Division 15 – Mechanical Section 15010 – Basic Mechanical Requirements

FSWA 15010-1

Public Water System Upgrades

DIVISION 15 - MECHANICAL

SECTION 15010 – BASIC MECHANICAL REQUIREMENTS

PART 1 – GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and

Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

B. Wiring and control and power devices supplied by this Contract are included in

Division 16 Specification Sections.

1.2 SECTION INCLUDES

A. Basic Mechanical Requirements specifically applicable to Division 15 Sections.

This Section also contains coordination information between various contracts.

Review the coordination information in this Section and applicable Division 1 Sections.

1.3 QUALITY ASSURANCE

A. Monitor quality control over suppliers, manufacturers, products, services, site conditions and workmanship to produce work of specified quality.

B. Comply fully with manufacturers’ instructions, including each step in sequence.

C. Request clarification from the Engineer when manufacturers’ instructions conflict with Contract Documents.

D. Comply with specified standards as a minimum of quality for the Work except when more stringent tolerances, codes, or specified requirements indicate higher standards or more precise workmanship.

E. Perform work by persons qualified to produce workmanship of specified quality.

F. Secure products in place with positive anchorage devices designed and sized to withstand stresses, vibration, physical distortion or disfigurement.

1.4 SUBMITTALS

A. The following shall apply to all shop drawings and product data submitted for mechanical equipment specified in Division 15.

1. Submit shop drawings and product data under provisions of Section

01300.

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2. Submit shop drawings and product data grouped to include complete submittals of related systems, products and accessories in a single submittal.

3. Mark dimensions and values in units to match those specified.

1.5 REGULATORY REQUIREMENTS

A. Conform to applicable Building, Mechanical, and Plumbing Codes.

B. In the event that Contract Documents conflict with any applicable codes, notify the Engineer before proceeding.

C. Obtain permits, and request inspections from the authority having jurisdiction.

1.6 CONTRACTOR COORDINATION WITH OTHER TRADES

A. The HVAC Drawings are generally diagrammatic and indicative of the work and indicate the intent of the design.

1. The Drawings shall not be used for final dimensioning unless noted on the drawings.

2. The General Contractor shall be responsible for coordinating with others to verify equipment size, locations, associated equipment and hardware.

3. The General Contractor shall be responsible for modifying the work with offsets, bends or other fittings to avoid minor interferences with electrical equipment and devices and structural obstructions.

4. Perform above at no increase in Contract Price.

B. The General Contractor shall keep all hot water heating piping conveying fluids at elevated temperatures at least six inches away from parallel runs of electrical raceways. Piping shall be installed below horizontal raceways.

C. Electrical Contractor shall provide disconnect switches for all equipment furnished under this section. Refer to Division 16 sections for product specification of disconnects. Electrical power connections to starters and disconnects and from starters and disconnects to equipment shall be made by the Electrical Contractor.

D. Controls and Control Wiring:

1. The Electrical Contractor shall provide all control wiring regardless of voltage, conduits, and materials required for control system specified hereinafter or as necessary for proper operation. Refer to Division 16 specification sections for product specifications.

2. Wiring for power to HVAC Equipment shall be provided by the Electrical Contractor.

a) Power wiring shall include all wiring required to provide power to equipment independent of system voltage or panel source.

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b) The Electrical Contractor shall be responsible for power interface wiring for HVAC Equipment derived from panelboards, motor control centers or HVAC control panels as identified on the Drawings.

E. The exact location of equipment, piping, ductwork, ceiling registers, diffusers and grilles shall be coordinated with all other trades prior to installation. These items shall be relocated if required (with Engineer’s approval) at no additional cost to the Owner.

F. The General Contractor shall coordinate the installation of roof-mounted equipment and the location of all other roof penetrations. The General Contractor shall supply all roof curbs for all roof-mounted mechanical equipment. The General Contractor shall set the curb and provide flashing to the curb. The General Contractor is responsible to provide counter flashing and sealant between the curb and the equipment. The General Contractor shall be responsible for any additional costs as a result of not coordinating roof curb locations prior to completion of roof installation.

G. The General Contractor shall coordinate the location of all penetrations. The

General Contractor shall be made aware of the openings prior to installation of the walls whenever possible.

H. The General Contractor shall be responsible for heating hot water piping additions and revisions and for condensate piping.

1.7 TRANSPORTATION AND HANDLING

A. Transport and handle products in accordance with manufacturer’s instructions.

B. Promptly inspect shipments to assure that products comply with requirements, that quantities are correct and that products are undamaged.

C. Provide methods to personnel handling products for prevention of soiling, disfiguring or damaging products.

1.8 STORAGE AND PROTECTION

A. Store and protect products in accordance with manufacturer’s instructions, with seals and labels intact and legible.

B. Store sensitive products in weather-tight, climate controlled enclosures.

C. For exterior storage of fabricated products, place above ground on sloped supports.

D. Cover products subject to deterioration with impervious sheet covering. Provide ventilation to avoid condensation.

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E. Arrange storage of products to permit access for inspection. Periodically inspect to assure products are undamaged and are maintained under specified conditions.

1.9 BASIS OF DESIGN

A. In order to show design criteria and equipment layouts, one of the acceptable manufacturers was chosen to be shown on the Drawings. The basis of design is listed in the specifications with a model number assigned. Where no model number is listed, or more than one manufacturer is listed with a model number, the basis of design is the first listed acceptable manufacturer.

