Process and Utility iNSULATION
SPECIFICATION 15270
Table Of Contents
1.GENERAL......
1.1.Work Included......
1.2.Related Work
1.3.System Description and Nomenclature
1.4.References
1.5.Quality Assurance
1.6.Submittals
1.7.Delivery, Storage and Handling
1.8.Project/Site Conditions
1.9.Sequencing/Scheduling
1.10.Alternates
1.11.Warranty
2.PRODUCTS......
2.1.Materials......
3.EXECUTION......
3.1.General
3.2.Piping Insulation
3.3.Pipe Jacketing
3.4.Equipment Insulation
3.5.Equipment Jacketing
3.6.Duct Insulation
4.INSULATION SPECIFICATIONS AND TABLES......
4.1.Insulation Specification Class D3......
4.2.Insulation Specification Class D4......
4.3.Insulation Specification Class D5......
4.4.Insulation Specification Class D6......
4.5.Insulation Specification Class P1......
4.6.Insulation Specification Class P3......
4.7.Insulation Specification Class P4......
4.8.Insulation Specification Class P5......
4.9.Insulation Specification Class P6......
4.10.Insulation Specification Class P7......
4.11.Insulation Specification Class P8......
4.12.Table 15270-1 Pipe Insulation by Service......
4.13.Insulation Specification Class E1......
4.14.Insulation Specification Class E3......
4.15.Insulation Specification Class E4......
4.16.Insulation Specification Class E5......
4.17.Table 15270-2 Equipment to be Insulated......
Latest Revision 04/13/10- 1 -Process and Utility Insulation
The Hershey CompanySpecification 15270
General
1.GENERAL
1.1.Work Included
A.All work under this Specification shall be in accordance with the Contract documents.
B.This Specification governs the minimum requirements for the procurement, fabrication and installation of all insulation. This includes all labor, supervision, tools, equipment and materials necessary for a complete and permanent installation. Work to be performed by the Contractor shall include but not necessarily be limited to the following:
1.Insulation of pipe for process and utility services.
2.Insulation of equipment for process and utility services.
3.Insulation of ductwork for process and utility services.
C.The intent of this Specification is to provide a continuous unbroken insulation system wherever possible. The Contractor shall insulate piping furnished with the equipment with the same insulation and finish as specified for the connecting piping.
D.The insulation Contractor shall be responsible for the proper joining of the insulation to the pre-insulated pipe hangers and supports as installed by Specification 15145 (Hangers and Supports) Contractor.
1.2.Related Work
A.This Specification describes in detail work which is referenced in the following primary specifications:
Spec. No. / TitleSpecification 15070 / Process and Utility Piping
Specification 15090 / Process and Utility Sheet Metal
Specification 15130 / Process and Utility Instrumentation
Specification 15301 / Fire Protection Systems
Specification 15940 / Process and Utility Equipment
Specification 16010 / Electrical Work General
B.Referenced within this Specification is related work which shall be performed by this Contractor and is described in detail in the following specifications:
Spec. No. / TitleSpecification 07900 / Joint Sealants
Specification 15145 / Hangers & Supports
Specification 15200 / Penetration of Building Elements
1.3.System Description and Nomenclature
A.This Specification along with the Contract Drawings defines the design criteria, minimum quality, labor and supervision, tools and equipment, methods and procedures, materials and assemblies for furnishing, fabricating, assembling and installing complete, permanent, industrial insulation systems.
B.Only a signed change order or addendum shall authorize modifications, alterations, exceptions or additions to this Specification.
C.This Specification and the contract drawings are complementary in that any requirement defined by one shall be the same as if explicitly defined by all. If system requirements defined by this Specification and the contract drawings are in conflict, the Contractor shall immediately notify Hershey for written clarification prior to proceeding with any related work.
D.If the Contractor has any questions regarding the system requirements after reviewing these specifications and the contract drawings, the Contractor shall immediately contact Hershey and request clarification before proceeding with any related work.
