class 1: Adhesive f or installing flexible unicellular insulation and for laps and ge neral use.

D. Mil. Spec. MIL-C-19565, Type I: Protective finish f or outdoor use.

E. ASTM C449: Mineral fiber hydraulic-setting thermal insulating and finishing cement.

F. Other: Insulation manufacturers' published recommen dations.

2.7 MECHANICAL FASTENERS

A. Staples: Outward clinching galvanized steel

B. Bands: 1/2 inch (13 mm) nominal width, brass, galva nized steel, aluminum or stainless steel.

2.8 REINFORCEMENT AND FINISHES

A. Glass fiber fitting tape: Mil. Spec MIL-C-20079, Type II, Class 1.

B. Tape for Flexible Elastomeric Cellular Insulation: As recommended by the insulation manufacturer.

C. Corner beads: 2 inch (50 mm) by 2 inch (50 mm), 26 gauge (0.55 mm) thick galvanized steel; or, 1 inch (25 mm) by 1 inc h (25 mm), 28 gauge

(0.47 mm) thick aluminum angle adhered to 2 inch (5 0 mm) by 2 inch (50

mm) Kraft paper.

D. PVC fitting cover: Fed. Spec L-P-535, Composition A , 11-86 Type II, Grade GU, with Form B Mineral Fiber insert, for med ia temperature 40 degrees F (4 degrees C) to 250 degrees F (121 degre es C). Below 40 degrees F (4 degrees C) and above 250 degrees F (12 1 degrees C).

Provide double layer insert. Provide color matching vapor barrier pressure sensitive tape.

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PART 3 - EXECUTION

3.1 GENERAL REQUIREMENTS

A. Required pressure tests of piping joints and connec tions shall be completed and the work approved by the Contracting Officer

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

B. Except for specific exceptions, insulate all specif ied equipment, and piping (pipe, fittings, valves, accessories). Insul ate each pipe individually. Do not use scrap pieces of insulation where a full length section shall fit.

C. Insulation materials shall be installed in a first- class manner with smooth and even surfaces, with jackets and facings drawn tight and smoothly cemented down at all laps. Insulation shal l be continuous through all sleeves and openings, except at fire da mpers and duct heaters (NFPA 90A).

D. Vapor retarders shall be continuous and uninterrupt ed throughout systems with operating temperature 60 degrees F (16 degrees C) and below. Lap and seal vapor barrier over ends and exp osed edges of insulation. Anchors, supports and other metal proje ctions through insulation on cold surfaces shall be insulated and vapor sealed for a minimum length of 6 inches (150 mm).

E. Install vapor stops with operating temperature 60 d egrees F (15 degrees

C) and below at all insulation terminations on eith er side of valves, pumps, fittings, and equipment and particularly in straight lengths every 15 to 20 feet (4.6 to 6.1 m) of pipe insulati on. The annular space between the pipe and pipe insulation of appro x. 1 inch (25 mm) in length at every vapor stop shall be sealed with app ropriate vapor barrier sealant. Bio-based materials shall be utili zed when possible.

F. Protect all insulations outside of buildings with a luminum jacket using lock joint or other approved system for a continuou s weather tight system. Access doors and other items requiring mai ntenance or access shall be removable and sealable.

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

1. Piping in contact with earth.

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H. Apply insulation materials subject to the manufactu rer's recommended temperature limits. Apply adhesives, mastic and coa tings at the manufacturer's recommended minimum coverage.

I. Elbows, flanges and other fittings shall be insulat ed with the same material as is used on the pipe straights.

Use of polyurethane spray-foam to fill a PVC elbow jacket is prohibited on cold applications.

J. Freeze protection of above grade outdoor piping (ov er heat tracing tape): 1 inch (25 mm) thick insulation. Provide met al jackets for all pipes.

K. Provide vapor barrier jackets over insulation as fo llows:

1. All piping exposed to outdoor weather.

L. Provide metal jackets over insulation as follows:

a. All plumbing piping exposed to outdoor weather.

b. A 2 inch (50 mm) overlap is required at longitudina l and circumferential joints with the overlap at the bott om.

3.2 INSULATION INSTALLATION

A. Cellular Glass Insulation:

1. Pipe and tubing, covering nominal thickness in mill imeters and inches as specified in the schedule at the end of t his section.

B. Flexible Elastomeric Cellular Thermal Insulation :

1. Apply insulation and fabricate fittings in accordan ce with the manufacturer's installation instructions and finish with two coats of weather resistant finish as recommended by the i nsulation manufacturer.

2. Pipe and tubing insulation:

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

b. To avoid undue compression of insulation, provide c ork stoppers or wood inserts at supports as recommended by the i nsulation manufacturer. Insulation shields are specified unde r Section 22

05 11, COMMON WORK RESULTS FOR PLUMBING.

c. Where possible, slip insulation over the pipe or tu bing prior to connection, and seal the butt joints with adhesive. Where the slip-on technique is not possible, slit the insulat ion and apply it to the pipe sealing the seam and joints with con tact adhesive.

Optional tape sealing, as recommended by the manufa cturer, shall

22 07 11 - 12 be employed. Make changes from mineral fiber insula tion in a straight run of pipe, not at a fitting. Seal joint with tape.

3. Pipe insulation: nominal thickness in millimeters ( inches as specified in the schedule at the end of this sectio n.

3.3 PIPE INSULATION SCHEDULE

A. Provide insulation for piping systems as scheduled below:

Operating Temperature Range/Service

Insulation Material

4 (100) and Above

-40 to 60 degrees F (-40 to 16 degrees C)

Storm Drain piping

Fiber Glass (Above ground piping only)

1 (25)

-40 to 60 degrees F (-40 to 16 degrees C)

Storm Drain piping

Cellular Glass Closed-Cell Rigid (Exterior Locations only)

1 (25)

-40 to 60 degrees F (-40 to 16 degrees C)

Storm Drain piping

Flexible Elastomeric Cellular Thermal (Above ground piping only)

1 (25)

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