SECTION 15135 METERS AND GAUGES
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Temperature Gauges and Fittings:
1. Glass thermometers.
2. Dial type insertion thermometers.
3. Thermometer wells.
B. Pressure Gauges and Fittings:
1. Pressure gauges for HVAC.
2. Pressure gauges, pressure switches and seals for process systems.
3. Pressure gauge cocks.
4. Pressure-temperature gauge connector plugs.
5. Gauges furnished as part of factory-fabricated equipment are specified as part of equipment assembly in other Division 15 sections.
1.2 REFERENCES
A. American National Standards Institute (ANSI):
1. ANSI B16.1-89 - Cast-Iron Pipe Flanges and Flanged Fittings.
2. ANSI B26.24-79 - Bronze Pipe Flanges and Flanged Fittings Class 150 and 300.
3. ANSI B31.1-89 - Power Piping.
4. ANSI B40.1-85 - Gauges-Pressure Indicating Dial Type - Elastic Element.
B. Instrument Society of America (ISA).
1.3 SUBMITTALS
A. Shop Drawings: Submit under the provisions of Division 1, including the following:
1. Manufacturer's technical product data, including installation instructions, for each type meter and gauge. Include scale range, ratings, and calibrated performance curves, certified where indicated.
2. Meter and gauge schedule showing manufacturer's figure number, scale range, location, and accessories for each meter and gauge.
B. Operation and Maintenance Data:
1. Maintenance data and spare parts lists for each type of meter and gauge.
2. Submit in accordance with Division 1.
1.4 QUALITY ASSURANCE
A. Manufacturer's Qualifications: Firms regularly engaged in manufacture of meters and gauges, of types and sizes required, whose products have been in satisfactory use in similar service.
B. Regulatory Requirements:
1. UL Compliance: Comply with applicable UL standards pertaining to meters and gauges.
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 gauges.
C. Certification: Provide manufacturer certified meters and gauges meeting accuracies of specified operating conditions.
PART 2 PRODUCTS
2.1 GLASS THERMOMETERS
A. Manufacturers:
1. Marshalltown Instruments, Inc.
2. Palmer, Inc.
3. Weiss Instruments, Inc.
4. Or equal.
B. Provide glass thermometers of materials, capacities, and ranges indicated, designed, and constructed for use in service indicated.
C. Case: Die cast aluminum finished in baked epoxy enamel, glass front, spring secured, 9- inches long.
D. Adjustable Joint: Die cast aluminum, finished to match case, 180º adjustment in vertical plant, 360º adjustment in horizontal plane, with locking device.
E. Tube and Capillary: Magnifying lens, 1% scale range accuracy, shock mounted.
F. Scale: Satin faced, non-reflective aluminum, with permanently etched markings.
G. Stem: Copper plated steel or brass for separate socket. Length to suite installation.
H. Range:
1. Hot Water: 30º to 240º F with 2º F scale divisions.
2. Chilled water: 30º to 100º F with 2º F scale divisions.
2.2 REMOTE READING DIAL THERMOMETERS
A. Manufacturers:
1. Marshalltown Instruments, Inc.
2. Palmer, Inc.
3. Weiss Instruments, Inc.
4. Or equal.
B. Provide glass thermometers of materials, capacities, and ranges indicated, designed, and constructed for use in service indicated.
C. Case: Wall mounted.
D. Case Size: 4 ½-inch.
E. Crystal: Glass cover.
F. Dial Face: Black lines and numbers on white background. Black adjustable printer. Linear scale with 2º F scale divisions.
G. Capillary: Stainless steel capillary protected by a ¼" diameter flexible stainless steel armor. Capillary length as required.
H. Bulb actuated dial.
2.3 THERMOMETER WELLS
A. Manufacturer: Same as thermometers.
B. Provide thermometer wells constructed of brass or stainless steel, pressure rated to match piping system design pressure.
C. Provide cap nut with chain fastened permanently to thermometer well.
D. Provide 2-inch extension for insulated piping.
2.4 PRESSURE GAUGES FOR HVAC
A. Manufacturers:
1. Marshalltown, Instruments, Inc.
2. Palmer, Inc.
3. Weiss Instruments, Inc.
4. Or equal.
B. Provide pressure gauges of materials, capacities and ranges indicated designed, and constructed for use in service indicated.