PART 2 - PRODUCTS

NOT USED

PART 3 - EXECUTION

3.1 FINAL CLEANING

A. Execute final cleaning prior to final inspection.

B. Clean equipment and fixtures to a sanitary condition.

C. Replace filters of operating equipment.

D. Clean debris from drainage systems.

E. Remove waste and surplus materials from the site and dispose of in an appropriate manner.

END OF SECTION 15010

Section 15010 – Basic Mechanical Materials and Methods

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SECTION 15050 – BASIC MECHANICAL MATERIALS AND METHODS

A. Piping materials and installation instructions common to most piping systems.

B. Flexible connectors.

C. Mechanical sleeve seals.

D. Equipment nameplate data requirements.

E. Non-shrink grout for equipment installations.

F. Installation requirements common to equipment specification sections.

G. Touchup painting and finishing.

H. Concrete bases.

I. Supports and anchorages.

1.3 DEFINITIONS

A. Finished Spaces: Spaces other than mechanical and electrical equipment rooms, furred spaces, pipe and duct shafts, unheated spaces immediately below roof, spaces above ceilings, unexcavated areas, crawl spaces and tunnels.

B. Exposed, Interior Installations: Exposed to view indoors. Examples include finished occupied spaces and mechanical equipment rooms.

C. Exposed, Exterior Installations: Exposed to view outdoors or subject to outdoor ambient temperatures and weather conditions. Examples include rooftop locations.

D. Concealed, Interior Installations: Concealed from view and protected from physical contact by building occupants. Examples include above ceilings and in duct shafts.

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E. Concealed, Exterior Installations: Concealed from view and protected from weather conditions and physical contact by building occupants, but subject to outdoor ambient temperatures. Examples include installations within unheated shelters.

F. The following are industry abbreviations for plastic materials:

1. ABS: Acrylonitrile-butadiene-styrene plastic.

2. CPVC: Chlorinated polyvinyl chloride plastic.

3. NP: Nylon plastic.

4. PE: Polyethylene plastic.

5. PVC: Polyvinyl chloride plastic.

6. SDR: Standard Dimension Ratio.

G. The following are industry abbreviations for rubber materials:

1. EPDM: Ethylene propylene diene terpolymer rubber.

2. NBR: Acrylonitrile-butadiene-styrene rubber.

1.4 QUALITY ASSURANCE

A. Comply with ASME A13.1 for lettering size, length of color field, colors and viewing angles of identification devices.

B. Steel Support Welding: Qualify processes and operators according to AWS

D1.1, “Structural Welding Code – Steel.”

C. Steel Pipe Welding: Qualify processes and operators according to ASME Boiler and Pressure Vessel Code: Section IX, “Welding and Brazing Qualifications.”

1. Comply with provisions in ASME B31 Series, “Code for Pressure Piping.”

2. Certify that each welder has passed AWS qualification tests for welding processes involved and that certification is current.

D. Electrical Characteristics for Mechanical Equipment: Equipment of higher electrical characteristics, physical dimensions, capacities and ratings may be furnished provided that such proposed equipment is approved in writing and connecting electrical services, circuit breakers, conduit and motors are appropriately modified. If minimum energy ratings or efficiencies of equipment are specifies, equipment must meet design requirements.

1.5 DELIVERY, STORAGE AND HANDLING

A. Deliver equipment and store in indoor space protected from direct sunlight, rain, snow and other outdoor weather.

B. Deliver pipe and tubes with factory-applied end caps. Maintain end caps through shipping, storage and handling to prevent pipe end damage and prevent entrance of dirt, debris and moisture.

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C. Protect stored pipes and tubes from moisture and dirt. Elevate above ground.

Do not exceed structural capacity of floor, if stored inside.

D. Protect flanges, fittings and piping specialties from moisture and dirt.

E. Store plastic pipes protected from direct sunlight. Support to prevent sagging and bending.

1.6 COORDINATION

A. Coordinate mechanical equipment installation with other building components.

B. Arrange for pipe spaces, chases, slots and openings in building structure during progress of construction to allow for mechanical installations.

C. Coordinate installation of required supporting devices and set sleeves in poured-in-place concrete and other structural components as they are constructed.

D. Sequence, coordinate and integrate installations of mechanical materials and equipment for efficient flow of the Work. Coordinate installation of large equipment requiring positioning before closing in building.

E. Coordinate connection of mechanical systems with exterior underground and overhead utilities and services. Comply with requirements of governing regulations, franchised service companies and controlling agencies.

2.1 MECHANICAL SLEEVE SEALS

A. Description: Modular sealing element unit, designed for field assembly, to fill annular space between pipe and sleeve.

B. Available Manufacturers:

1. Thunderline (Link-Seal).

2. Advance Products & Systems, Inc.

3. Pipeline Seal and Insulator, Inc.

C. Sealing Elements: EPDM interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe.

D. Pressure Plates: Plastic or stainless steel. Include two for each sealing element.

E. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to sealing elements. Include one for each sealing element.

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2.2 PIPE AND PIPE FITTINGS

A. Refer to individual Division 15 piping sections for pipe and fitting materials and joining methods.

B. Pipe Threads: ASME B1.20.1 for factory-threaded pipe and pipe fittings.

2.3 JOINING MATERIALS

A. Refer to individual Division 15 piping sections for special joining materials not listed below.

B. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system contents.

1. ASME B16.21, nonmetallic, flat, asbestos-free, 1/8 inch maximum thickness unless thickness or specific material is indicated.

a. Narrow-Face Type: For raised-face, Class 250, cast-iron and steel flanges.

2. AWWA C110, rubber, flat face, 1/8 inch thick, unless otherwise indicated;

and full-face or ring type, unless otherwise indicated.

C. Flange Bolts and Nuts: ASME B18.2.1, carbon steel, unless otherwise indicated.

D. Welding Filler Metals: Comply with AWS D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.

2.4 SLEEVES

A. The following materials are for wall, floor, slab and roof penetrations:

1. Steel Sheet Metal: 0.0239-inch minimum thickness, galvanized, round tube closed with welded longitudinal joint.

2. Steel Pipe: ASTM A53, Type E, Grade A, Schedule 40, galvanized, plain ends.

3. Cast Iron: Cast or fabricated “wall pipe” equivalent to ductile iron pressure pipe, with plain ends and integral waterstop, unless otherwise indicated.

