Meters and Gages for HVAC Piping ME- Building Group

SECTION 230519 - METERS AND GAGES FOR HVAC PIPING

PART 1 - GENERAL

1.1  RELATED DOCUMENTS

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2  SUMMARY

  1. This Section includes gages for mechanical systems.
  2. Related Sections:

Retain Sections in subparagraphs below that contain requirements Contractor might expect to find in this Section but are specified in other Sections.

  1. Division23 Section "Facility Natural-Gas Piping" for gas meters.

1.3  SUBMITTALS

  1. Product Data: Include scale range, ratings, and calibrated performance curves for each gage, fitting, specialty, and accessory specified.
  2. Shop Drawings: Include schedule indicating manufacturer's number, scale range, fittings, and location for each gage.
  3. Product Certificates: Signed by manufacturers of meters and gages certifying accuracies under specified operating conditions and compliance with specified requirements.
  4. Maintenance Data: For gages to include in maintenance manuals. Include data for the following:
  5. Flow-measuring systems.

PART 2 - PRODUCTS

2.1  MANUFACTURERS

  1. Manufacturers: Unless otherwise directed by the Owner, provide products by one of the following:
  2. Liquid-in-Glass Thermometers:
  3. Dresser Industries, Inc.; Instrument Div.; Weksler Instruments Operating Unit.
  4. Ernst Gage Co.
  5. Marsh Bellofram.
  6. Palmer Instruments, Inc.
  7. Trerice: H. O. Trerice Co.
  8. Weiss Instruments, Inc.
  9. Winter's Thermogauges, Inc.
  10. Insertion Dial Thermometers:
  11. Dresser Industries, Inc.; Instrument Div.; Ashcroft Commercial Sales Operation.
  12. Dresser Industries, Inc.; Instrument Div.; Weksler Instruments Operating Unit.
  13. Reotemp Instrument Corp.
  14. Tel-Tru Manufacturing Co., Inc.
  15. Trerice: H. O. Trerice Co.
  16. Weiss Instruments, Inc.
  17. Pressure Gages:
  18. AMETEK, Inc.; U.S. Gauge Div.
  19. Dresser Industries, Inc.; Instrument Div.; Ashcroft Commercial Sales Operation.
  20. Dresser Industries, Inc.; Instrument Div.; Weksler Instruments Operating Unit.
  21. Ernst Gage Co.
  22. Marsh Bellofram.
  23. Noshok, Inc.
  24. Trerice: H. O. Trerice Co.
  25. Weiss Instruments, Inc.
  26. WIKA Instruments Corp.
  27. Winter's Thermogauges, Inc.
  28. Test Plugs:
  29. Flow Design, Inc.
  30. MG Piping Products Co.
  31. National Meter.
  32. Peterson Equipment Co., Inc.
  33. Sisco Manufacturing Co.
  34. Trerice: H. O. Trerice Co.
  35. Watts Industries, Inc.; Water Products Div.
  36. Wafer-Orifice-Type Flow Elements:
  37. ABB, Inc.; ABB Instrumentation.
  38. Armstrong Pumps, Inc.
  39. Badger Meter, Inc.; Industrial Div. (Tulsa, OK).
  40. ITT Fluid Technology Corp.; ITT Bell & Gossett Div.
  41. Scott Fetzer Co.; Meriam Instrument Div.
  42. Venturi-Type Flow Elements:
  43. Armstrong Pumps, Inc.
  44. Badger Meter, Inc.; Industrial Div. (Tulsa, OK).
  45. Bailey-Fischer & Porter Co.
  46. Flow Design, Inc.
  47. Gerand Engineering Co.
  48. Hyspan Precision Products, Inc.
  49. Leeds & Northrup.
  50. McCrometer, Inc.
  51. Preso Meters Corp.
  52. Victaulic Co. of America.
  53. Vane-Type flow Meters

a. Universal Flow Meters Inc.

b. Flow-Mod-Limited

  1. Pitot-Tube Flowmeters
  2. Dieterich Standard Inc.
  3. Meriam Instruments Div.; Scott Fetzer Co.
  4. Preso Meters Corporation.
  5. Taco, Inc.
  6. Veris, Inc.

