**November 21, 1997**

**Contract \# TW-0928**

**SPECIAL SPECIFICATION**

**SECTION 15135-S**

**[METERS AND GAGES]{.underline}**

[Page]{.underline}

[PART 1 - GENERAL]{.underline}

1.01 Description. 2

1.02 Related Work. 2

1.03 Quality Assurance. 3

1.04 References. 3

1.05 Submittals. 3

1.06 Delivery, Storage, and Handling 3

[PART 2 - PRODUCTS]{.underline}

2.01 Acceptable Manufacturers. 4

2.02 Thermometers. 5

2.03 Pressure Gages 6

2.04 Flow-Measuring Systems. 7

[PART 3 - EXECUTION]{.underline}

3.01 Installation/Application/Erection. 10

3.02 Adjusting and Cleaning. 11

**SPECIAL SPECIFICATION**

**SECTION 15135-S**

**[METERS AND GAGES]{.underline}**

[PART 1 - GENERAL]{.underline}

1.01 [DESCRIPTION]{.underline}

> A. This Section specifies the physical and performance requirements of
> the meters and gages used on the mechanical systems. Typical locations
> are identified.
>
> B. Meters and gages furnished as part of factory-fabricated equipment
> are specified as part of the equipment assembly in other Sections.

1.02 [RELATED WORK]{.underline}

> A. Section 01300-S
>
> B. Section 15010-S
>
> C. Section 15017-S
>
> D. Section 15050-S
>
> E. Section 15051-S
>
> F. Section 15371-S
>
> G. Section 15K-S
>
> H. Section 15501-S
>
> I. Section 15891-S
>
> J. Section 15893-S

1.03 [QUALITY ASSURANCE]{.underline}

> A. Comply with applicable portions of American Society of Mechanical
> Engineers (ASME) and Instrument Society of America (ISA) standards
> pertaining to construction and installation of meters and gages.
>
> B. Base the types, sizes, capacities, ranges, profiles, connections,
> and dimensional requirements of meters and gages on the Drawings and
> on the specific manufacturer types and models indicated. Meters and
> gages having equal performance characteristics by other manufacturers
> may be considered based on Section 15010.

1.04 [REFERENCES]{.underline}

> A. American National Standards Institute (ANSI) B16.1
>
> B. ANSI B16.24
>
> C. ASME
>
> D. ISA
>
> E. Underwriter\'s Laboratories (UL)

1.05 [SUBMITTALS]{.underline}

> A. Make submittals according to this Section, Section 15010-S, and
> Section 01300-S.
>
> B. Submit product data for each type of meter, gage, and fitting
> specified. Include scale range, ratings, and calibrated performance
> curves, certified where indicated. Submit a meter and gage schedule
> showing manufacturer\'s figure number, scale range, location, and
> accessories for each meter and gage.
>
> C. Submit maintenance data in the operating and maintenance manual as
> specified in Section 01300-S. Include data for the following:
>
> 1\. Test plugs.
>
> 2\. Flow measuring systems.
>
> 3\. Flow meters.

1.06 [DELIVERY, STORAGE, AND HANDLING]{.underline}

> A. See Section 15010-S.

[PART 2 - PRODUCTS]{.underline}

2.01 [ACCEPTABLE MANUFACTURERS]{.underline}

> A. Subject to compliance with requirements, provide products by one of
> the following:
>
> 1\. Liquid-in-Glass Thermometers:
>
> a\. Marsh Instrument Co.
>
> b\. Marshalltown Instruments, Inc.
>
> c\. H.O. Trerice Co.
>
> d\. Weiss Instruments, Inc.
>
> e\. Weksler Instruments Corp.
>
> 2\. Pressure Gages:
>
> a\. AMETEK, U.S. Gauge Div.
>
> b\. Ashcroft by Dresser Industries, Instrument Div.
>
> c\. Marsh Instrument Co.
>
> d\. Marshalltown Instruments, Inc.
>
> e\. H.O. Trerice Co.
>
> f\. Weiss Instruments, Inc.
>
> g\. Weksler Instruments Corp.
>
> h\. WIKA Instruments Corp.
>
> 3\. Test Plugs:
>
> a\. Flow Design, Inc.
>
> b\. MG Piping Products Co.
>
> c\. Peterson Equipment Co., Inc.
>
> d\. Sisco Co., Spedco, Inc.
>
> e\. H.O. Trerice Co.
>
> f\. Watts Regulator Co.
>
> 4\. Turbine Flow Meters:
>
> a\. Badger Meter, Inc.
>
> b\. Baird Controls, Inc.
>
> c\. Data Industrial Corp.
>
> d\. Flow Research Corp.
>
> e\. George Fischer Signet, Inc.

B. [Substitutions]{.underline}: only under provisions of Section 1600-S.

2.02 [THERMOMETERS]{.underline}

> A. General
>
> 1\. Scale Range: Provide a scale range which exceeds the system
> operating range by 100 percent both above and below the operating
> range limits unless noted otherwise on the Drawings. Provide 2-degree
> (deg.) Fahrenheit and 1-deg. Celsius (C) scale divisions.
>
> 2\. Accuracy: Plus or minus 1 percent of range span or plus or minus
> one scale division to maximum of 1.5 percent of range span.
>
> B. Dial Temperature Gauge

1.  Description: 5" diameter dial size, bi-metal silicone dampened coil,
    hermetically scaled, rigid stem, adjustable face location, accuracy
    1% full span, external recalibrator, Ashcroft Type E1.