4. Stack Sleeve Fittings: Manufactured, cast-iron sleeve with integral clamping flange. Include clamping ring and bolts and nuts for membrane flashing.

a. Underdeck Clamp: Clamping ring with set screws.

2.5 IDENTIFYING DEVICES AND LABELS

A. General: Manufacturer’s standard products of categories and types required for each application as referenced in other Division 15 sections. If more than one type is specified for application, selection is Installer’s option, but provide one selection for each product category.

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B. Equipment Nameplates: Metal nameplate with operational data engraved or stamped; permanently fastened to equipment.

1. Data: Manufacturer, product name, model number, serial number, capacity, operating and power characteristics, labels of tested compliances and similar essential data.

2. Location: Accessible and visible location.

C. Stencils: Standard stencils, prepared for required applications with letter sizes complying with recommendations of ASME A13.1 for piping and similar applications, but not less than 1-1/4 inch high letters for ductwork and not less than 3/4 inch high letters for access door signs and similar operational instructions.

1. Material: Fiberboard.

2. Stencil Paint: Standard exterior-type stenciling enamel; black, unless otherwise indicated; either brushing grade or pressurized spray-can form and grade.

3. Identification Paint: Standard identification enamel of colors indicated or, if not otherwise indicated for piping systems, comply with ASME A13.1 for colors.

D. Snap-on Plastic Pipe Markers: Manufacturer’s standard preprinted, semirigid, snap on, color-coded, complying with ASME A13.1.

E. Engraved Plastic-Laminate Signs: ASTM D709, Type I, cellulose, paper-base, phenolic-resin-laminate engraving stock; Grade ES-2, black surface, black phenolic core with white melamine subcore, unless otherwise indicated.

1. Fabricate in sizes required for message.

2. Engraved with engraver’s standard letter style, of sizes and with wording to match equipment identification.

3. Punch for mechanical fastening.

4. Thickness: 1/16 inch, for units up to 20 sq. in. or 8 inches long; 1/8 inch for larger units.

5. Fasteners: Self-tapping stainless steel screws or contact-type permanent adhesive.

F. Plastic Equipment Markers: Color-coded, laminated plastic. Comply with the following color code:

1. Green: Cooling equipment and components.

2. Yellow: Heating equipment and components.

3. Yellow/Green: Combination cooling and heating equipment components.

4. Blue: Equipment and components that do not meet any criteria above.

5. For hazardous equipment, use colors and designs recommended by

ASME A13.1.

6. Nomenclature: Include the following, matching terminology on schedules as closely as possible:

a. Name and plan number.

b. Equipment service.

c. Design capacity.

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d. Other design parameters such as pressure drop, entering and leaving conditions and rpm.

7. Size: Approximate 2-1/2 by 4 inches for control devices, dampers and valves; and 4-1/2 by 6 inches for equipment.

G. Lettering and Graphics: Coordinate names, abbreviations and other designations used in mechanical identification, with corresponding designations indicated. Use numbers, lettering and wording indicated for proper identification and operation/maintenance of mechanical systems and equipment.

2.6 GROUT

A. Non-shrink, Nonmetallic Grout: ASTM C1107, Grade B.

1. Characteristics: Post-hardening, volume-adjusting, dry, hydraulic-cement grout, nonstaining, noncorrosive, nongaseous and recommended for interior and exterior applications.

2. Design Mix: 5000 psig, 28 day compressive strength.

3. Packaging: Premixed and factory packaged.

3.1 PIPING SYSTEMS – COMMON REQUIREMENTS

A. General: Install piping as described below, unless piping sections specify otherwise. Individual Division 15 piping sections specify unique piping installation requirements.

B. General Locations and Arrangements: Drawing plans, schematics and diagrams indicate general location and arrangement of piping systems. Install piping as indicated, unless deviations to layout are necessary and are approved by the Engineer.

C. Install components with pressure rating equal to or greater than system operating pressure.

D. Install piping in concealed interior and exterior locations, except in equipment rooms and service areas.

E. Install piping free of sags and bends.

F. Install piping at indicated slopes.

G. Install exposed interior and exterior piping at right angles or parallel to building walls. Diagonal runs are prohibited, unless otherwise indicated.

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H. Install piping tight to slabs, beams, joists, columns, walls and other building elements. Allow sufficient space above removable ceiling panels to allow for ceiling panel removal.

I. Install piping to allow application of insulation plus 1-inch clearance around insulation.

J. Locate groups of pipes parallel to each other, spaced to permit valve servicing.

K. Install fittings for changes in direction and branch connections.

L. Install couplings according to manufacturer’s written instructions.

M. Install pipe escutcheons for pipe penetrations of concrete and masonry walls, wall board penetrations and suspended ceilings according to the following:

1. Uninsulated Piping Wall Escutcheons: Cast brass or stamped steel, with set screw.

2. Uninsulated Piping Floor Plates in Utility Areas: Cast-iron floor plates.

3. Insulated Piping: Cast brass or stamped steel; with concealed hinge, spring clips and chrome plated finish.

4. Piping in Utility Areas: Cast brass or stamped steel, with set-screw or spring clips.

N. Permanent sleeves are not required for holes formed by PE removable sleeves.

O. Install sleeves for pipes passing through concrete and masonry walls, gypsum board partitions and concrete floor and roof slabs.

1. Cut sleeves to length for mounting flush with both surfaces.

a. Exception: Extend sleeves installed in floors of mechanical equipment areas or other wet areas 2 inches above finished floor level. Extend cast-iron sleeve fittings below floor slab as required to secure clamping ring if ring is specified.

