HomeMy WebLinkAbout200050 MECHANICAL MATERIALS AND METHODS.pdfa
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Matt the Miller's Tavern
Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 1
SECTION 20 00 50
Basic Mechanical Materials and Methods
PART 1 � GENERAL
1.01 RELATED SECTIONS:
A. Drawings, general provisions of the Contract, including General and Supplementary
Conditions, and Division�1 Specification Sections and Division 21, 22, and 23
Specification Sections, apply to work of this Section.
B. This section applies to Division 21, 22 and 23 Specification Sections.
1.02 DESCRIPTION OF WORK:
A. This Section includes limited scope general construction materials and methods for
application with mechanical installations as follows:
1. Mechanical equipment nameplate data.
2. Excavation for underground utilities and services, including underground piping
(under the building and from building to utility connection), tanks, basins, and
equipment.
3. Miscellaneous metals for support of mechanical materials and equipment.
4. Joint sealers for sealing around mechanical materials and equipment.
B. This Section specifies materials and installation methods common to Divisions 21, 22
and 23 and includes joining materials, piping specialties, and basic piping installation
instructions.
1. Products Included:
a. Piping Sleeves
b. Pipe Escutcheons
c. Dielectric Unions
d. Sleeve Seals
e. Transition Fittings
f. Water Hammer Arresters
g. Pressure Regulating Valves
h. Relief Valves
i. Flexible Hose Kits
2. Piping specialties furnished as part of factory�fabricated equipment, are specified
as part of equipment assembly in other specification sections.
1.03 SUBMITTALS:
A. General: Submit the following in accordance with Conditions of Contract and Division 1
Specification Sections.
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Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 2
B. Product Data: Submit manufacturer's technical product data, including installation
instructions, and dimensioned drawings for each type of manufactured piping specialty.
Include pressure drop curve or chart for each type and size of pipeline strainer. Submit
schedule showing manufacturer's figure number, scale range, location, and features for
each pipeline specialty.
1. Submit product data for the following products:
a. Piping Sleeves
b. Pipe Escutcheons
c. Dielectric Unions
d. Sleeve Seals
e. Water Hammer Arresters
f. Pressure Regulating Valves
g. Relief Valves
h. Flexible Hose Kits
i. Joint sealers.
j. Access Doors
C. Shop Drawings:
1. Submit for fabricated specialties, indicating details of fabrication, materials, and
method of support.
2. Submit detailing of fabrication and installation for metal fabrications, and wood
supports and anchorage for mechanical materials and equipment.
3. Coordination drawings for access panel and door locations.
D. Maintenance Data: Submit maintenance data and spare parts lists for each type of
manufactured piping specialty. Include this data, product data, and shop drawings in
maintenance manual; in accordance with requirements of Division 1.
E. Quality Control Submittals:
1. Submit welders' certificates specified in Quality Assurance below.
1.04 QUALITY ASSURANCE:
A. Steel Pipe Welding
1. Welder's Qualifications: All welders shall be qualified in accordance with
ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing
Qualifications.
2. Welding procedures and testing shall comply with ANSI Standard B31.1.0 �
Standard Code for Pressure Piping, Power Piping, and The American Welding
Society, Welding Handbook.
B. Steel Support Welding:
1. Qualify welding processes and welding operators in accordance with AWS D1.1
"Structural Welding Code � Steel."
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Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 3
C. Soldering and Brazing procedures shall conform to ANSI B9.1 Standard Safety Code for
Mechanical Refrigeration.
1.05 ADD THE FOLLOWING ITEM AND SUBSECTIONS IN ALL PURDUE PROJECTS
A. Welding and Soldering
1. Welders Testing and Certification:
a. All pipe fitters, plumbers, or other craftsmen must pass an ASME
welding test and present proof of current ASME certification before
doing any welding on this job. The Superintendent shall approve all
welders.
2. Solderers Testing and Certification:
a. All pipe fitters and plumbers must pass a soldering test given by Purdue
before doing any soldering for this job.
3. Approval Period:
a. Welders and solderers approved by the above tests shall be approved for
a period not exceeding five years. After five years, or sooner, if welding
or soldering appears to be below standards, the welder/solderer will be
required to retake the test. If the ASME certification is used for approval,
then a current certification must be presented for each job.
4. Identification Code:
a. When a welder or solderer has been approved, he will be given an
identification code number or letter.
b. For welds, this identification code must be stamped on all work welded
by this welder. 1/4" stamp dies must be used at each weld. The markings
are to be clear and deep in the pipe so that the welder/solderer can always
be identified.
c. For solder joints, the identification number shall be written on the pipe
surface with permanent marker.
d. Improperly Identified Connections:
(1) Any weld not properly identified with a die stamped
identification code number shall be removed and remade.
5. Testing and Replacing Connections:
a. When directed by the Owner's Representative the contractor will cut out
sections of piping containing welds or solders for inspection and testing
purposes.
b. If a connection does not pass the Owner's approved standards, the
Contractor will be required to replace the test section of piping at no
additional cost to the Owner.
c. When a connection is found to be acceptable and meets the Owner's
approved standards, the Owner will reimburse the Contractor for the
replacement costs, and the Contractor will replace the test section of
piping as directed by the Owner's Representative. All time and material
cost slips must be signed by the Owner's Representative.
6. END OF PURDUE ADD
B. Installer Qualifications: Engage an experienced Installer for the installation and
application joint sealers, access panels, and doors.
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Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 4
C. Fire�Resistance Ratings: Where a fire�resistance classification is indicated, provide
access door assembly with panel door, frame, hinge, and latch from manufacturer listed
in the UL "Building Materials Directory" for rating shown.
1. Provide UL Label on each fire�rated access door.
1.06 DELIVERY, STORAGE, AND HANDLING:
A. Provide factory�applied plastic end�caps on each length of pipe and tube, except for
concrete, corrugated metal, hub�and�spigot, and clay pipe. Maintain end�caps through
shipping, storage and handling to prevent pipe�end damage and prevent entrance of dirt,
debris, and moisture.
B. Protect stored pipes and tubes. Elevate above grade and enclose with durable, waterproof
wrapping. When stored inside, do not exceed structural capacity of the floor.
C. Protect flanges, fittings, and specialties from moisture and dirt by inside storage and
enclosure, or by packaging with durable, waterproof wrapping.
D. Replace at no expense to Owner, equipment or material damaged during storage or
handling, as directed by Architect.
E. Ship equipment in original packages, to prevent damaging or entrance of foreign matter.
F. Handle and ship in accordance with manufacturer's recommendations.
G. Deliver joint sealer materials in original unopened containers or bundles with labels
informing about manufacturer, product name and designation, color, expiration period for
use, pot life, curing time, and mixing instructions for multi�component materials.
