220719 - plumbing piping insulation.doc
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- Construct Addition/Fire Suppression B104
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- FA6656-09-R-0005
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Specification Section 22 07 19 Plumbing Piping Insulation
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SECTION 22 07 19
PLUMBING PIPING INSULATION
PART 1 - GENERAL
1.01 Related Documents:
A.
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.
1.02
SECTION INCLUDES:
A.
Plumbing piping insulation and jackets.
1.03
RELATED SECTIONS:
A.
Section 22 01 00 - General Plumbing Requirements
B.
Section 22 10 00 - Plumbing Piping
1.04
SUBMITTALS:
A.
Product data in accordance with Section 22 01 00.
B.
Include product description, list of materials and thickness for each service, and locations.
C.
Manufacturer's installation instructions.
1.05
QUALITY ASSURANCE:
A.
Installer shall be a company specializing in insulation application with three (3) years minimum experience.
B.
Materials shall have a flame spread/smoke developed rating of 25/50 in accordance with ASTM E84, NFPA 255 and UL 723.
PART 2 - PRODUCTS
2.01
ACCEPTABLE MANUFACTURERS:
A.
Owens-Corning
B.
Innova Technologies
C.
Knauf
D.
Pittsburg-Corning
E.
Johns-Manville
2.02
INSULATION:
A.
Type A: Glass fiber noncombustible preformed pipe insulation, ASTM C547 with factory applied vapor barrier jacket.
B.
Type B: Flexible cellular foam plastic.
2.03
JACKETS:
A.
Vapor barrier jackets shall be Kraft reinforced white vapor barrier with self-sealing adhesive joints.
B.
PVC jackets shall be one piece, pre-molded type for valves and fittings.
2.04
ACCESSORIES:
A.
Insulating Cement: ASTM C195; hydraulic setting mineral wool.
B.
Finishing Cement: ASTM C449.
C.
Fibrous Glass Cloth: Untreated; 9 oz./sq. yd. weight.
D.
Adhesives: Compatible with insulation.
PART 3 - EXECUTION
3.01
PREPARATION:
A.
Install materials after piping has been tested and approved.
3.02
INSTALLATION:
A.
Install materials in accordance with manufacturer's instructions.
B.
Continue insulation with vapor barrier through penetrations.
C.
On exposed piping, locate insulation and cover seams in least visible locations.
D. On insulated piping with vapor barrier, insulate fittings, valves, unions, flanges, strainers, flexible connections, pump casings and expansion joints.
E.
On insulated piping without vapor barrier and piping conveying fluids 140 degrees F or less, do not insulate flanges and unions at equipment, but bevel and seal ends of insulation at such locations.
F.
Provide an insert, not less than 6 inches long of same thickness and contour as adjoining insulation, between support shield and piping, but under the finish jacket, on piping 2 inches diameter or larger, to prevent insulation from sagging at support points. Inserts shall be cork or other heavy density insulating material suitable for the planned temperature range. Factory fabricated inserts may be used.
G.
Neatly finish insulation at supports, protrusions, and interruptions.
H.
Jackets:
1.
Insulated pipes conveying fluids above ambient temperature shall have standard jackets, with or without vapor barrier factory-applied. Insulate fittings, joints, and valve with insulation of like material and thickness as adjoining pipe, and finish with molded PVC covers.
2.
Insulated pipes conveying fluids below ambient temperature shall have vapor barrier jackets factory-applied. Insulate fittings, joints, and valves with molded insulation of like material and thickness as adjacent pipe, and finish with glass cloth, vapor barrier adhesive, and molded PVC covers.
3.03
PIPING INSULATION SCHEDULE – MINIMUM INSULATION THICKNESS
A.
DOMESTIC HOT WATER SYSTEMS*
Type “A” or “B”
PIPE SIZE
THICKNESS
105 and up (K value .24-.28 @ 100)
Runouts 2”
0.5”
1 and less
1.0”
1-1/4 to 2
2-1/2 to 4
1.5”
B.
DOMESTIC COLD WATER SYSTEMS
Type “A” or “B”
40 – 55 (K value .23-.27 @ 75)
Runouts 2”
1 and less
1-1/2 to 2
0.75”
2-1/2 to 4
*Applies to recirculating sections of domestic hot water systems and first 8 feet from storage tank for non-recirculating systems.
END OF SECTION
22 07 19-2
PLUMBING PIPING INSULATION
12910-330
Revised 3/2/09
12910-330
PLUMBING PIPING INSULATION
22 07 19-1
Revised 3/2/09
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