2. Build sleeves into new walls and slabs as work progresses.

3. Install sleeves large enough to provide 1/4 inch annular clear space between sleeve and pipe or pipe insulation. Use the following sleeve materials:

a. Steel Pipe Sleeves: For pipes smaller than 6 inch NPS.

4. Except for underground wall penetrations, seal annular space between sleeve and pipe or pipe insulation, using elastomeric joint sealants.

5. Use Type S, Grade NS, Class 25, Use O, neutral-curing silicone sealant, unless otherwise indicated.

P. Fire-Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings and floors at pipe penetrations. Seal pipe penetrations with firestopping materials.

Q. Piping Joint Construction: Join pipe and fittings as follows and as specifically required in individual piping specification sections:

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1. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

2. Remove scale, slag, dirt and debris from inside and outside of pipe and fittings before assembly.

3. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

a. Note internal length of threads and fittings or valve ends, and proximity of internal seat or wall, to determine how far pipe should be threaded into joint.

b. Apply appropriate tape or thread compound to external pipe threads, unless dry seal threading is specified.

c. Align threads at point of assembly.

d. Tighten joint with wrench. Apply wrench t valve end into which pipe is being threaded.

e. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged. Do not use pipe sections that have cracked or open welds.

4. Welded Joints: Construct joints according to AWS D10.12, using qualified processes and welding operators according to Part 1 “Quality Assurance” Article.

5. Flanged Joints: Select appropriate gasket material, size, type and thickness for service application. Install gasket concentrically positioned.

Use suitable lubricants on bolt threads.

R. Piping Connections: Make connections according to the following, unless otherwise indicated:

1. Install unions, in piping 2-inch NPS and smaller, adjacent to each valve and at final connection to each piece of equipment with 2-inch NPS or smaller threaded pipe connection.

2. Wet Piping Systems: Install dielectric coupling and nipple fittings to connect piping materials of dissimilar metals.

3.2 EQUIPMENT INSTALLATION – COMMON REQUIREMENTS

A. Install equipment to provide maximum possible headroom, if mounting heights are not indicated.

B. Install equipment according to approved submittal data. Portions of the Work are shown only in diagrammatic form. Refer conflicts to Engineer.

C. Install equipment level and plumb, parallel and perpendicular to other building systems and components in exposed interior spaces, unless otherwise indicated.

D. Install mechanical equipment to facilitate service, maintenance and repair or replacement of components. Connect equipment for ease of disconnecting, with minimum interference to other installations. Extend grease fittings to accessible locations.

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E. Install equipment giving right of way to piping installed at required slope.

F. Install flexible connectors on equipment side of shutoff valve, horizontally and parallel to equipment shafts if possible.

3.3 LABELING AND IDENTIFYING

A. Piping Systems: Install pipe markers on each system. Include arrows showing normal direction of flow.

1. Plastic markers, with application systems. Install on insulation segment if required for hot, uninsulated piping.

2. Locate pipe markers as follows, if piping is exposed in finished spaces, machine rooms and accessible maintenance spaces, such as shafts, tunnels, plenums and exterior non-concealed locations:

a. Near each valve and control device.

b. Near each branch, excluding short takeoffs for fixtures and terminal units. Mark each pipe at branch.

c. Near locations if pipes pass through walls, floors, ceilings or enter non-accessible enclosures.

d. At access doors, manholes and similar access points that permit view of concealed piping.

e. Near major equipment items and other points of origination and termination.

f. Spaced at maximum of 50-foot intervals along each run. Reduce intervals to 25 feet in congested areas of piping and equipment.

B. Equipment: Install engraved plastic-laminate sign or equipment marker on or near each major item of mechanical equipment.

1. Lettering Size: Minimum 1/4 inch high lettering for name of unit if viewing distance is less than 24 inches, 1/2 inch high lettering for distances up to 72 inches and proportionally larger lettering for greater distances.

Provide secondary lettering two-thirds to three-fourths of size of principal lettering.

2. Text of Signs: Provide name of identified unit. Include text to distinguish between multiple units, inform user of operational requirements, indicate safety and emergency precautions and warn of hazards and improper operations.

C. Adjusting: Relocate identifying devices as necessary for unobstructed view in finished construction.

D. All markers, labels and signs shall be secured with mechanical bands or stainless steel screws to prevent removal from item being identified.

3.4 PAINTING AND FINISHING

A. Damage and Touchup: Repair marred and damaged factory-painted finishes

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with materials and procedures to match original factory finish.

3.5 CONCRETE BASES

A. Anchor equipment to concrete bases according to equipment manufacturer’s written instructions.

B. Construct concrete bases of dimensions indicated, but not less than 4 inches larger in both directions than supported unit.

C. Install epoxy-coated anchor bolts for supported equipment that extend through concrete base, and anchor into structural concrete floor.

D. Place and secure anchoring devices. Use supported equipment manufacturer’s setting drawings, templates, diagrams, instructions and directions furnished with items to be embedded.

E. Install anchor bolts to elevations required for proper attachment to supported equipment.

F. Install anchor bolts according to anchor bolt manufacturer’s written instructions.

G. Use 4,000 psi, 28 day compressive strength concrete and reinforcement as specified in Section 03300.

3.6 GROUTING

A. Install nonmetallic, non-shrink grout for mechanical equipment base bearing surfaces, pump and other equipment base plates and anchors. Mix grout according to manufacturer’s written instructions.