H. Store and handle joint sealer materials in compliance with the manufacturers'
recommendations to prevent their deterioration and damage.
1.07 PROJECT CONDITIONS:
A. Conditions Affecting Selective Demolition: The following project conditions apply:
1. Protect adjacent materials indicated to remain. Install and maintain dust and
noise barriers to keep dirt, dust, and noise from being transmitted to adjacent
areas. Remove protection and barriers after demolition operations are complete.
2. Locate, identify, and protect mechanical services passing through demolition area
and serving other areas outside the demolition limits. Maintain services to areas
outside demolition limits. When services must be interrupted, install temporary
services for affected areas.
B. Conditions Affecting Excavations: The following project conditions apply:
1. Maintain and protect existing building services which transit the area affected by
selective demolition.
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Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 5
2. Protect structures, utilities, sidewalks, pavements, and other facilities from
damage caused by settlement, lateral movement, undermining, washout, and
other hazards created by excavation operations.
3. Site Information: Subsurface conditions were investigated during the design of
the Project. Reports of these investigations are available for information only;
data in the reports are not intended as representations or warranties of accuracy
or continuity of conditions. The Owner will not be responsible for interpretations
or conclusions drawn from this information.
4. Existing Utilities: Locate existing underground utilities in excavation areas. If
utilities are indicated to remain, support and protect services during excavation
operations.
5. Remove existing underground utilities indicated to be removed.
a. Uncharted or Incorrectly Charted Utilities: Contact utility owner
immediately for instructions.
b. Provide temporary utility services to affected areas. Provide minimum
of 48�hour notice to Architect prior to utility interruption.
C. Environmental Conditions: Apply joint sealers under temperature and humidity
conditions within the limits permitted by the joint sealer manufacturer. Do not apply
joint sealers to wet substrates.
PART 2 � PRODUCTS
2.01 MECHANICAL EQUIPMENT NAMEPLATE DATA:
A. Nameplate: For each piece of power operated mechanical equipment, provide a
permanent operations data nameplate indicating manufacture, project name, operating
and power characteristics, labels of tested compliances, and similar essential data. Locate
nameplates in an accessible location.
2.02 SOIL MATERIALS:
A. Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel,
crushed stone, crushed slag, or natural or crushed sand.
B. Drainage Fill: Washed, evenly graded mixture of crushed stone, or crushed or uncrushed
gravel, with 100 percent passing 1�1/2�inch sieve, and not more than 5 percent passing a
No. 4 sieve.
C. Backfill and Fill Materials: Materials complying with ASTM D 2487 soil classification
groups GW, GP, GM, SW, and SP; free of clay, rock, or gravel larger than 2 inches in
any dimension; debris; waste; frozen materials; and vegetable and other deleterious
matter.
2.03 PIPE AND FITTINGS:
A. Refer to individual piping system Specification Sections for specifications on piping and
fittings relative to that particular system.
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Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 6
2.04 JOINING MATERIALS:
A. Welding Materials: Comply with Section II, Part C, ASME Boiler and Pressure Vessel
Code for welding materials appropriate for the wall thickness and chemical analysis of
the pipe being welded.
B. Brazing Materials: Comply with SFA�5.8, Section II, ASME Boiler and Pressure Vessel
Code for brazing filler metal materials appropriate for the materials being joined.
C. Soldering Materials: Refer to individual piping system specifications for solder
appropriate for each respective system.
D. Gaskets for Flanged Joints:
1. Gasket material shall be full�faced for cast�iron flanges and raised�face for steel
flanges.
a. Select materials to suit the service of the piping system in which installed
and which conform to their respective ANSI Standard (A21.11, B16.20,
or B16.21).
b. Provide materials that will not be detrimentally affected by the chemical
and thermal conditions of the fluid being carried.
2. AWWA C110, rubber, flat face, 1/8 inch thick, unless otherwise indicated; and
full�face or ring type, unless otherwise indicated.
E. Flange Bolts and Nuts: ASME B18.2.1, carbon steel, unless otherwise indicated.
F. Solvent Cements for Joining Plastic Piping:
1. CPVC Piping: ASTM F 493.
2. PVC Piping: ASTM D 2564. Include primer according to ASTM F 656.
3. PVC to ABS Piping Transition: ASTM D 3138.
G. Fiberglass Pipe Adhesive: As furnished or recommended by pipe manufacturer.
2.05 TRANSITION FITTINGS
A. AWWA Transition Couplings: Same size as, and with pressure rating at least equal to
and with ends compatible with, piping to be joined.
1. Manufacturers:
a. Cascade Waterworks Mfg. Co.
b. Dresser Industries, Inc.; DMD Div.
c. Ford Meter Box Company, Incorporated (The); Pipe Products Div.
d. JCM Industries.
e. Smith�Blair, Inc.
f. Viking Johnson.
2. Underground Piping 1�1/2” and Smaller: Manufactured fitting or coupling.
3. Underground Piping 2” and Larger: AWWA C219, metal sleeve�type coupling.
4. Aboveground Pressure Piping: Pipe fitting.
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Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 7
B. Plastic�to�Metal Transition Fittings: CPVC and PVC one�piece fitting with
manufacturer's Schedule 80 equivalent dimensions; one end with threaded brass insert,
and one solvent cement�joint end.
1. Manufacturers:
a. Eslon Thermoplastics.
C. Plastic�to�Metal Transition Adaptors: One�piece fitting with manufacturer's SDR 11
equivalent dimensions; one end with threaded brass insert, and one solvent�cement�joint
end.
1. Manufacturers:
a. Thompson Plastics, Inc.
b.
D. Plastic�to�Metal Transition Unions: MSS SP�107, CPVC and PVC four�part union.
Include brass end, solvent�cement�joint end, rubber O�ring, and union nut.
1. Manufacturers:
a. NIBCO INC.
b. NIBCO, Inc.; Chemtrol Div.
E. Flexible Transition Couplings for Underground Non�pressure Drainage Piping: ASTM C
1173 with elastomeric sleeve, ends same size as piping to be joined, and corrosion�
resistant metal band on each end.
1. Manufacturers:
a. Cascade Waterworks Mfg. Co.
b. Fernco, Inc.
c. Mission Rubber Company.
d. Plastic Oddities, Inc.
2.06 SLEEVES:
A. Sheet�Metal Sleeves: 20 gage, galvanized sheet metal, round tube closed with welded
longitudinal joint.
B. Steel Sleeves: Schedule 40 galvanized, welded steel pipe, ASTM A53, Grade A.
C. Steel sleeves through foundation walls shall be Link�Seal model WS hot dipped
galvanized with integral full circle, continuously welded, water stop plate to assure
positive water sealing and to prevent thrust movement.