2.2  THERMOMETERS, GENERAL

  1. Scale Range: Temperature ranges for services listed are as follows:
  2. Hot Water: 30 to 300 degF, with 2-degree scale divisions
  3. Condenser Water: 0 to 160 degF, with 2-degree scale divisions
  4. Chilled Water: 0 to 100 degF, with 2-degree scale divisions

4.  Steam and Condensate: 50 to 400 degF, with 5-degree scale divisions

  1. Coolant: 0 to 160 Deg F with 2 degree 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.

2.3  LIQUID-IN-GLASS THERMOMETERS

  1. Description: ASTME1.
  2. Case: Die cast and aluminum finished in baked-epoxy enamel, glass front, spring secured, 9inches long.
  3. Adjustable Joint: Finish to match case, 180-degree adjustment in vertical plane, 360-degree adjustment in horizontal plane, with locking device.
  4. Tube: Red or blue reading, organic-liquid filled with magnifying lens.
  5. Scale: Satin-faced nonreflective aluminum with permanently etched markings.
  6. Stem: Copper-plated steel, aluminum, or brass for separable socket; of length to suit installation.

2.4  INSERTION DIAL THERMOMETERS

  1. Description: ASMEB40.3, bimetal type.
  2. Dial: 1-inch diameter.
  3. Case: Stainless steel.
  4. Stem: Dustproof and leakproof 1/8-inch-diameter, tapered-end stem with nominal length of 5 inches

2.5  SEPARABLE SOCKETS

  1. Description: Fitting with protective socket for installation in threaded pipe fitting to hold fixed thermometer stem.
  2. Material: Brass, for use in copper piping.
  3. Material: Stainless steel, for use in steel piping.
  4. Extension-Neck Length: Nominal thickness of 2 inches but not less than thickness of insulation. Omit extension neck for sockets for piping not insulated.
  5. Insertion Length: To extend to one-third of diameter of pipe.
  6. Cap for temporary gages: Threaded, with chain permanently fastened to socket.
  7. Heat-Transfer Fluid: Oil or graphite.

2.6  THERMOMETER WELLS

  1. Description: Fitting with protective well for installation in threaded pipe fitting to hold test thermometer.
  2. Material: Brass, for use in copper piping.
  3. Material: Stainless steel, for use in steel piping.
  4. Extension-Neck Length: Nominal thickness of 2 inches but not less than thickness of insulation. Omit extension neck for wells for piping not insulated.
  5. Insertion Length: To extend to one-third of diameter of pipe.
  6. Cap for temporary gages: Threaded, with chain permanently fastened to socket.
  7. Heat-Transfer Fluid: Oil or graphite.

2.7  PRESSURE GAGES

  1. Description: ASMEB40.1, phosphor-bronze bourdon-tube type with bottom connection; dry type, unless liquid-filled-case type is indicated.
  2. Case: Drawn steel, brass, or aluminum with 6 inch-diameter glass lens for overhead systems; 4-1/2-inch-diameter, glass lens in other locations.
  3. For overhead gages, provide case: drawn steel, brass or aluminum with 1/4 inch diameter, with swivel fitting for overhead systems, to allow reading from the floor level.
  4. Connector: Brass, NPS1/4.
  5. Scale: White-coated aluminum with permanently etched markings.
  6. Accuracy: GradeB, plus or minus 2 percent of middle 50 percent of scale.
  7. Range: Comply with the following:
  8. Vacuum: 30 inches Hg of vacuum to 15 psig of pressure
  9. Fluids under Pressure: Two times the incoming service pressure; or the scheduled pump discharge head pressure, where applicable

2.8  PRESSURE-GAGE FITTINGS

  1. Valves: NPS1/4 brass or stainless-steel needle type.
  2. Syphons: NPS1/4 coil of brass tubing with threaded ends.
  3. Snubbers: ASMEB40.5, NPS1/4 brass bushing with corrosion-resistant porous-metal disc of material suitable for system fluid and working pressure.