E.Insulation terms used within this Specification shall be as defined by ASTM C168. The use of the word "pipe" shall be understood to include both pipe and tubing. The use of the word "fitting" shall be understood to include all fittings (elbows, tees, crosses, unions, flanges, caps, reducers, special fittings, etc.); valves (hand valves, check valves, control valves, and special purpose valves); and specialties (strainers, pipeline filters, etc.).
F.Installation shall be interpreted to mean purchasing, receiving, transporting, unloading, storing, fabricating, applying, inspecting, and proving complete insulation systems in accordance with these technical specifications.
G.Insulation specifications are divided into three main classifications: Class P (Piping Insulation), Class E (Equipment Insulation), and Class D (Ducting Insulation). Individual material specifications for each class are located at the end of this Specification.
H.Table 15270-1 (page 31) lists the piping and ducting to be insulated and gives the individual piping or ducting designation, followed by the description, the insulation class, and the insulation thickness.
I.Table 15270-2 (page 42) lists the equipment to be insulated and gives the individual equipment numbers followed by the description, the insulation class, and the insulation thickness.
1.4.References
A.Specific editions of standards incorporated in this Specification by reference are shown in the following lists. Any materials furnished by or work performed by the Contractor shall meet these standards. It is the Contractor’s responsibility to make sure the latest version of the particular spec is being used.
B.The following is a list of American Society for Testing and Materials (ASTM) standards referenced within this Specification:
ASTM Std. No. / TitleC168 / Standard Terminology Relating to Thermal Insulation
C449 / Standard Specification for Mineral Fiber Hydraulic-Setting Thermal Insulating and Finishing Cement
C450 / Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping and Vessel Lagging
C461 / Standard Test Methods for Mastics and Coatings Used with Thermal Insulation
C533 / Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation
C534/534M / Standard Specification for Preformed Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form
C547 / Standard Specification for Mineral Fiber Pipe Insulation
C585 / Standard Practice for Inner and Outer Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing
C591 / Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation
C692 / Standard Test Method for Evaluating the Influence of Thermal Insulations on External Stress Corrosion Cracking Tendency of Austenitic Stainless Steel
C755 / Standard Practice for Selection of Vapor Retarders for Thermal Insulation
C795 / Standard Specification for Thermal Insulation for Use In Contact with Austenitic Stainless Steel
D579 / Standard Specification for Greige Woven Glass Fabrics
E84 / Standard Test Method for Surface Burning Characteristics of Building Materials
C.The following is a list of Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) standards referenced within this Specification:
MSS Std. No. / TitleSP-58 / Pipe Hangers and Supports - Materials, Design, Manufacture, Selection, Application, and Installation
SP-69 / Pipe Hangers and Supports - Selection and Application (ANSI-approved American National Standard)
SP-89 / Pipe Hangers and Supports -Fabrication and Installation Practices
D.American Society for Heating, Refrigeration and Air Conditioning Engineers, Inc. (ASHRAE)
E.National Fire Protection Association (NFPA)
F.Occupational Safety and Health Administration (OSHA)
G.Underwriters' Laboratories Inc. (UL)
H.American National Standards Institute (ANSI)
ANSI Std. No. / TitleA13.1 / Scheme for the Identification of Piping System
1.5.Quality Assurance
A.Skilled craftsmen regularly engaged in the appropriate trade shall do all work.
B.All materials furnished by the Contractor shall be new and free from defects. No materials, whether furnished by the Contractor or others, shall be installed or used in a fabrication assembly if the materials are physically damaged or functionally defective.
C.All work performed by the Contractor shall be of good quality and done in a safe manner. The Contractor shall not perform any work during periods in which environmental or site conditions may adversely affect the serviceability of the installation. The Contractor shall not damage an existing installation or work being performed by others. The Contractor shall repair any damage at his own expense and at the direction and approval of Hershey. If conflicts arise, the Contractor shall immediately report them to Hershey for resolution. Any work performed by or materials installed by the Contractor which are found to be unsatisfactory shall be corrected by the Contractor at his expense.