2.07 PIPE ESCUTCHEONS:
A. General: Provide pipe escutcheons as specified herein with inside diameter closely fitting
pipe outside diameter, or outside of pipe insulation where pipe is insulated. Select
outside diameter of escutcheon to completely cover pipe penetration hole in floors, walls,
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Matt the Miller's Tavern
Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 8
or ceilings, and pipe sleeve extension, if any. Furnish pipe escutcheons with nickel or
chrome finish for occupied areas, prime paint finish for unoccupied areas.
B. Pipe Escutcheons for Moist Areas: For waterproof floors, and areas where water and
condensation can be expected to accumulate, provide cast brass or sheet brass
escutcheons, solid or split hinged.
C. Pipe Escutcheons for Dry Areas: Provide sheet steel escutcheons, solid or split hinged.
D. Manufacturers: Subject to compliance with requirements, provide pipe escutcheons of
one of the following:
1. Chicago Specialty Mfg. Co.
2. Producers Specialty & Mfg. Corp.
3. Sanitary�Dash Mfg. Co.
2.08 DIELECTRIC FITTINGS
A. General: Provide standard products recommended by manufacturer for use in service
indicated, which effectively isolate ferrous from non�ferrous piping (electrical
conductance), prevent galvanic action, and stop corrosion.
B. Description: Combination fitting of copper alloy and ferrous materials with threaded,
solder joint, plain, or weld�neck end connections that match piping system materials.
C. Insulating Material: Suitable for system fluid, pressure, and temperature.
D. Dielectric Unions: Factory�fabricated, union assembly, for 250�psig minimum working
pressure at 180 deg F. Shall be listed under ASSE Standard No. 1079.
1. Manufacturers:
a. B & K Industries, Inc.
b. Capitol Manufacturing Co.
c. Central Plastics Company.
d. Eclipse, Inc.
e. Epco Sales, Inc.
f. Hart Industries, International, Inc.
g. Perfection Corp.
h. Rockford�Eclipse Div.
i. Watts Industries, Inc.; Water Products Div.
j. Zurn Industries, Inc.; Wilkins Div.
E. Dielectric Flanges: Factory�fabricated, companion�flange assembly, for 150� or 300�psig
minimum working pressure as required to suit system pressures.
1. Manufacturers:
a. Capitol Manufacturing Co.
b. Central Plastics Company.
c. Epco Sales, Inc.
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Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 9
d. Watts Industries, Inc.; Water Products Div.
F. Dielectric�Flange Kits: Companion�flange assembly for field assembly. Include flanges,
full face�or ring�type neoprene or phenolic gasket, phenolic or polyethylene bolt sleeves,
phenolic washers, and steel backing washers.
1. Manufacturers:
a. Advance Products & Systems, Inc.
b. Calpico, Inc.
c. Central Plastics Company.
d. Pipeline Seal and Insulator, Inc.
e.
2. Separate companion flanges and steel bolts and nuts shall have 150� or 300�psig
minimum working pressure where required to suit system pressures.
G. Dielectric Couplings: Galvanized�steel coupling with inert and noncorrosive,
thermoplastic lining; threaded ends; and 300�psig minimum working pressure at 225 deg
F.
1. Manufacturers:
a. Calpico, Inc.
b. Lochinvar Corp.
H. Dielectric Nipples: Electroplated steel nipple with inert and noncorrosive, thermoplastic
lining; plain, threaded, or grooved ends; and 300�psig minimum working pressure at 225
deg F.
1. Manufacturers:
a. Perfection Corp.
b. Precision Plumbing Products, Inc.
c. Sioux Chief Manufacturing Co., Inc.
d. Victaulic Co. of America.
2.09 MECHANICAL SLEEVE SEALS:
A. General: Provide sleeve seals for sleeves located in foundation walls below grade, or in
exterior walls. Modular mechanical type, consisting of interlocking synthetic rubber
links shaped to continuously fill annular space between pipe and sleeve, connected with
bolts and pressure plates which cause rubber sealing elements to expand when tightened,
providing watertight seal and electrical insulation.
B. Manufacturer: Subject to compliance with requirements, provide mechanical sleeve seals
of one of the following:
1. Link Seal as manufactured by Thunderline Corp.
2. MetraSeal as manufactured by Metraflex
3. Pipe Linx as manufactured by Calpico
4. PipeSeal as manufactured by Flexicraft Industries
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Matt the Miller's Tavern
Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 10
2.10 WATER HAMMER ARRESTERS:
A. General: Provide bellows type water hammer arresters, stainless steel casing and
bellows, pressure rated for 250 psi, tested and certified in accordance with PDI Standard
WH�201.
B. Manufacturers: Subject to compliance with requirements, provide water hammer
arresters of one of the following:
1. Amtrol, Inc.
2. Josam Mfg. Co.
3. Smith (Jay R.) Mfg. Co.
4. Tyler Pipe; Sub. of Tyler Corp.
5. Zurn Industries, Inc.; Hydromechanics Div.
2.11 WATER PRESSURE REGULATING VALVES:
A. Pressure Regulating Valves: Single seated, direct operated type; having bronze body
with integral strainer, and complying with requirements of ASSE Standard 1003. Select
proper size for maximum flow rate and inlet and outlet pressures indicated.
B. Manufacturers: Subject to compliance with requirements, provide water pressure
regulating valves of one of the following:
1. Cash
2. Claval Co.
3. Spence
4. Watts Regulator.
2.12 RELIEF VALVES:
A. Provide proper size for relief valve, in accordance with ASME Boiler and Pressure
Vessel Codes, for indicated capacity of the appliance for which installed.
B. Combined Pressure�Temperature Relief Valves: Bronze body, test lever, thermostat,
complying with ANSI Z21.22 listing requirements for temperature discharge capacity.
Provide temperature relief at 210 deg F, and pressure relief at 150 psi.
C. Manufacturers: Subject to compliance with requirements, provide water relief valves of
one of the following:
1. Cash
2. Watts
3. Zurn
2.13 MISCELLANEOUS METALS:
A. Steel plates, shapes, bars, and bar grating: ASTM A 36.
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Matt the Miller's Tavern
Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 11
B. Cold�Formed Steel Tubing: ASTM A 500.
C. Hot�Rolled Steel Tubing: ASTM A 501.
D. Steel Pipe: ASTM A 53, Schedule 40, welded.
E. Fasteners: Zinc�coated, type, grade, and class as required.
2.14 GROUT:
A. Description: ASTM C 1107, Grade B, non�shrink and non�metallic, dry hydraulic�
cement grout.
1. Characteristics: Post�hardening, volume�adjusting, non�staining, noncorrosive,
nongaseous, and recommended for interior and exterior applications.
2. Design Mix: 5000�psi (34.5�MPa), 28�day compressive strength.
3. Packaging: Premixed and factory packaged.
2.15 JOINT SEALERS:
A. General: Joint sealers, joint fillers, and other related materials compatible with each
other and with joint substrates under conditions of service and application.