B. Clean surfaces that will come into contact with grout.

C. Provide forms as required for placement of grout.

D. Avoid air entrapment during placing of grout.

E. Place grout, completely filling equipment bases.

F. Place grout on concrete bases to provide smooth bearing surface for equipment.

G. Place grout around anchors.

H. Cure placed grout according to manufacturer’s written instructions.

END OF SECTION 15050

Section 15060 – Hangers and Supports

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SECTION 15060 – HANGERS AND SUPPORTS

A. Pipe and equipment hangers, supports and associated anchors.

B. Equipment bases and supports.

C. Sleeves and seals.

D. Flashing and sealing equipment and penetrations.

1.3 DEFINITIONS

A. MSS: Manufacturers Standardization Society for the Valve and Fittings Industry.

B. Terminology: As defined in MSS SP-90, “Guidelines on Terminology for Pipe

Hangers and Supports.”

1.4 PERFORMANCE REQUIREMENTS

A. Design heavy-duty steel trapezes for piping to support multiple pipes capable of supporting combined weight of supported systems, system contents and test water.

1.5 SUBMITTALS

A. Indicate hanger and support framing and attachment methods.

B. Manufacturer’s Installation Instructions: Indicate special procedures and assembly of components.

1.6 REGULATORY REQUIREMENTS

A. Conform to local codes for support requirements for plumbing and hydronic piping.

2.1 HANGERS AND SUPPORTS

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A. Pipe Hangers, Supports and Components: MS SP-58, factory-fabricated components. Refer to “Hanger and Support Applications” Article in Part 3 and the Drawings for where to use specific hanger and support types.

1. Galvanized Metallic Coatings: For piping and equipment that will not have field-applied finish.

2. Nonmetallic Coatings: On attachments for electrolytic protection where attachments are in direct contact with copper tubing.

B. Refer to details and plan drawings for the material types to be used in each building area. On drawings where material type is not called out, galvanized supports and fasteners shall be used.

C. Specific hanger requirements are specified in Sections specifying equipment and systems. Design hangers without disengagement of supported pipe. Use hangers with 1 1/2 minimum vertical adjustment.

D. Comply with MSS SP-69 for pipe hanger selections and applications that are not specified in piping system specification sections.

E. Horizontal-Piping Hangers and Supports: Unless otherwise indicated and except as specified in piping system specification sections, install the following types:

1. Adjustable Steel Clevis Hangers (MSS Type 1): For suspension and non-insulated or insulated stationary pipes, NPS 1/2 to NPS 30.

2. Yoke-Type Pipe Clamps (MSS Type 2): For suspension of 120 to 450 °F pipes, NPS 4 to NPS 16, requiring up to 4 inches of insulation.

3. Carbon- or Alloy-Steel, Double-Bolt Pipe Clamps (MSS Type 3): For suspension or pipes, NPS 3/4 to NPS 24, requiring clamp flexibility and up to 4 inches of insulation.

4. Steel Pipe Clamps (MSS Type 4): For suspension of cold and hot pipes, NPS 1/2 to NPS 24, if little or no insulation is required.

5. Pipe Hangers (MSS Type 5): For suspension of pipes, NPS 1/2 to NPS 4, to allow off-center closure for hanger installation before pipe erection.

6. U-Bolts (MSS Type 24): For support of heavy pipe, NPS 1/2 to NPS 30.

7. Pipe Saddle Supports (MSS Type 36): For support of pipes, NPS 4 to

NPS 36, with steel pipe base stanchion support and cast-iron floor flange.

8. Pipe Stanchion Saddles (MSS Type 37): For support of pipes, NPS 4 to

NPS 36, with steel pipe base stanchion support and cast-iron floor flange and with U-bolt to retain pipe.

9. Adjustable Pipe Saddle Supports (MSS Type 38): For stanchion-type support for pipes, NPS 2-1/2 to NPS 36, if vertical adjustment is required, with steel pipe base stanchion support and cast-iron floor flange.

10. Single Pipe Rolls (MSS Type 41): For suspension of pipes, NPS 1 to NPS 30, from two rods if longitudinal movement caused by expansion and contraction might occur.

11. Adjustable Roller Hangers (MSS Type 43): For suspension of pipes, NPS 2-1/2 to NPS 20, from single rod if horizontal movement caused by expansion and contraction might occur.

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12. Complete Pipe Rolls (MSS Type 44): For support of pipes, NPS 2 to NPS 42, if longitudinal movement caused by expansion and contraction might occur but vertical adjustment is not necessary.

13. Pipe Roll and Plate Units (MSS Type 45): For support of pipes, NPS 2 to NPS 24, if small horizontal movement caused by expansion and contraction might occur and vertical adjustment is not necessary.

14. Adjustable Pipe Roll and Base Units (MSS Type 46): For support of pipes, NPS 2 to NPS 30, if vertical and lateral adjustment during installation might be required in addition to expansion and contraction.

F. Vertical-Piping Clamps: Unless otherwise indicated and except as specified in piping system specification sections, install the following types:

1. Extension Pipe or Riser Clamps (MSS Type 8): For support of pipe risers, NPS 3/4 to NPS 20.

2. Carbon- or Alloy-Steel Riser Clamps (MSS Type 42): For support of pipe risers, NPS 3/4 to NPS 20, if longer ends are required for riser clamps.

G. Hanger-Rod Attachments: Unless otherwise indicated and except as specified in

1. Steel Turnbuckles (MSS Type 13): For adjustment up to 6 inches for heavy loads.

2. Steel Clevises (MSS Type 14): For 120 to 450 °F piping installations.

3. Swivel Turnbuckles (MSS Type 15): For use with MSS Type 11, split pipe rings.

4. Malleable-Iron Sockets (MSS Type 16): For attaching hanger rods to various types of building attachments.

5. Steel Weldless Eye Nuts (MSS Type 17): For 120 to 450 °F piping installations.

H. Building Attachments: Unless otherwise indicated and except as specified in

1. Steel or Malleable Concrete Inserts (MSS Type 18): For upper attachment to suspend pipe hangers from concrete ceilings.