C. Type: General use, 1% accuracy, ANSI B40.1 Grade A phosphor bronze bourbon type, bottom connection.
D. Case: Drawn steel or brass, glass lens, 4 ½-inch diameter.
E. Connector: Brass with 1/4 inch male NPT. Provide protective siphon when used for steam service.
F. Scale: White coated aluminum with permanently etched markings.
G. Range:
1. Water: 0 to 100 PSI or as indicated during shop drawing review.
2.5 PRESSURE GAUGES, PRESSURE SWITCHES AND SEALS FOR PROCESS SYSTEMS
A. General:
1. Provide gauges for the suction and discharge of pumps as shown on the Drawings.
2. Provide diaphragm seals for all sludge piping system gauges and as shown on the Drawings.
3. Gauge scale: As shown on the Drawings or provided during shop drawing review.
B. Pressure Gauges:
1. Manufacturer:
a. Ashcroft Model 1279 greater than 10 psig.
b. Ashcroft Model 1188 less than 10 psig.
c. Or equal.
2. Dial Size: 4 ½-inch unless otherwise noted.
3. Gauge Case Material: Phenolic plastic with stainless steel snap ring.
4. Sensing Element Material:
a. Bourdon tube: Phosphor-bronze.
b. Bellows: Brass.
5. Provide a liquid filled gauge.
C. Pressure Differential Gauges:
1. Manufacturer:
a. ITT Barton Model 227 or 200.
b. Or equal.
2. Dial Size: 4 ½-inch unless otherwise noted.
3. Accuracy: +2 percent of full scale.
4. Provide zero adjustment accessible from front.
5. Scale: Linear unless noted otherwise.
6. Connections: 1/8-inch NPT.
D. Manometers:
1. Manufacturer:
a. Dwyer Instruments, Inc., Model No. 1230.
b. Or equal.
2. Scale: Minimum 20-inches of water unless otherwise noted.
3. Fluid: Red Oil.
E. Pressure Switches:
1. Manufacturer:
a. Mercoid, Series DA/DS.
b. Or equal.
2. Enclosure: NEMA 4X, unless otherwise noted.
3. Switch Function: Single point adjustable deadband, SPDT contact, minimum 10 amps, continuous at 120 VAC.
4. Wetted Materials: Stainless steel and Buna-N.
5. Adjustable Operating Range: As scheduled.
6. Setpoint: As scheduled, provide external manual adjustment knob.
7. Provide with external manual reset.
F. Diaphragm Seals:
1. Manufacturer:
a. Ashcroft Series 100.
b. Or equal.
2. Pressure Rating: 1500 psig.
3. Bottom and Top Housing Material: AISI 316 stainless steel.
4. Diaphragm Materials: AISI 316L stainless steel.
5. Filling Fluid: Glycerin or manufacturers recommended fluid for material compatibility.
6. Manufacturer to assemble, fill, and calibrate associated pressure gauge and switch.
G. Annular Seals:
1. Manufacturer:
a. Red Valve Series 40.
b. Or Equal.
2. Measures pressure 360° around full inside circumference.
3. Suitable for line pressures up to pipe flange rating.
4. ANSI Class 125/150 lb flange and bolting dimensions.
5. Size: Match installed line size.
6. Bolt and flange material: Carbon steel.
7. Sensing sleeve material: Buna-N or Butyl based on application.
8. Filling fluid: Glycerin or manufacturers recommended fluid for material compatibility.
9. Manufacturer to assemble, fill, and calibrate associated pressure gauge and switch.
2.6 PRESSURE GAUGE COCKS
A. Manufacturers: Same as for pressure gauges.
B. Provide pressure gauge cocks between pressure gauges and gauge tees on piping system. Construct gauge cock of brass with 1/4 inch female NPT on each end, and "T" handle brass plug.
C. Siphon: ¼ inch straight coil constructed of brass tubing with 1/4 inch male NPT on each end.
D. Snubber: ¼ inch brass bushing with corrosion resistant porous metal disc through which pressure fluid is filtered. Select disc material for fluid served and pressure rating.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine areas and conditions under which meters and gauges are to be installed. Do not proceed with Work until unsatisfactory conditions are corrected.
3.2 INSTALLATION OF TEMPERATURE GAUGES
A. Install thermometers in piping systems in sockets in short couplings. Enlarge pipes smaller than 2-½ inches (65 mm) for installation of thermometer sockets. Allow clearance from insulation.
B. Install thermometers in air duct systems on flanges.
C. Locate duct-mounted thermometers minimum 10 feet (3 m) downstream of mixing- dampers, coils, or other devices causing air turbulence.
D. Coil and conceal excess capillary on remote element instruments.
E. Install thermometers in locations where they are easily read from normal operating level. Install vertical to 45º off vertical. Adjust to final angle, clean windows and lenses.