B. Colors: As selected by the Architect from manufacture's standard colors.
C. Elastomeric Joint Sealers: Provide the following types:
1. Acrylic�Emulsion Sealants: One�part, nonsag, mildew�resistant, paintable
complying with ASTM C 834 recommended for exposed applications on interior
and protected exterior locations involving joint movement of not more than plus
or minus 5 percent.
2. Fire Barrier Penetration Seals are specified in Section 07840 � Fire Stopping.
2.16 ACCESS DOORS AND FRAMES:
A. Flush, Un�insulated, Fire�Rated and non�Fire�Rated Access Doors and Frames with
Exposed Trim: Fabricated from metallic�coated steel sheet. Joints and seams shall be
continuously welded steel with welds ground smooth and flush with adjacent surfaces
B. Size for proper access, adjusting and maintenance:
1. 12 in. x 12 in. minimum for valves, trap primers, shock absorbers, etc.
2. 24 in. x 24 in. minimum for man access to concealed fans, coils, etc., unless
indicated otherwise.
C. Supply as required by work in this Division.
D. Frames
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Carmel, Indiana
Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 12
1. For installation in masonry, concrete, ceramic tile, or wood paneling wall
surfaces, 1” wide exposed perimeter flange and adjustable masonry anchors.
2. For installation in gypsum wallboard or plaster wall surfaces, perforated flanges
with wall board bead.
3. For full bed plaster applications, galvanized expanded metal lath and exposed
casing bead welded to the perimeter of the frame.
4. For installation in gypsum wallboard ceilings, flush access panels and trimless
frames.
5. Fire�Resistance Rating: Provide rating same as wall or ceiling for which access
door is indicated on drawings.
E. Doors
1. Door: Minimum 0.060�inch�thick sheet metal, flush construction with concealed
spring hinges or continuous piano hinge set to open 175 degrees, factory prime
painted.
2. Fire Rated Doors: Insulated flush panel doors with continuous piano hinge and
self�closing mechanism.
3. Latch: Self�latching bolt operated by flush key with interior release.
4. Prepared to receive mortise cylinder lock, specified in Division 8 Section "Door
Hardware," with interior release.
5. Flush, screwdriver�operated cam locks.
F. Manufacturers:
1. Access doors:
a. Karp Associates, Inc.
b. Higgins Mfg. Co.
c. Inryco, Inc.: Milcor.
d. Walsh�Spencer Co.
EDIT THE FOLLOWING CAREFULLY DEPENDING ON WHO IS FURNISHING WHAT
2.17 MISCELLANEOUS FABRICATED METAL WORK
A. Access Platforms:
1. Under General Construction Work.
2. Provide removable gratings, toe�plates and guard rails: suitable for minimum
100 lb per sq .ft. floor loading.
3. Supports:
a. Welded structural steel.
b. Cross�braced on 4 sides.
c. Welded to baseplates for anchor bolting to concrete piers.
4. Provide access platforms for equipment, where indicated or required by
authorities having jurisdiction. Submit shop drawings with details of construction
and method of attachment.
5. In accordance with OSHA regulations.
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Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 13
6. Grating similar to:
a. Steel: Irving "X�Bar".
b. Aluminum: Irving "X�Bar".
c. Fiberglass: Ryerson Duradek I�5000.
B. Ladders:
1. Under General Construction Work.
2. Under General Construction Work except at Cooling Towers.
a. See Section 236500: Cooling Towers,
3. Galvanized structural steel.
4. 18 in. wide.
5. 2 1/2 in. x 1/2 in. side rails.
6. 3/4 in. diameter rungs 12 in. on center.
7. In accordance with OSHA regulations.
C. Gratings in Shafts:
1. Under General Construction Work.
2. Suitable for minimum 100 lb per sq.ft. floor loading.
3. Support on structural steel members.
4. Submit shop drawings with details of construction and method of attachment.
5. Grating similar to:
a. Steel: Irving "X�Bar".
b. Aluminum: Irving "X�Bar".
c. Fiberglass: Ryerson Duradek I�5000.
D. Trench Covers, or Gratings and Frames:
1. Under General Construction Work.
2. Covers:
a. Galvanized checkered steel with:
b. Galvanized expanded and perforated steel with:
(1) Flush drop�type lift handles.
(2) Means for securing to frame for easy removal.
c. 3 ft. long.
d. 1/4 in. thick.
3. Gratings: steel similar to Irving Grating.
4. Frames: 2 in. x 2 in. x 1/4 in. galvanized welded angle iron with welded stops
and lugs for anchoring into concrete.
5. Turn over for setting under General Construction work.
E. Guards and Railings:
1. Furnish guards and railings as indicated and/or as required by Authorities having
Jurisdiction.
2. Provide OSHA approved guards for belt drives and rotating equipment.
3. Guards removable with:
a. Frames: No. 18 USSG steel.
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Project No. 12056 BASIC MECHANICAL MATERIALS AND METHODS 20 00 50 � 14
b. Fronts: No. 20 USSG galvanized perforated steel with:
(1) Covered test openings to permit rpm readings without removal.
c. Supports: galvanized steel angles or channels, braced to maintain
clearances of moving parts.
d. Clearance for motor adjustment.
4. Railings: removable of 1¼ in. pipe and rail fittings.
2.18 PAINTING
A. Manufacturers:
1. Sherwin�Williams.
2. Pittsburgh Plate Glass Co.
3. Pratt and Lambert.
4. Rust�Oleum.
B. Materials:
1. Best grade for its purpose.
2. Deliver in original sealed containers.
3. Apply in accordance with manufacturers instructions.
4. Heat resistant paint for hot piping, equipment and materials.
5. Colors as selected.
PART 3 � EXECUTION
3.01 EXAMINATION:
A. Examine substrates, areas, and conditions, with Installer present, for compliance with
requirements for installation tolerances and other conditions affecting installation and
application of joint sealers and access panels. Do not proceed with installation until
unsatisfactory conditions have been corrected.
3.02 SELECTIVE DEMOLITION:
A. General: Demolish, remove, demount, and disconnect abandoned mechanical materials
and equipment indicated to be removed and not indicated to be salvaged or saved.
B. Materials and Equipment To Be Salvaged: Remove, demount, and disconnect existing
mechanical materials and equipment indicated to be removed and salvaged, and deliver
materials and equipment to the location designated for storage.
C. Disposal and Cleanup: Remove from the site and legally dispose of demolished materials
and equipment not indicated to be salvaged.
3.03 EXCAVATION AND BACKFILL:
A. Slope sides of excavations to comply with local codes and ordinances. Shore and brace
as required for stability of excavation.