2. Top-Beam C-Clamps (MSS Type 19): For use under roof installations with bar-joist construction to attach to top flange of structural shape.

3. Side-Beam or Channel Clamps (MSS Type 20): For attaching to bottom flange of beams, channels or angles.

4. Center-Beam Clamps (MSS Type 21): For attaching to center of bottom flange to beams.

5. Welded Beam Attachments (MSS Type 22): For attaching to bottom of beams if loads are considerable and rod sizes are large.

6. C-Clamps (MSS Type 23): For structural shapes

7. Top-Beam Clamps (MSS Type 25): For top of beams if hanger rod is required tangent to flange edge.

8. Side-Beam Clamps (MSS Type 27): For bottom of steel I-beams.

9. Steel-Beam Clamps with Eye Bolts (MSS Type 28): For attaching to bottom of steel I-beams for heavy loads.

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10. Linked-Steel Clamps with Eye Bolts (MSS Type 29): For attaching to bottom of steel I-beams for heavy loads, with link extension.

11. Malleable Beam Clamps with Extension Pieces (MSS Type 30): For attaching to structural steel.

12. Plate Lugs (MSS Type 57): For attaching to steel beams if flexibility at beam is required.

13. Horizontal Travelers (MSS Type 58): For supporting piping systems subject to linear horizontal movement where head room is limited.

I. Saddles and Shields: Unless otherwise indicated and except as specified in

1. Steel Pipe-Covering Protection Saddles (MSS Type 39): To fill interior voids with insulation that matches adjoining insulation.

2. Protection Shields (MSS Type 40): Of length recommended by manufacturer to prevent crushing insulation.

2.2 MISCELLANEOUS MATERIALS

A. Powder-Actuated Drive-Pin Fasteners: Powder-actuated type, drive-in attachments with pull-out and shear capacities appropriate for supported loads and building materials where uses.

B. Mechanical-Anchor Fasteners: Insert-type attachment with pull-out and shear capacities appropriate for supported loads and building materials where uses.

C. Structural Steel: ASTM A36, steel plates, shapes and bars, stainless, black and galvanized.

D. Grout: ASTM C1107, Grade B, factory-mixed and packaged, non-shrink and nonmetallic, dry, hydraulic cement grout.

1. Characteristics: Post hardening and volume adjusting; recommended for both interior and exterior applications.

2. Properties: Nonstaining, noncorrosive and nongaseous.

3. Design Mix: 5,000 psi, 28 day compressive strength.

2.3 FLASHING

A. Metal Flashing: 26 gauge, galvanized steel.

B. Metal Counterflashing: 22 gauge, galvanized steel C. Lead Flashing:

1. Waterproofing: 5 lb./sq. ft. sheet lead.

2. Soundproofing: 1 lb./sq. ft. sheet lead.

D. Flexible Flashing: 47 mil thick sheet compatible with roofing.

E. Caps: Steel, 22 gauge minimum; 16 gauge at fire resistant elements.

FSWA 15060-5

2.4 SLEEVES

A. Sleeves for Pipes Through Non-Fire Rated Floors: 18 gauge thick galvanized steel.

B. Sleeves for Pipes Through Non-Fire Rated Beams, Walls, Footings and Potentially Wet Floors: Steel pipe or 18 gauge galvanized steel.

C. Sleeves for Pipes Through Fire Rated and Fire Resistive Floors and Walls and Fire Proofing: Prefabricated fire rated sleeves including seals, UL listed.

D. Fire Stopping Insulation: Glass fiber type, non-combustible.

E. Sealant: Acrylic.

3.1 INSERTS

A. Provide inserts for suspending hangers from reinforced concrete slabs and sides of reinforced concrete beams.

B. Provide hooked rod to concrete reinforcement section for inserts, carrying pipe over 4 inches.

C. Install inserts before concrete is placed. Fasten inserts to forms and install reinforcing bars through openings at top of inserts.

3.2 HANGER AND SUPPORT INSTALLATION

A. Pipe Hanger and Support Installation: Comply with MSS SP-69 and MSS SP-89.

Install hangers, supports, clamps and attachments as required to properly support piping from building structure.

B. Install building attachments within concrete slabs or attach to structural steel.

Space attachments within maximum piping span length indicated in MSS SP-69 or as indicated below, whichever is more stringent. Install additional attachments at concentrated loads, including valves, flanges, guides, strainers and expansion joints and at changes in direction of piping.

Support horizontal piping as follows:

Pipe Size Maximum Hanger Spacing

1/2” to 1-1/4” 6’-6”

1-1/2” to 2” 10’-0”

2-1/2” to 3” 10’-0” 4” to 6” 10’-0” 8” to 12” 14’-0”

14” and Over 20’-0” PVC (all sizes) 6’-0”

FSWA 15060-6

C. Install powder-actuated drive-pin fasteners in concrete after concrete is placed and completely cured. Verify usage in lightweight concrete and concrete less than 4” thick. Use operators that are licensed by powder-actuated tool manufacturer. Install fasteners according to powder-actuated tool manufacturer’s operating manual.

D. Install mechanical-anchor fasteners in concrete after concrete is placed and completely cured. Verify usage in lightweight concrete and concrete less than 4” thick. Install fasteners according to manufacturer’s written instructions

E. Install hangers and supports complete with necessary inserts, bolts, rods, nuts, washers and other accessories. Install hangers to provide minimum 1/2 inch space between finished covering and adjacent work.

F. Where several pipes can be installed in parallel and at the same elevation, provide multiple or trapeze hangers.

G. Support riser piping independently of connected horizontal piping.

H. Install hangers and supports to allow controlled thermal and seismic movement of piping systems, to permit freedom of movement between pipe anchors and to facilitate action of expansion joints, expansion loops, expansion bends and similar units.