3.3 INSTALLATION OF PRESSURE GAUGES AND SWITCHES
A. Process gauges and switches for process systems shall be installed as shown on the detailed Drawings and scheduled.
B. Factory install all process gauges and switches on diaphragm seals as shown on the detailed Drawings.
C. Locations: Install in following locations and elsewhere as indicated:
1. At suction and discharge of each pump.
2. At discharge of each pressure reducing valve.
D. Install gauges in vertical upright position in the position most easily read by observer standing on floor.
E. Do not turn or loosen gauges or switches on sealed systems.
3.4 CLEANING
A. Clean windows of meters and gauges and factory-finished surfaces. Replace cracked or broken windows, repair any scratched or marred surfaces with manufacturer's touch-up paint.
3.5 SCHEDULE OF THERMOMETERS, PRESSURE GAUGES, PRESSURE SWITCHES AND SEALS FOR PROCESS SYSTEMS
A. Remote Reading Dial Thermometers
Tag
Range
TI-11-3
30 – 250 °F
TI-11-5-2
30 – 250 °F
TI-11-11-1
30 – 250 °F
TI-11-11-2
30 – 250 °F
TI-11-11-3
30 – 250 °F
TI-11-14
30 – 250 °F
TI-11-16
0 – 160 °F
B. Pressure Gauges:
Tag
Range
PI-5-22-1-1
30” Hg VAC to +15 PSI
PI-5-22-1-2
0 - 160 PSI
PI-5-22-2-1
30” Hg VAC to +15 PSI
PI-5-22-2-2
0 - 160 PSI
PI-5-22-3-1
30” Hg VAC to +15 PSI
PI-5-22-3-2
0 - 160 PSI
PI-5-22-4-1
30” Hg VAC to +15 PSI
PI-5-22-4-2
0 - 160 PSI
PI-7-17-1-1
30” Hg VAC to +15 PSI
PI-7-17-1-2
0 - 30 PSI
PI-7-17-2-1
30” Hg VAC to +15 PSI
PI-7-17-2-2
0 - 30 PSI
PI-7-18-1-1
30” Hg VAC to +15 PSI
PI-7-18-1-2
0 - 30 PSI
Tag
Range
PI-7-18-2-1
30” Hg VAC to +15 PSI
PI-7-18-2-2
0 - 30 PSI
PI-11-8-1
0 - 160 PSI
PI-11-8-2
0 - 160 PSI
PI-11-9-1
0 - 160 PSI
PI-11-9-2
0 - 160 PSI
PI-11-13-4
0 - 160 PSI
PI-11-14
0 - 160 PSI
PI-11-16
0 - 160 PSI
PI-11-18
0 - 160 PSI
PI-11-19
0 - 160 PSI
PI-11-21
0 - 160 PSI
PI-11-22
0 - 160 PSI
PI-12-16
0 - 160 PSI
PI-12-17-1
0 - 160 PSI
PI-12-17-2
0 - 160 PSI
PI-12-18-1
0 - 160 PSI
PI-12-18-2
0 - 160 PSI
C. Pressure Differential Gauge:
1. Not Required.
D. Manometers:
1. Not Required.
E. Pressure Switches:
Tag
Adjustable Operating Range
Rising Set Point
PSH-11-18
10 – 200 PSI
110 PSI
PSH-11-19
10 – 200 PSI
110 PSI
PSH-11-21
10 – 200 PSI
110 PSI
PSH-11-22
10 – 200 PSI
110 PSI
PSL-11-16
10 – 200 PSI
100 PSI
PSL-18-1
10 – 200 PSI
100 PSI
PSL-18-2
10 – 200 PSI
100 PSI
F. Diaphragm Seals:
Tag
Line Size (inches)
PE-7-17-1-1
½”
PE-7-17-1-2
½”
PE-7-17-2-1
½”
PE-7-17-2-2
½”
PE-7-18-1-1
½”
PE-7-18-1-2
½”
PE-7-18-2-1
½”
PE-7-18-2-2
½”
PE-5-22-1-1
½”
PE-5-22-1-2
½”
PE-5-22-2-1
½”
PE-5-22-2-2
½”
PE-5-22-3-1
½”
PE-5-22-3-2
½”
PE-5-22-4-1
½”
PE-5-22-4-2
½”
PE-11-18
½”
PE-11-19
½”
Tag
Line Size (inches)
PE-11-21
½”
PE-11-22
½”
G. Annular Seals:
1. Not required.
END OF SECTION
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