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B. Shoring and Bracing: Establish requirements for trench shoring and bracing to comply
with local codes and authorities. Maintain shoring and bracing in excavations regardless
of time period excavations will be open.
1. Remove shoring and bracing when no longer required. Where sheeting is
allowed to remain, cut top of sheeting at an elevation of 30 inches below finished
grade elevation.
C. Install sediment and erosion control measures in accordance with local codes and
ordinances.
D. Dewatering: Prevent surface water and subsurface or groundwater from flowing into
excavations and from flooding project site and surrounding area.
1. Establish and maintain temporary drainage ditches and other diversions outside
excavation limits to convey surface water to collecting or run�off areas. Do not
use trench excavations as temporary drainage ditches.
E. Material Storage: Stockpile satisfactory excavated materials where directed, until
required for backfill or fill. Place, grade, and shape stockpiles for proper drainage.
F. Excavation for Underground Tanks, Basins, and Mechanical Structures: Conform to
elevations and dimensions shown within a tolerance of plus or minus 0.10 foot; plus a
sufficient distance to permit placing and removal of concrete formwork, installation of
services other construction, and for inspection.
1. Excavate, by hand, areas within drip�line of large trees. Protect the root system
from damage and dry�out. Maintain moist conditions for root system and cover
exposed roots with burlap. Paint root cuts of 1 inch in diameter and larger with
emulsified asphalt tree paint.
2. Take care not to disturb bottom of excavation. Excavate by hand to final grade
just before concrete reinforcement is placed.
G. Trenching: Excavate trenches for mechanical installations as follows:
1. Excavate trenches to the uniform width, sufficiently wide to provide ample
working room and a minimum of 6 to 9 inches clearance on both sides of pipe
and equipment.
2. Limit the length of open trench to that in which pipe can be installed, tested, and
the trench backfilled within the same day.
3. Where rock is encountered, carry excavation below required elevation and
backfill with a layer of crushed stone or gravel prior to installation of pipe.
Provide a minimum of 6 inches of stone or gravel cushion between rock bearing
surface and pipe.
4. Excavate trenches for piping and equipment with bottoms of trench to accurate
elevations for support of pipe and equipment on undisturbed soil.
a. For pipes or equipment 6 inches or larger in nominal size, shape bottom
of trench to fit bottom 1/4 of the circumference. Fill unevenness with
tamped sand backfill. At each pipe joint over�excavate to relieve the bell
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or pipe joint of the pipe of loads, and to ensure continuous bearing of the
pipe barrel on the bearing surface.
H. Cold Weather Protection: Protect excavation bottoms against freezing when atmospheric
temperature is less than 35 deg F.
I. Backfilling and Filling: Place soil materials in layers to required sub�grade elevations for
each area classification listed below, using materials specified in Part 2 of this Section.
1. Under walks and pavements, use a combination of sub base materials and
excavated or borrowed materials.
2. Under building slabs, use drainage fill materials.
3. Under piping and equipment, use sub�base materials where required over rock
bearing surface and for correction of unauthorized excavation.
4. For piping less than 30 inches below surface of roadways, provide 4�inch�thick
concrete base slab support. After installation and testing of piping, provide a
4�inch thick concrete encasement (sides and top) prior to backfilling and
placement of roadway sub�base.
J. Backfill excavations as promptly as work permits, but not until completion of the
following:
1. Inspection, testing, approval, and locations of underground utilities have been
recorded.
2. Removal of concrete formwork.
3. Removal of shoring and bracing, and backfilling of voids.
4. Removal of trash and debris.
K. Placement and Compaction: Place backfill and fill materials in layers of not more than 8
inches in loose depth for material compacted by heavy equipment, and not more than 4
inches in loose depth for material compacted by hand�operated tampers.
L. Before compaction, moisten or aerate each layer as necessary to provide optimum
moisture content. Compact each layer to required percentage of maximum dry density or
relative dry density for each area classification specified below. Do not place backfill or
fill material on surfaces that are muddy, frozen, or contain frost or ice.
M. Place backfill and fill materials evenly adjacent to structures, piping, and equipment to
required elevations. Prevent displacement of piping and equipment by carrying material
uniformly around them to approximately same elevation in each lift.
N. Compaction: Control soil compaction during construction, providing minimum
percentage of density specified for each area classification indicated below.
1. Percentage of Maximum Density Requirements: Compact soil to not less than
the following percentages of maximum density for soils which exhibit a
well�defined moisture�density relationship (cohesive soils), determined in
accordance with ASTM D 1557 and not less than the following percentages of
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relative density, determined in accordance with ASTM D 2049, for soils which
will not exhibit a well�defined moisture�density relationship (cohesionless soils).
a. Areas Under Structures, Building Slabs and Steps, Pavements: Compact
top 12 inches of subgrade and each layer of backfill or fill material to 90
percent maximum density for cohesive material, or 95 percent relative
density for cohesionless material.
b. Areas Under Walkways: Compact top 6 inches of sub�grade and each
layer of backfill or fill material to 90 percent maximum density for
cohesive material, or 95 percent relative density for cohesionless
material.
O. Moisture Control: Where sub�grade or layer of soil material must be moisture
conditioned before compaction, uniformly apply water. Apply water in minimum
quantity necessary to achieve required moisture content and to prevent water appearing
on surface during, or subsequent to, compaction operations.
P. Subsidence: Where subsidence occurs at mechanical installation excavations during the
period 12 months after Substantial Completion, remove surface treatment (i.e., pavement,
lawn, or other finish), add backfill material, compact to specified conditions, and replace
surface treatment. Restore appearance, quality, and condition of surface or finish to
match adjacent areas.
3.04 CONCRETE WORK
A. On concrete floors, install equipment on concrete housekeeping pads:
1. Pads 4 in. high unless otherwise noted.
2. Extend 4 in. minimum beyond equipment base, all sides.
3. Concrete work, including forming and reinforcing, [under Division 03]
a. Coordinate size and location with General Contractor.
b. Furnish and locate anchors and anchor bolts.
4. Curbs for field erected plenums similar.
B. Miscellaneous Concrete Items:
1. Concrete work, including forming and reinforcing, [under Division 03 (or insert
specific Section number for this project.)]
2. Concrete for:
a. Anchor and thrust blocks.
b. Underground tank hold down slabs.
c. Pipe trenches.
d. [Others].
3. Refer to details on drawings.
C. Provide foundations for:
1. Pumps.
2. Fans.
3. Air handling units and floor mounted plenums
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4. Refrigeration equipment.
5. Boilers.
6. Air Compressors.
7. Floor mounted tanks
8. Floor mounted control panels.
9. Motors.
10. Heat exchangers.
11. Convertors.
12. As noted.
3.05 CONCRETE BASES
A. Concrete Bases: Anchor equipment to concrete base according to equipment
manufacturer's written instructions and according to seismic codes at Project.