I. Load Distribution: Install hangers and supports so that piping live and dead loads and stresses from movement will not be transmitted to connected

J. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes and so maximum pipe deflections allowed by ASME B31.9 “Building Services Piping”, is not exceeded.

K. Insulated Piping: Comply with the following:

1. Attach clamps and spacers to piping.

a. Piping Operating above Ambient Air Temperature: Clamp may project through insulation.

b. Piping Operating below Ambient Air Temperature: Use thermal-hanger shield insert with clamp sized to match OD of insert.

c. Do not exceed pipe stress limits according to ASME B31.9.

2. Install MSS SP-58, Type 39 protection saddles, if insulation without vapor barrier is indicated. Fill interior voids with insulation that matches adjoining insulation.

3. Install MSS SP-58, Type 40 protective shields on cold piping with vapor barrier. Shields shall span arc of 180 degrees.

4. Shield Dimensions for Pipe: Not less than the following:

FSWA 15060-7

a. NPS 1/4 to NPS 3-1/2: 12 inches long and 0.048 inch thick.

b. NPS 4: 12 inches long and 0.06 inch thick.

c. NPS 5 and NPS 6: 18 inches long and 0.06 inch thick.

5. Insert Material: Length at least as long as protective shield.

6. Thermal-Hanger Shields: Install with insulation same thickness as piping insulation.

3.3 SLEEVES

A. Set sleeves in position in formwork. Provide reinforcing around sleeves.

B. Size sleeves large enough to allow for movement due to expansion and contraction. Provide for continuous insulation wrapping.

C. Extend sleeves through floors one inch above finished floor level. Caulk sleeves full depth and provide floor plate.

D. Where piping or ductwork penetrates floor, ceiling or wall, close off space between pipe r duct and adjacent work with stuffing insulation and caulk seal.

Provide close fitting metal collar or escutcheon covers at both sides of penetration.

E. Install stainless steel escutcheons at finished surfaces.

3.4 FLASHING

A. Provide flexible flashing and metal counterflashing where piping and ductwork penetrate weather or waterproofed walls, floors and roofs.

3.5 EQUIPMENT BASES AND SUPPORTS

A. Provide templates, anchor bolts and accessories for mounting and anchoring

B. Fabricate structural-steel stands to suspend equipment from structure above or to support equipment above floor.

C. Grouting: Place grout under supports for equipment and make smooth bearing surface.

3.6 METAL FABRICATION

A. Cut, drill and fit miscellaneous metal fabrications for heavy-duty steel trapezes and equipment supports.

B. Fit exposed connections together to form hairline joints. Field-weld connections that cannot be shop-welded because of shipping size limitations.

FSWA 15060-8

C. Field Welding: Comply with AWS D1.1 procedures for shielded metal arc welding, appearance and quality of welds, methods used in correcting welding work and with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. Finish welds at exposed connections so no roughness shows after finishing and contours of welded surfaces match adjacent contours.

3.7 METAL FABRICATION

A. Hanger Adjustment: Adjust hangers to distribute loads equally on attachments and to achieve indicated slope of pipe.

3.8 FINISH

A. Prime coat exposed steel hangers and supports. Hangers and supports located in crawl spaces, pipe shafts and suspended ceiling spaces are not considered exposed.

B. Touching Up: Clean field welds and abraded areas of shop paint.

C. Galvanized Surfaces: Clean welds, bolted connections and abraded areas and apply galvanizing-repair paint to comply with ASTM A780.

END OF SECTION 15060

Section 15083 – Pipe and Tank Insulation

FSWA 15083-1

SECTION 15083 – PIPE AND TANK INSULATION

B. Basis of Design is Armacell ArmaFlex insulation as specified and installed by Morgan Mechanical Insulation, LLC

a. 230 West Chestnut St., Jonestown, PA 17038.

b. (717) 673-5829

c. morganmecinsulation@yahoo.com

A. Tank Insulation.

B. Pipe Tube Insulation.

C. Insulation Cement.

1.3 SUBMITTALS

A. Product Data: Identify thermal conductivity, thickness and jackets (both factory and field applied, if any) for each type of product indicated.

B. Include product description, list of materials and thickness for each service and location.

A. Installer Qualifications: Company specializing in tank and piping insulation application with three years minimum experience. Skilled mechanics shall have successfully completed an apprenticeship program or another craft training program.

B. Fire-Test-Response Characteristics: As determined by testing materials identical to those specifies in the Section according to ASTM E84, by a testing and inspecting agency acceptable to authorities having jurisdiction. Factory label insulation and jacket materials and sealer and cement material containers with appropriate markings of applicable testing and inspecting agency.

1. Insulation Installed Indoors: Flame-spread rating of 25 or less and smoke-developed rating of 50 or less.

1.5 COORDINATION

mailto:morganmecinsulation@yahoo.com

FSWA 15083-2

A. Coordinate size and location of supports, hangers and insulation shields specified in Division 15 Section “Hangers and Supports.”

B. Coordinate clearance requirements with piping installer for insulation application.

1.6 SCHEDULING

A. Schedule insulation application after testing piping systems and, where required, after installing and testing heat-trace tape. Insulation application may begin on segments of piping that have satisfactory test results.

2.1 INSULATION MATERIALS

A. Armacell ArmaFlex – BASIS OF DESIGN

1. 1” thick blanket insulation for tanks.

2. 1” thick tubes for pipe insulation

3. Armacell 520 Adhesive

4. Acceptable Manufacturers:

a. Armacell

b. Or Equal.

3.1 EXAMINATION

A. Examine substrates and conditions for compliance with requirements for installation and other conditions affecting performance of insulation application.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Surface Preparation: Clean and dry pipe and fitting surfaces. Remove materials that will adversely affect insulation application.