1.6.Submittals
A.All submittals shall be in accordance with the requirements outlined by Hershey.
B.If the materials and methods of installation to be used are in compliance with the Specification, submission of samples or data to confirm compliance is not required. If the Contractor proposes materials or methods not exactly as specified, but intended to be of equal or better quality and performance, then catalog data sheets, samples and other supporting information shall be submitted for Hershey's review in accordance with the Data Submittal Requirements.
1.7.Delivery, Storage and Handling
A.Deliver insulation material to project site in original unbroken factory packaging labeled with manufacturer's product designation and thickness. Shipment of materials from the manufacturer to the installation location shall be in weather-tight packaging.
B.All accessories and materials (i.e. coatings, adhesives, sealers, etc.) are to be shipped to the job site in marked, unopened containers as received from the manufacturer.
C.Before accepting any materials onto the job site, the Contractor and Hershey shall inspect the materials. Any materials found to be damaged, defective or unsuitable for the intended service shall not be accepted.
D.The Contractor is responsible for proper material storage at the work site. Insulation shall be protected from moisture and weather during storage and installation. All insulation shall be stored indoors protected from rain, wind and excessive heat or cold. Insulation that has become wet shall not be used unless thoroughly dried. It shall not be used at all if dirt has entered the insulation.
E.All handling of materials shall be done in accordance with the manufacturer's recommendation and in a manner that will not damage or reduce the serviceability of the material. All materials shall be stored with the manufacturer's identification attached.
1.8.Project/Site Conditions
A.The Contractor shall ensure that temperature and other environmental conditions are favorable for insulation installation.
1.9.Sequencing/Scheduling
A.All sequencing and scheduling of work to be performed under this Specification shall be in accordance with the Agreement for Contractor Services, including all exhibits and attachments to the agreement.
1.10.Alternates
A.The Contractor may suggest alternates covering each of the following subjects:
1.Alternative materials to improve quality, schedule or pricing.
2.Exceptions to the specifications covering materials, manner of application, or other details.
B.If the Contractor has suggested changes or modifications to the system requirements, the Contractor shall submit, in writing, a description of the proposed changes or modifications for review by Hershey in accordance with Hershey submittal requirements.
C.The information shall include catalog data sheets as a minimum, and shop drawings, samples and other supportive information as necessary for Hershey to evaluate the proposed materials.
D.Hershey shall review alternative material recommendations and shall be the sole judge in determining whether the proposed material, accessory, or item meets the stated criteria for service and conditions imposed.
E.The Contractor shall not proceed with any proposed changes or modifications until authorized to do so by Hershey in writing in accordance with the contract documents. The cost of any work performed on proposed changes or modifications without Hershey's written approval will be at the Contractor's expense, as well as any cost for correcting such unauthorized work.
1.11.Warranty
A.Warranty of work to be performed under this Specification shall be in accordance with the agreement negotiated by Hershey for Contractor Services, including all exhibits and attachments to the agreement.
Latest Revision 04/13/10- 1 -Process and Utility Insulation
The Hershey CompanySpecification 15270
Products
2.PRODUCTS
2.1.Materials
A.Materials shall conform to the standards specified, shall be new, free from defects and imperfections, and shall be of recent manufacture. Materials not covered by detailed specifications shall be standard products of reputable manufacturers and suitable for intended use. Materials shall be standard catalogued products, commercially available.
B.Hershey reserves the right to reject any material if it has not been demonstrated to its satisfaction that the requirements of this Specification have been met.
C.No asbestos is permitted in any material.
D.Materials include insulation materials, accessories (bands, mesh, wire, clips, pins, tape, anchors, corner angles and similar recommended accessories) and compounds (cements, adhesives, coatings, sealers, protective finishes and similar items recommended for the applications indicated).