1. Construct concrete bases of dimensions indicated, but not less than 4 inches
larger in both directions than supported unit.
2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise
indicated, install dowel rods on 18�inch centers around the full perimeter of the
base.
3. Install epoxy�coated anchor bolts for supported equipment that extend through
concrete base, and anchor into structural concrete floor.
4. Place and secure anchorage devices. Use supported equipment manufacturer's
setting drawings, templates, diagrams, instructions, and directions furnished with
items to be embedded.
5. Install anchor bolts to elevations required for proper attachment to supported
equipment.
6. Install anchor bolts according to anchor�bolt manufacturer's written instructions.
7. Use 3000�psi, 28�day compressive�strength concrete and reinforcement [as
specified in Division 03 Section "[Cast�in�Place Concrete] [Miscellaneous
Cast�in�Place Concrete]."]
B. Provide concrete as specified herein:
1. One part Portland cement, two parts fine aggregate, and four parts coarse
aggregate.
2. Concrete shall be the same consistency as specified under General Construction
Work.
3. Provide concrete poured�in�place on roughened concrete floor, cleaned and
slushed with coat of cement grout. Do not pour foundation until concrete has set.
4. Foundation shall be puddled and finished smooth.
C. Hold vibration isolation and anchor bolts in position during pour. Set anchor bolts in
oversized sleeves with washers and nuts at bottom. Finish bolts flush with nuts on top.
Foundations shall extend 6 inch beyond equipment, except as noted.
3.06 ERECTION OF METAL SUPPORTS AND ANCHORAGE:
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A. Cut, fit, and place miscellaneous metal fabrications accurately in location, alignment, and
elevation to support and anchor mechanical materials and equipment.
B. Field Welding: Comply with AWS "Structural Welding Code."
3.07 CLEARANCE FROM ELECTRICAL EQUIPMENT
A. Piping or ductwork:
1. Prohibited in (unless specifically serving that area):
a. Electric rooms and closets.
b. Telephone rooms and closets.
c. Elevator machine rooms.
d. Electric switchboard room.
2. Prohibited above an area within 5 ft. of:
a. Transformers.
b. Motor Control Centers.
c. Engine Generators.
3.08 INSTALLATION OF ACCESS DOORS AND PANELS:
A. Set frames accurately in position and securely attached to supports with face panels
plumb and level in relation to adjacent finished surfaces.
B. Adjust hardware and panels after installation for proper operation.
3.09 ACCESS TO VALVES AND EQUIPMENT:
A. Access shall be possible where valves, expansion joints, fire dampers, motors, filters,
control devices, and any other equipment requiring access for servicing, repairs, or
maintenance are located in walls, chases, and/or above ceilings.
B. Definition of Accessible:
1. Valves and dampers may be operated.
2. Control devices may be adjusted.
3. Fire dampers may be reset.
4. Equipment access panels may be opened.
5. Normal maintenance work such as replacement of filters, lubrication of bearings,
etc., may be performed readily within arm's reach of access opening.
6. It shall not be necessary to crawl through furred ceiling space to perform such
operations.
C. Group concealed valves, expansion joints, controls, dampers and equipment requiring
service access, so as to be freely accessible through access doors and to minimize the
number of access doors required.
D. Relocate piping equipment and accessories as required, at no extra cost to afford proper
maintenance access.
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E. For access into ductwork see Section 233300: Ductwork Accessories.
F. Coordinate location of access panels with applicable trades installing walls or ceiling.
1. Coordinate panel locations with lights and other architectural features.
2. Submit proposed panel locations to Architect for review.
G. Arrange for location and marking of removable tiles in splined ceilings where access
panels are not installed.
H. Existing Structures:
1. When installation requires access openings through existing construction,
provide necessary panels, and arrange for respective trades to provide openings
and framing which may be required.
2. Restore adjoining existing surfaces to original condition after new access panels
have been installed.
3.10 PIPE INSTALLATION:
A. Drawings (plans, schematics, and diagrams) indicate the general location and
arrangement of the piping systems. Location and arrangement of piping layout take into
consideration pipe sizing and friction loss, expansion, pump sizing, and other design
considerations.
B. Ream ends of pipes and tubes, and remove burrs. Bevel plain ends of steel pipe.
C. Remove scale, slag, dirt, and debris for both inside and outside of piping and fittings
before assembly.
D. So far as practical, install piping as indicated.
E. Conceal all pipe installations in walls, pipe chases, utility spaces, above ceilings, below
grade or floors, unless indicated otherwise.
F. Install piping free of sags or bends and with ample space between piping to permit proper
insulation applications.
G. Install exposed piping at right angles or parallel to building walls. Diagonal runs are not
permitted, unless expressly indicated on the Drawings.
H. Install piping tight to slabs, beams, joists, columns, walls, and other permanent elements
of the building. Provide space to permit insulation applications, with 1" clearance outside
the insulation. Allow sufficient space above removable ceiling panels to allow for panel
removal.
I. Locate groups of pipes parallel to each other, spaced to permit applying full insulation
and servicing of valves.
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J. Install drains at low points in mains, risers, and branch lines consisting of a tee fitting,
3/4" ball valve, and short 3/4” threaded nipple and cap.
K. Exterior Wall Penetrations: Seal pipe penetrations through exterior walls using sleeves
and mechanical sleeve seals. Pipe sleeves smaller than 6" shall be steel; pipe sleeves 6"
and larger shall be sheet metal.
L. Fire Barrier Penetrations: Where pipes pass through fire rated walls, partitions, ceilings,
or floors, the fire rated integrity shall be maintained. Refer to Division 7 for special
sealers and materials.
M. Testing: Refer to individual piping system specification sections.
3.11 PIPE JOINTS:
A. Steel Pipe Joints:
1. Pipe 2" and Smaller: Thread pipe with tapered pipe threads in accordance with
ANSI B2.1. Cut threads full and clean using sharp dies. Ream threaded ends to
remove burrs and restore full inside diameter. Apply pipe joint lubricant or
sealant suitable for the service for which the pipe is intended on the male threads
at each joint and tighten joint to leave not more than 3 threads exposed.
B. Pipe Larger Than 2":
1. Weld pipe joints (except for exterior water service pipe) in accordance with
ASME Code for Pressure Piping, B31.
2. Weld pipe joints of exterior water service pipe in accordance with AWWA C206.
3. Install flanges on all valves, apparatus, and equipment. Weld pipe flanges to pipe
ends in accordance with ASME B31.1.0 Code for Pressure Piping. Clean flange
faces and install gaskets. Tighten bolts to torque specified by manufacturer of
flange and flange bolts, to provide uniform compression of gaskets.