2.  Case: Stainless steel, glass front, spring secured, 9-inches (in.)
    (230 millimeters \[mm\]) long.

> 3\. Adjustable Joint: Finished to match case, 180-deg (3.1 radius)
> adjustment in vertical plane, 360-deg (6.3 radius) adjustment in
> horizontal plane, with locking device.
>
> 4\. Tube: Red-reading, organic liquid-filled instead of
> mercury-filled, with magnifying lens.
>
> 5\. Scale: Satin-faced nonreflective with permanently etched markings.
>
> 6\. Stem: Rigid type stainless ( ¼ in. dia.) steel, for a separable
> socket of length to suit installation.
>
> C. Wells
>
> 1\. Description: Brass or stainless-steel separable thermometer well.
>
> 2\. Pressure Rating: Not less than piping system design pressure.
>
> 3\. Stem Length: To extend 2 in. (50 mm) into fluid.
>
> 4\. Extension for Insulated Piping: 2 in. (50 mm) nominal, but not
> less than thickness of insulation.
>
> 5\. Threaded Cap Nut: With chain permanently fastened to well and cap.

2.03 [PRESSURE GAGES]{.underline}

> A. Construction
>
> 1\. Description: ASME B40.1, Grade A phosphor-bronze Bourdon-tube
> pressure gage, with bottom connection.
>
> 2\. Case: Drawn steel, brass or aluminum with 4-1/2-in. (115 mm)
> -diameter glass lens.
>
> 3\. Connector: Brass, 1/4-in. (8 mm) NPS.
>
> 4\. Scale: White-coated aluminum, with permanently etched markings.
>
> 5\. Accuracy: Plus or minus 1 percent of range span.
>
> 6\. Range: Conform to the following:
>
> a\. Vacuum: 15-pounds-per-square-inch-gage (psig) of vacuum to 15 psig
> pressure.
>
> b\. Fluids Under Pressure: Provide a scale range which exceeds the
> system operating range by 100 percent both above and below the
> operating range limits unless noted otherwise on the Drawings. Provide
> 2, 5, or 10 unit scale divisions as appropriate to system range.
> Provide psig divisions for all systems but heating, ventilating and
> air-conditioning movement which shall be inches water gage.
>
> 7\. Gages shall be safety-type with rear blowout plug or panel, clear
> plastic cover, and sides and front consisting of one integral part.
> Gages shall be installed with snubbers and 1/4\" bronze needle valves.
> All gages for steam systems shall be provided with siphon tubes and
> snubbers.
>
> B. Accessories
>
> 1\. Syphons: 1/4-in. (8 mm) straight coil of brass tubing with threads
> on each end.
>
> 2\. Snubbers: 1/4-in. (8 mm) brass bushing with corrosion-resistant
> porous-metal disc of material suitable for system fluid and working
> pressure.

2.04 [FLOW-MEASURING SYSTEMS]{.underline}

> A. General
>
> 1\. Flow-measuring systems include calibrated flow element, separate
> meter, hoses or tubing, valves, fittings, and conversion chart that is
> compatible with flow element, meter, and system fluid.
>
> 2\. Flow range of flow-measuring element and meter covers operating
> range of equipment or system where used.
>
> B. Meters
>
> 1\. Turbine Flow Meters
>
> a\. Description: Impeller flow meter made for insertion in hydronic
> piping fluid flow that measures flow directly in gallons/minute (L/s).
>
> b\. Totalization: Include register to indicate total volume in gallons
> (cu. m).
>
> c\. Transmitter: Include a transmitter to translate signal to a 4 to
> 20 milli-Ampere signal.
>
> d\. Indicator: Include a register to indicate instantaneous flow.
>
> e\. Construction: Bronze body and plastic impeller with ceramic
> bearings. Size as indicated on the Drawings.
>
> f\. Pressure Rating: 150 psig (1035 Kpa) minimum.
>
> g\. Temperature Rating: -30 deg. F to 250 deg. F. (-1 deg. C to 125
> deg. C).
>
> h\. Accuracy: Plus or minus 1.5 percent.
>
> i\. Repeatability: Plus or minus 0.25 percent.
>
> j\. Design Basis: Badger Model Industrial Turbo.

2\. Mag Meters

> a\. Description: The magnetic flow meter shall consist of a metering
> flow tube and transmitter. The transmitter shall be equipped with a
> 4-20 mA output. These outputs shall interface with rate
> indicator/totalizer/ Controller. Meter shall be suitable for liquid to
> be metered and FM approved.
>
> b\. Totalization: Include a remote rate indicator/resettable totalizer
> with a NEMA 4 enclosure, LCD display, 4 digit rate indicator, 8 digit
> totalizer.
>
> c\. Transmitter: 4-20 mA analog.
>
> d\. Construction: Full line size with a 304 stainless steel metering
> tube, aluminum coil housing, 150-pound flange end connections, teflon
> liner.
>
> e\. Pressure Rating: 275 psi @ 100°F.

f\. Temperature Rating: Fluid, -15° to 350°F; ambient, -15° to 140°F.

g\. Accuracy: Plus or minus 0.5% of rate.