E.Any insulation in contact with stainless steel shall be chloride-free or have adequate inhibitors so it will not cause stress-corrosion cracking of stainless steel. All materials that will be used on stainless steel shall be certified to conform to the requirements of ASTM Specifications C692 and C795.
F.Table 15270-1 (page 31) lists in alphabetical order each piping and ducting service symbol, service description, line size, insulation class and thickness. Individual insulation specifications follow the tables. These specifications provide detailed information on each type of insulation. The table lists insulation for "Interior" and "Exterior;" "Exterior" shall include unheated enclosed areas, such as enclosed catwalks, covered pipe bridges, etc.
G.Table 15270-2 (page 42) lists in numerical order each item of insulated equipment, the insulation class, and the insulation thickness. Individual equipment insulation specifications follow Table 15270-2. The specifications provide detailed information on each type of insulation.
Latest Revision 04/13/10- 1 -Process and Utility Insulation
The Hershey CompanySpecification 15270
Execution
3.EXECUTION
3.1.General
A.It is the Contractor's responsibility to inspect the work site prior to execution to verify that surfaces to receive insulation have no defects or errors that would result in poor or potentially defective application or cause latent defects in workmanship.
B.The Contractor shall not apply insulation until Hershey has approved the required hydrostatic or pneumatic testing of the piping system or individual piece of equipment. Where approved by Hershey, the installation of insulation may be applied before pressure testing provided joints are not covered until inspected under pressure tests. The Contractor shall coordinate his work with Specification 15070, Process and Utility Piping.
C.Heat traced piping shall not be insulated until after the heat tracing has been installed. The Contractor shall coordinate his work with Specification 15070, Process and Utility Piping, for steam/fluid tracing and Specification 16010, Electrical Work General for electrical tracing. Tracer expansion loops, jumpers, etc., that protrude beyond the pipe insulation shall be insulated the same as on piping.
D.Skilled craftsmen regularly engaged in the appropriate trade shall perform all work. Application method and recommended coverage of all materials shall be in strict accordance with the manufacturer's written recommendations.
E.Insulation shall not be applied until all surfaces are clean, dry, and free of dirt, dust, grease, frost, moisture and other imperfections. The cleaning of these surfaces prior to insulating is the Contractor's responsibility.
F.The Contractor shall be responsible for the protection of "in-work" insulation from the weather, and shall replace any weather-damaged insulation at no additional cost to Hershey.
G.The Contractor shall provide insulation of the specified thickness. Where there is insufficient clearance to install the specified thickness of insulation, the Contractor shall notify Hershey in writing. Hershey will advise in writing if a non-specified insulation thickness is acceptable, or if pipe is to be modified to allow specified insulation thickness.
H.All hot work, i.e., welding, torches, and open flame work, must have been completed prior to commencing the installation of foam insulation. Smoking in the area while foam insulation is being applied shall be strictly prohibited. Smoking is prohibited in the plant except as designated.
I.All pipe and duct insulation shall be continuous through all sleeves. Insulation shall be jacketed where subject to mechanical damage.
J.Insulation adjacent to pipe flanges shall be cut and tapered in such a manner as to allow bolt removal without damaging insulation.
K.Any location where water may pocket or puddle on the insulation shall be built-up and beveled with a sufficient taper to eliminate any pocketing or puddling of water.
L.On insulated, heat-traced lines, all in-line instruments, vents, drains, control valves, block valves, and flexible hoses shall be insulated the same as the pipe.
M.Nameplates, insurance company's inspection stamps, or identification tags shall not be covered with insulation except where accumulation of water might get beneath insulation. Locations of nameplates, stamps, or tags covered by insulation shall be recorded on dimensioned drawings and a location list, both to be turned over to Hershey at the completion of the insulation work.