C. Non�ferrous Pipe Joints:
1. Brazed and Soldered Joints: For copper tube and fitting joints, braze joints in
accordance with ANSI B31.1.0 � Standard Code for Pressure Piping, Power
Piping and ANSI B9.1 � Standard Safety Code for Mechanical Refrigeration.
a. Thoroughly clean tube surface and inside surface of the cup of the
fittings, using very fine emery cloth, prior to making soldered or brazed
joints.
b. Wipe tube and fittings clean and apply flux. Flux shall not be used as the
sole means for cleaning tube and fitting surfaces.
2. Press Fittings: Copper press fittings shall be made in accordance with the
manufacturer’s installation instructions.
a. Tubing shall be fully inserted into the fitting and the tubing marked at the
shoulder of the fitting. The fitting alignment shall be checked against the
mark on the tubing to assure the tubing is fully inserted into the fitting.
b. The joints shall be pressed using the tool approved by the manufacturer.
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3. Mechanical Joints: Flared compression fittings may be used for refrigerant lines
3/4" and smaller.
D. Joints for other piping materials are specified within the respective piping system
sections.
3.12 PIPING CONNECTIONS:
A. Make connections according to the following, unless otherwise indicated:
1. Install unions, in piping 2” and smaller, adjacent to each valve and at final
connection to each piece of equipment.
2. Install flanges, in piping 2�1/2” and larger, adjacent to flanged valves and at final
connection to each piece of equipment.
3. Dry Piping Systems: Install dielectric unions and flanges to connect piping
materials of dissimilar metals.
4. Wet Piping Systems: Install dielectric coupling and nipple fittings to connect
piping materials of dissimilar metals.
3.13 INSTALLATION OF PIPING SPECIALTIES:
A. Pipe Escutcheons: Install pipe escutcheons on each pipe penetration through floors,
walls, partitions, and ceilings where penetration is exposed to view; and on exterior of
building. Secure escutcheon to pipe or insulation so escutcheon covers penetration hole,
and is flush with adjoining surface. Install escutcheons for penetrations of walls, ceilings,
and floors according to the following:
1. Piping with Fitting or Sleeve Protruding from Wall: One�piece, deep�pattern
type.
2. Chrome�Plated Piping: One�piece, cast�brass type with polished chrome�plated
finish.
3. Insulated Piping: One�piece, stamped�steel type with spring clips.
4. Bare Piping at Wall and Floor Penetrations in Finished Spaces: One�piece, cast�
brass type with polished chrome�plated finish.
5. Bare Piping at Wall and Floor Penetrations in Finished Spaces: One�piece,
stamped�steel type.
6. Bare Piping at Ceiling Penetrations in Finished Spaces: One�piece or split�
casting, cast�brass type with polished chrome�plated finish.
7. Bare Piping in Unfinished Service Spaces: One�piece, stamped�steel type with
hinge and set screw or spring clips.
8. Bare Piping in Equipment Rooms: One�piece, stamped�steel type with set screw
or spring clips.
9. Bare Piping in Unfinished Service Spaces: One�piece, cast�brass type with rough
brass finish.
10. Bare Piping in Equipment Rooms: One�piece, cast�brass type.
11. Bare Piping at Floor Penetrations in Equipment Rooms: One�piece, floor�plate
type.
B. Mechanical Sleeve Seals:
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1. The contractor shall determine the required inside diameter of each individual
wall opening before ordering, fabricating, or installing.
2. The inside diameter of each wall opening shall be sized according to the
manufacturer’s recommendations to fit the pipe and assure a water�tight fit.
3. If the pipe is a non�standard size, consult the manufacturer’s representative for
engineering assistance and recommendation.
4. Install in accordance with the manufacturer’s recommendations.
a. Loosely assemble rubber links around pipe with bolts and pressure plates
located under each bolt head and nut.
b. Push into sleeve and center.
c. Tighten bolts until links have expanded to form watertight seal.
C. Water Hammer Arresters: Install in upright position, in locations and of sizes in
accordance with PDI Standard WH�201, at the top of all hot and cold domestic water
risers, at the end of each water header in utility spaces, at the top of all branches to
fixtures, at each solenoid valve or equipment with a quick closing valve.
3.14 INSTALLATION OF PIPE SLEEVES:
A. Sleeves are not required for core�drilled holes.
B. Permanent sleeves are not required for holes formed by removable PE sleeves.
C. Pipe Sleeves: Install pipe sleeves of types indicated where piping passes through walls,
floors, ceilings, and roofs. Do not install sleeves through structural members of work,
except as detailed on drawings, or as reviewed by Architect/Engineer.
1. Install sleeves accurately centered on pipe runs. Size sleeves so that piping and
insulation (if any) will have free movement in sleeve, including allowance for
thermal expansion; but not less than 2 pipe sizes larger than piping run.
2. Where insulation includes vapor barrier jacket, provide sleeve with sufficient
clearance for installation. Install length of sleeve equal to thickness of
construction penetrated, and finish flush to surface; except floor sleeves.
3. Extend floor sleeves 1/4" above level floor finish and 3/4" above floor finish
sloped to drain.
a. Extend sleeves installed in floors of mechanical equipment areas or other
wet areas 2 inches above finished floor level.
b. Extend cast�iron sleeve fittings below floor slab as required to secure
clamping ring if ring is specified.
4. Provide temporary support of sleeves during placement of concrete and other
work around sleeves, and provide temporary closure to prevent concrete and
other materials from entering sleeves.
5. Install 20 gauge galvanized sheetmetal sleeves at interior wallboard, drywall, or
plasterboard partitions and ceilings other than suspended ceilings.
D. Fire�Barrier Penetrations: Maintain indicated fire rating of walls, partitions, ceilings, and
floors at pipe penetrations. Seal pipe penetrations with firestop materials.
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E. Aboveground, Exterior�Wall Pipe Penetrations: Seal penetrations using sleeves and
mechanical sleeve seals. Select sleeve size to allow for 1�inch annular clear space
between pipe and sleeve for installing mechanical sleeve seals.
1. Install steel pipe for sleeves smaller than 6 inches in diameter.
2. Install cast�iron "wall pipes" for sleeves 6 inches and larger in diameter.
3. Mechanical Sleeve Seal Installation: Select type and number of sealing elements
required for pipe material and size. Position pipe in center of sleeve. Assemble
mechanical sleeve seals and install in annular space between pipe and sleeve.
Tighten bolts against pressure plates that cause sealing elements to expand and
make watertight seal.
F. Underground, Exterior�Wall Pipe Penetrations: Install galvanized steel "wall pipes" for
sleeves. Seal pipe penetrations using mechanical sleeve seals. Select sleeve size to allow
for 1�inch annular clear space between pipe and sleeve or as otherwise recommended by
the sleeve seal manufacturer for installing mechanical sleeve seals.