> h\. Mounting: Capable of horizontal or vertical installation with zero
> distance straight run; no grounding rings required.

i\. Response: System response of 0.1 sec.

j\. Warranty: Standard one year from date of installation.

k\. Design Basis: Hersey 6204.0 - SOT5A-1-000.

3\. Pressure Differential Meters

> a\. Description: Direct reading flow meter that measures flow based on
> a pressure differential created across a built-in in calibrated nozzle
> for the particular fluid-gas or liquid. Meter shall be self-contained
> and complete.
>
> b\. Display: A loop powered two-wire digital display indicator for
> SCFM shall display 4 1/2 digits for flow rate and 8 digits for
> totalization. Includes scaled, open collector output for remote
> totalizer and square root extraction for use with signal output.
> Display shall indicate service.
>
> c\. Transmitter: Solid state strain-gauge to sense the differential
> pressure directly. Device shall provide for read-out at low flow rate
> with 4-20 mA output proportional to flow rate squared. (Square root
> extraction will be required in the receiving device.)
>
> d\. Construction: Full line size with all parts in contact with fluid
> to be 316 SS and teflon.
>
> e\. Pressure Rating: 180 psig @ 212°F maximum.

f\. Temperature Rating: -30°F to 212°F; ambient @ 120°F.

g\. Accuracy: Plus or minus 3% full scale.

> h\. Repeatability: Plus or minus 1% full scale.

i\. Mounting: Capable of mounting in any position with at least 10 pipe
diameters of straight approach at meter inlet.

j\. Warranty: One year from date of installation.

> k\. Design Basis: RCM Flo-Gage.

[PART 3 - EXECUTION]{.underline}

3.01 [INSTALLATION/APPLICATION/ERECTION]{.underline}

> A. Meter and Gage
>
> 1\. Install meters and gages of types, sizes, capacities, and with
> features indicated.
>
> 2\. Install meters, gages, and accessories according to
> manufacturers\' written instructions for applications where used.
>
> B. Thermometer
>
> 1\. Install thermometers and adjust vertical and tilted positions.
>
> 2\. Install thermometers and wells in the following locations in the
> basement and penthouse, only. Install only wells in the following
> locations in the 1^st^, 2^nd^, and 3^rd^ floors. Install as indicated
> on the Drawings:
>
> a\. At inlet and outlet of each hydronic zone.
>
> b\. At inlet and outlet of the chiller.
>
> c\. At inlet and outlet of each hydronic coil in air-handling units
> and built-up central systems.
>
> d\. At inlet and outlet of each hydronic heat exchanger.
>
> e\. At inlet and outlet of each water heater.
>
> 3\. Thermometer Wells: Install in vertical position in piping tees
> where thermometers are indicated.
>
> a\. Install wells with stem extending minimum of 2 in. (50 mm) into
> fluid.
>
> b\. Fill wells with oil or graphite and secure caps.
>
> C. Pressure Gage
>
> 1\. Install pressure gages in piping tee with pressure gage valve
> located on pipe at most readable position.
>
> 2\. Install in the following locations and as indicated on the
> Drawings:
>
> a\. At suction and discharge of each pump.
>
> b\. At inlet and discharge of each pressure-reducing valve.
>
> c\. At building water service entrance.
>
> d\. At chilled water and condenser water inlets and outlets of
> chillers.
>
> e\. At inlet and outlet of each hydronic coil.
>
> f\. At inlet and outlet of each strainer.
>
> 3\. Pressure Gage Needle Valves: Install in piping tee with snubber.
> Install syphon instead of snubber for steam pressure gages.
>
> D. Test Plug
>
> 1\. Install test plugs in piping tees where indicated, located on pipe
> at most readable position. Secure cap.
>
> E. Flow-Measuring Systems
>
> 1\. Install flow meters for piping systems located in accessible
> locations at most readable position.
>
> 2\. Install flow meter system to be readable and accessible at floor
> level.
>
> F. Connections
>
> 1\. Piping installation requirements are specified in other Division
> 15 Sections. The Drawings indicate the general arrangement of piping,
> fittings, and specialties.
>
> 2\. Install meters and gages to allow servicing and maintenance.
>
> 3\. Connect flow-meter transmitters to meters.
>
> 4\. Make electrical connections to power supply and electrically
> operated meters and devices.

3.02 [ADJUSTING AND CLEANING]{.underline}

> A. Calibrate meters according to manufacturer\'s written instructions,
> after installation.
>
> B. Adjusting: Adjust faces of meters and gages to proper angle for
> best visibility.
>
> C. Cleaning: Clean windows of meters and gages and factory-finished
> surfaces. Replace cracked and broken windows and repair scratched and
> marred surfaces with manufacturer\'s touch-up paint.
>
> END OF SECTION