N.The Contractor shall be responsible for cleaning the job-site during the job and at the completion of the job. Insulation work that is being done while plant is operating shall be cleaned at a minimum of once a Contractor shift. The Contractor shall be responsible for cleaning of equipment, steel, and any other surfaces that are soiled due to spattering, dripping, or dusting of insulation or coating.
3.2.Piping Insulation
A.Installation Details - Class P1
1.Pipe - Pipe shall be insulated with pre-molded sections of calcium silicate. For insulation thickness 3 inch and greater, the insulation shall be applied in double-layer construction with staggered and broken joints. Where necessary, the Contractor shall furnish suitable expansion joints in the insulation to prevent cracking or wrinkling due to expansion and contraction of the surface being insulated. Expansion joint details shall be per insulation manufacturer's recommendations.
2.Materials:
a.Insulating tape shall be 1/8 inch thick, woven glass tape.
b.Weatherproofing mastic shall be a breathing type.
c.Insulation straps shall be 1/2 inch wide by 0.015 inch thick galvanized steel straps and seals.
d.Insulation wire shall be 16 gauge carbon steel wire.
3.Fittings 2 inches and Smaller - Screwed, welded, and soldered joint fittings shall be insulated to the same thickness as the adjoining pipe insulation with insulating cement applied in 1/2 inch to 3/4 inch thick layers. Each layer shall be dry prior to applying the next layer. If the thickness exceeds 1-1/2 inches, the outer layer shall be reinforced with wire mesh such that the mesh shall be completely embedded into the final coat and shall not be visible.
4.Fittings 2-1/2 inches and Larger - Pipe fittings 2-1/2 inches and larger, and flanged fittings of all sizes shall be insulated with either pre-molded sections or shop-fabricated sections of calcium silicate contoured to fit the fittings to be insulated and secured by galvanized strap or stainless steel wire ties. All joints and other irregularities shall be filled and smoothed over with insulating cement.
5.Flanges - Insulate flanges with oversize pre-molded sections of pipe insulation large enough to fit over the OD of the flange. Cut and bevel the pipe insulation short of the flange to allow removal of the flange bolts without disturbing the insulation. Oversize insulation shall lap the pipe insulation by 1-1/2 times the insulation thickness. Fill space between pipe insulation and oversize insulation with pre-molded pipe insulation or block insulation of the same material.
6.Hangers - Horizontal pipe shall be protected at the point of support by a high-density calcium silicate insert encased in a sheet metal shield. Inserts shall be the same thickness as the pipe insulation. Inserts shall be Pipe Shields, Inc., or Hershey-approved equivalent. Hangers shall be installed by Specification 15145 (Hangers and Supports) Contractor. The insulation Contractor shall be responsible for the joining of the insulation to the pre-insulated pipe hanger or support per the manufacturer's written instructions. For calcium silicate inserts, apply three-inch wide vapor barrier tape or galvanized strap over the butt joint.
7.Valves - Insulation shall be the same as the fitting insulation. Valve bodies shall be insulated up to the packing gland. Insulation shall be cut and beveled so as not to interfere with adjustment or removal of the packing gland. Insulation shall be sealed to the valve body with heat resistant sealer.
8.Jacketing - Install jacketing material over pipe and fittings after all insulation has been applied in strict accordance with the jacketing manufacturer's written instructions.
9.All stainless steel piping systems with P1 insulation shall receive "Thurmalox 70" coating, or Hershey approval equal, prior to insulating. Prepare the surfaces and apply coating in strict accordance with the manufacturer's written instructions. The coating shall be applied to all exterior surfaces of the piping system. The metal surfaces shall be clean and dry and shall be cleaned with a non-chlorinated, non-aliphatic solvent. Apply two coats of "Thurmalox 70", or Hershey-approved equal, to give a total dry film thickness of 2.0 to 2.5 mils. Both coats shall be applied to the pipe. All openings in pipe shall be covered and proper precautions shall be taken to prevent overspray or spillage from contaminating the interior of the pipe.
B.Installation Details - Class P3