3.3 GENERAL APPLICATION REQUIREMENTS

A. Apply insulation materials, accessories and finishes according to the manufacturer’s written instructions; with smooth, straight and even surfaces; free of voids throughout the length of piping, including fittings, valves and specialties.

B. Apply insulation with longitudinal seams at top and bottom of horizontal pipe

FSWA 15083-3

runs.

C. Apply multiple layers of insulation with longitudinal and end seams staggered.

D. Do not weld brackets, clips or other attachment devices to piping, fittings and specialties.

E. Keep insulation materials dry during application and finishing.

F. Apply insulation with tight longitudinal seams and end joints. Bond seams and joints with adhesive recommended by the insulation material manufacturer.

G. Apply insulation with the least number of joints practical.

H. Apply insulation over fittings, valves and specialties, with continuous thermal and vapor-retarder integrity, unless otherwise indicated. Refer to special instructions for applying insulation over fittings, valves and specialties.

I. Hangers and Anchors: Where vapor retarder is indicated, seal penetrations in insulation at hangers, supports, anchors and other projections with vapor-retarder mastic.

1. Apply insulation continuously through hangers and around anchor attachments.

2. For insulation application where vapor retarder are indicated, extend insulation on anchor legs at least 12 inches from point of attachment to pipe and taper insulation ends. Seal tapered ends with a compound recommended by the insulation material manufacturer to maintain vapor retarder.

3. Install insert materials and apply insulation to tightly join the insert. Seal insulation to insulation inserts with adhesive or sealing compound recommended by the insulation material manufacturer.

4. Cover inserts with jacket material matching adjacent pipe insulation.

Install shields over jacket, arranged to protect the jacket from tear or puncture by the hanger, support and shield.

J. Insulation Terminations: For insulation application where vapor retarders are indicated, taper insulation ends. Seal tapered ends with a compound recommended by the insulation material manufacturer to maintain vapor retarder.

K. Apply adhesive and mastics at the manufacturer’s recommended coverage rate.

END OF SECTION 15083

Section 15121 – Expansion Compensation

FSWA 15121-1

SECTION 15121 – EXPANSION COMPENSATION

A. Flexible pipe connections.

B. Expansion joints and compensators.

1.3 DESIGN CRITERIA

A. Base expansion calculations on 50 degrees F installation temperature to 210 degrees F for hot water heating and 140 degrees F for domestic hot water, plus 30 percent safety factor.

A. Flexible pipe connector shop drawing data to include maximum allowable temperature and pressure rating, overall face-to-face length and live length.

B. Expansion joint shop drawings to include maximum allowable temperature and pressure rating, and maximum expansion compensation.

2.1 FLEXIBLE PIPE CONNECTORS - METALLIC

A. For steel piping, construct with stainless steel inner hose and stainless steel braided exterior sleeve.

B. For copper piping, construct with bronze inner hose and braided exterior sleeve.

C. Use connectors suitable for minimum 125 psi WSP and 450 degrees F and 200 psi WOG and 250 degrees F.

D. Acceptable Manufacturers

1. Metraflex

2. Flex-Hose Co.

3. Parts Services, Inc.

4. Or Equal

FSWA 15121-2

2.2 FLEXIBLE PIPE CONNECTIONS - RUBBER

A. Standard

1. Wire and fabric reinforced with butyl hose. Brass fitting both ends.

2. Hose sizes up to 2-1/2 inches: maximum 150 psi working pressure and

220 °F maximum working temperature.

3. Hose sizes greater than 2-1/2 inches: maximum 100 psi working pressure and 220 °F maximum working temperature.

B. Fire Retardant

1. Wire and fabric reinforced with butyl hose. Brass fitting both ends.

2. Hose sizes up to 2-1/2 inches: maximum 150 psi working pressure and

220 °F maximum working temperature.

3. Hose sizes greater than 2-1/2 inches: maximum 100 psi working pressure and 220 °F maximum working temperature.

4. Glass fiber mat mechanically bonded to hose.

C. Acceptable Manufacturers

1. Metraflex

2. Flex-Hose Co.

3. Parts Services, Inc.

2.3 EXPANSION JOINTS

A. Spool type, with single filled arch and integral flanges.

B. Nonmetallic reinforced neoprene.

C. Galvanized split steel retaining rings.

D. Control rod assembly.

E. Acceptable Manufacturers

1. Proco Products, Inc.

2. General Rubber Corporation

3. Mercer Rubber Company

2.4 CONNECTIONS

A. Provide flexible pipe connections and expansion joints suitable to connect to adjoining piping as specified for pipe joints. Use pipe sized units.

3.1 INSPECTION

FSWA 15121-3

A. Examine piping layout and notify Engineer of additional expansion joints required to adequately protect system.

3.2 INSTALLATION

A. Install flexible pipe connectors on pipes connected to equipment supported by vibration isolation and as otherwise specified.

B. Accomplish structural work and provide equipment required to control expansion and contraction of piping, loops, pipe offsets and swing joints and provide corrugated bellows type expansion joints where required.

C. Install flexible connectors at right angles to displacement. Install one end immediately adjacent to isolated equipment and anchor other end.

D. Rigidly anchor pipe to building structure where necessary. Provide pipe guides, where required, so that movement takes place along axis of pipe only.

END OF SECTION 15121

Section 15150 – Sanitary Waste and Vent Piping

FSWA 15150 - 1

Public Water System Upgrades

SECTION 15150

SANITARY WASTE AND VENT PIPING

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes soil and waste, sanitary drainage and vent piping inside the buildings.

1.2 SUBMITTALS

A. Product Data:

1. Piping Materials

2. Couplings

B. Field quality-control test reports.

1.3 QUALITY ASSURANCE

A. Piping materials shall bear label, stamp, or other markings of specified testing agency.

B. Comply with NSF 14, "Plastics Piping Systems Components and Related Materials," for plastic piping components.