1. Mechanical Sleeve Seal Installation: Select type and number of sealing elements
required for pipe material and size.
2. Position pipe in center of sleeve. Assemble mechanical sleeve seals and install in
annular space between pipe and sleeve.
3. Tighten bolts against pressure plates that cause sealing elements to expand and
make watertight seal.
3.15 APPLICATION OF JOINT SEALERS:
A. General: Comply with joint sealer manufacturers' printed application instructions
applicable to products and applications indicated, except where more stringent
requirements apply.
1. Comply with recommendations of ASTM C 962 for use of elastomeric joint
sealants.
2. Comply with recommendations of ASTM C 790 for use of acrylic� emulsion
joint sealants.
B. Surface Cleaning for Joint Sealers: Clean surfaces of joints immediately before applying
joint sealers to comply with recommendations of joint sealer manufacturer.
C. Apply joint sealer primer to substrates as recommended by joint sealer manufacturer.
Protect adjacent areas from spillage and migration of primers, using masking tape.
Remove tape immediately after tooling without disturbing joint seal.
D. Tooling: Immediately after sealant application and prior to time shining or curing begins,
tool sealants to form smooth, uniform beads; to eliminate air pockets; and to ensure
contract and adhesion of sealant with sides of joint. Remove excess sealants from
surfaces adjacent to joint. Do not use tooling agents that discolor sealants or adjacent
surfaces or are not approved by sealant manufacturer.
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E. Installation of Fire�Stopping Sealant: Install sealant, including forming, packing, and
other accessory materials, to fill openings around mechanical services penetrating floors
and walls, to provide fire�stops with fire�resistance ratings indicated for floor or wall
assembly in which penetration occurs. Comply with installation requirements established
by testing and inspecting agency.
EDIT SECTION BELOW CAREFULLY
3.16 PAINTING
A. Painting of plumbing systems fire�suppression systems, equipment, and components is
specified in Division 09 Sections "Interior Painting" and "Exterior Painting."
B. Damage and Touchup: Repair marred and damaged factory�painted finishes with
materials and procedures to match original factory finish.
C. Provide labor, materials, and equipment necessary for field prime painting. Protect
flooring and equipment with drop cloths and store paint and materials in a location where
directed. Using wire brush, remove oil, dirt, rust and grease before applying paint.
D. Apply a heavy coat of bituminous solution paint on piping in concrete or cinder fill or
exposed above roof and on underground joint clamps.
E. Apply epoxy primer for steel piping, cast iron piping (except underground), and all steel
and iron work.
F. Dip uncoated hangers, supports, rods and inserts in epoxy primer. Epoxy primer shall be
Sherwin Williams MIL�P53022B, or approved equal.
G. Finish painting under Division 09 Sections “Interior Panting” and “Exterior Painting.”.
1. Colors coordinated by Mechanical Contractor as directed by Architect.
H. Painting under this Division:
1. Interior of ductwork as far back as visible from outside: flat black.
2. Uncoated hangers, supports, rods and inserts: dip in zinc chromate primer.
3. Factory prime coat for following except as noted.
a. Pumps.
b. Fans.
c. Motors.
d. Equipment.
e. Air outlets.
f. Converter.
g. Refer to all Division 21, 22 and 23 specification sections.
4. Marred surfaces of prime coated equipment and piping: spot prime coat to match
adjacent coat.
5. Shop prime coat for following, except as noted:
a. Structural frames.
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b. Platforms.
c. Ladders.
d. Railings.
e. Tanks.
f. Refer to all Division 21, 22 and 23 specification sections.
I. General:
1. Labor, materials and equipment necessary for field painting.
2. Protect flooring and equipment with drip cloths.
3. Paint and materials stored in location where directed.
4. Oily rags and waste removed from building every night.
5. Furnish each space containing stored painting materials with approved 2½ gallon
fire extinguisher.
6. Wire brush and clean off all oil, dirt and grease areas to be painted before paint is
applied.
7. Mixing:
a. Mixed and strained as required by manufacturer.
b. Use thinners only in accordance with manufacturers recommendation.
c. Follow printed instructions on paint containers. If none are available,
instructions shall be obtained in writing from manufacturer.
8. Workmanship:
a. No painting or finishing shall be done with:
(1) Dust laden air.
(2) Unsuitable weather conditions.
(3) Space temperature below 60˚ F.
b. Pipes being painted: at ambient temperature until paint is dried.
c. Paint spread: uniform and proper film thickness showing no runs, sags,
crawls or other defects.
d. Finished surfaces shall be uniform in sheen, color, and texture.
e. All coats to be thoroughly dry before succeeding coats are applied,
minimum 24 hrs. between coats.
f. Priming undercoat: slightly different color for inspection purposes.
9. Exposed, uninsulated, ungalvanized sheet metal other than stainless steel and
aluminum: Two coats of aluminum paint or alkyd paint color as directed.
10. Exposed, uninsulated, galvanized sheet metal in finished space including
mechanical equipment rooms:
a. One coat galvanized iron primer.
b. Two coats alkyd oil paint, color as directed.
11. Exposed, insulated piping and equipment covering:
a. One coat primer sealer.
b. Two coats alkyd oil paint, color as directed.
12. Finned tube radiation: One coat factory or field applied coat of heat resisting
paint.
13. Paint the following items with two coats alkyd oil paint, color as directed:
a. Exposed steel and metal work not furnished with factory�painted finish.
b. Structural steel supports for piping ductwork and equipment.
c. Exposed, uninsulated piping.
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14. Exposed, uninsulated aluminum sheet metal in finished space:
a. One coat zinc chromate primer.
15. No paint on exposed, uninsulated stainless steel sheet metal in finished space.
J. Finish painting:
1. Consisting of two finished coats of high gloss medium or long alkyd paint over
prime coat.
2. Submit color shade for approval.
3. Piping continuously painted in all exposed areas.
4. Color coding per Section 200190 “Mechanical Identification”.
K. Interior of ductwork as far back as visible from outside: flat black.
L. Uncoated hangers, supports, rods and inserts: dip in zinc chromate primer.
M. Factory finish:
1. Steel air outlets in acoustical tile ceilings: baked white enamel.
2. Aluminum air outlets: anodized.
3. Exposed fan coil units: baked enamel.
4. Unit ventilators and unit heaters: baked enamel.
5. [Others].
N. Factory prime coat, except as noted:
1. Pumps.
2. Fans.
3. Motors.
4. Equipment.
5. Registers.
6. Diffusers.
7. Grilles.
O. Marred surfaces of prime coated equipment and piping: spot prime coat to match
adjacent coat.
P. Shop prime coat for following except as noted:
1. Structural frames.
2. Platforms.
3. Ladders.
4. Railings.
5. Tanks.
6. [Others].
END OF SECTION