HomeMy WebLinkAbout200135 METERS AND GAGESTHE KENT
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SECTION 20 01 35 - METERS AND GAGES
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. Extent of meters and gages required by this section is indicated on drawings and/or specified in
Division 21, 22 and 23 sections.
B. Types of meters and gages specified in this section include the following:
1. Pressure Gages and Fittings
a. Pressure Gages
b. Pressure Gage Cocks
c. Pressure Gage Connector Plugs
C. Meters and gages furnished as part of factory-fabricated equipment are specified as part of
equipment assembly in other Division 21, 22 and 23 sections.
1.03 QUALITY ASSURANCE:
A. Manufacturer's Qualifications: Firms regularly engaged in manufacture of meters and gages,
of types and sizes required, whose products have been in satisfactory use in similar service for
not less than 5 years.
B. Codes and Standards:
1. UL Compliance: Comply with applicable UL standards pertaining to meters and gages.
2. ANSI and ISA Compliance: Comply with applicable portions of ANSI and Instrument
Society of America (ISA) standards pertaining to construction and installation of meters
and gages.
C. Certification: Provide meters and gages whose accuracies, under specified operating
conditions, are certified by manufacturer.
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1.04 SUBMITTALS:
A. Product Data: Submit manufacturer's technical product data, including installation instructions
for each type of meter and gage. Include scale range, ratings, and calibrated performance
curves, certified where indicated. Submit meter and gage schedule showing manufacturer's
figure number, scale range, location, and accessories for each meter and gage.
B. Maintenance Data: Submit maintenance data and spare parts lists for each type of meter and
gage. Include this data and product data in Maintenance Manual; in accordance with
requirements of Division 1.
PART 2 - PRODUCTS
2.01 PRESSURE GAGES:
A. General: Provide pressure gages of materials, capacities, and ranges indicated, designed and
constructed for use in service indicated.
B. Type: General use, 1% accuracy, ANSI B40.1 grade A, phosphor bronze bourdon type, bottom
connection.
C. Case: Drawn steel or brass, glass lens, 4 1/2" diameter.
D. Connector: Brass with 1/4" male NPT. Provide protective siphon when used for steam
service.
E. Scale: White coated aluminum, with permanently etched markings.
F. Range: Conform to the following:
1. Water: 0 - 100 psi.
G. Manufacturers: Subject to compliance with requirements, provide pressure gages of one of the
following:
1. Ametek/U.S. Gauge.
2. Ashcroft
3. Ernst Gage Co.
4. H.O. Trerice Company
5. Marsh Instrument Co.; Unit of General Signal.
6. Moeller Instrument Company, Inc.
7. Miljoco Corporation
8. Precision Instrument Company
9. Weiss Instruments, Inc.
10. Weksler
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2.02 PRESSURE GAGE COCKS:
A. General: Provide pressure gage cocks between pressure gages and gage tees on piping
systems. Construct gage cock of brass with 1/4" female NPT on each end, and "T" handle
brass plug.
B. Siphon: 1/4" straight coil constructed of black iron with 1/4" male NPT on each end.
C. Snubber: 1/4" brass bushing with corrosion resistant porous metal disc, through which
pressure fluid is filtered. Select disc material for fluid served and pressure rating.
D. Manufacturers: Same as for pressure gages.
2.03 PRESSURE GAGE CONNECTOR PLUGS:
A. General: Provide pressure gage connector plugs pressure rated for 500 psi and 200 F (93 °C).
Construct of brass and finish in nickel-plated equip with 1/2" NPS fitting, with self-sealing valve
core type neoprene gasketed orifice suitable for inserting 1/8" O.D. probe assembly from dial
type insertion pressure gage. Equip orifice with gasketed screw cap and chain. Provide
extension, length equal to insulation thickness, for insulated piping.
B. Manufacturer: Subject to compliance with requirements, provide pressure gage connector
plugs of one of the following:
1. Peterson Equipment Co.
2. Sisco
PART 3 - EXECUTION
3.01 INSPECTION:
A. Examine areas and conditions under which meters and gages are to be installed. Do not
proceed with work until unsatisfactory conditions have been corrected in manner acceptable to
Installer.
3.02 INSTALLATION OF PRESSURE GAGES:
A. General: Install pressure gages in piping tee with pressure gage cock, located on pipe at most
readable position.
B. Locations: Install in the following locations, and elsewhere as indicated:
1. At discharge of each pressure reducing valve.
2. At water service outlet.
C. Pressure Gage Cocks: Install in piping tee with snubber.
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D. Pressure Gage Connector Plugs: Install in piping tee where indicated, located on pipe at most
readable position. Secure cap.
3.03 ADJUSTING AND CLEANING:
A. Adjusting: Adjust faces of meters and gages to proper angle for best visibility.
B. Cleaning: Clean windows of meters and gages and factory finished surfaces. Replace
cracked or broken windows; repair any scratched or marred surfaces with manufacturer's
touch-up paint.
END OF SECTION