2.9  TEST PLUGS

  1. Description: Nickel-plated, brass-body test plug in NPS1/2 fitting.
  2. Body: Length as required to extend beyond insulation.
  3. Pressure Rating: 500 psig minimum.
  4. Core Inserts: One or two self-sealing valves, suitable for inserting 1/8-inch OD probe from dial-type thermometer or pressure gage.
  5. Core Material for Air, Water, Oil, and Gas: 20 to 200 degF chlorosulfonated polyethylene synthetic rubber.
  6. Core Material for Air and Water: Minus 30 to plus 275 degF ethylene-propylene-diene terpolymer rubber.
  7. Test-Plug Cap: Gasketed and threaded cap, with retention chain or strap.

2.10  FLOW-MEASURING SYSTEMS

  1. System includes calibrated flow element, separate meter, hoses or tubing, valves, fittings, and conversion chart 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.
  3. Display: Visual instantaneous rate of flow.
  4. Portable Meters: Differential-pressure gage. Include two 12-foot hoses in carrying case with handle.
  5. Scale: Inches of water, unless otherwise indicated.
  6. Accuracy: Plus or minus 2 percent between 20 and 80 percent of range.
  7. Wafer-Orifice Flow Elements: Differential-pressure-design, orifice-insert flow element made for installation between pipe flanges.
  8. Construction: Cast-iron body, brass valves with integral check valves and caps, and calibrated nameplate.
  9. Pressure Rating: 300 psig.
  10. Temperature Rating: 250 degF.
  11. Venturi Flow Elements: Differential-pressure-design, flow-element fitting made for installation in piping.
  12. Construction: Bronze, brass, or factory-primed steel; with brass fittings and attached tag with flow conversion data. Include ends threaded for NPS2and smaller elements and flanged or welded for NPS2-1/2and larger elements.
  13. Pressure Rating: 250 psig.

3.  Temperature Rating: 250 degF.

  1. Vane Flow Elements: Flow meters for the above service will be mechanical swinging vane type variable area meters. Each meter will have the capability for mechanical indication, switching and transmitting flow status as required by the application. The flow element will be directly linked to the control box for positive switching, flow indication, and remote transmitting. No magnetic coupling will be permitted. Flow meter body construction will be of (aluminum, brass, aluminum bronze, cast iron, cast iron-nickel plated, carbon steel, naval bronze or 316 SS) as required by the application. Internal wetted moving parts will be 300, 400 or 316 series stainless steel. Dynamic and static seals will be VITON as required by the application. Flow meter maximum flows will be capable of air/gas flows from 30 SCFH to 10,000 SCFM and liquid flows from 5 GPH to 1000GPM. Maximum pressure rating to 2000 PSIG and process temperatures to 400F.
  2. Approved Manufacturers: Universal Flow Monitors, Inc. or Flow-Mon-Limited.

2.11  PITOT-TUBE FLOWMETERS

Pitot-tube flowmeters can be used with a transmitter to send signals to a remote meter terminal.

  1. Description: Insertion-type, differential-pressure design for inserting probe into piping and measuring flow directly in gallons per minute.
  2. Construction: Stainless-steel probe of length to span inside of pipe; with integral transmitter and direct-reading scale.
  3. Pressure Rating: 150 psig minimum.
  4. Temperature Rating: 250 degF minimum.

Make selection in paragraph below to match project requirements.

  1. Display: Visual instantaneous rate of flow [with register to indicate total volume in gallons].
  2. Integral Transformer: For low-voltage power connection.
  3. Accuracy: Plus or minus 1 percent for liquids and gases.

2.12  POSITIVE DISPLACEMENT FLOWMETER

  1. Description: Two spiral fluted rotors within the measuring unit by momentarily dividing the fluid being measured and returning these segments to the outlet of the measuring.
  2. Construction: Steel body.
  3. Maximum Flow Capacity: 600 GPM.
  4. Flow Rate: 6 inch RFF.
  5. Display: 5 wheel large dial re-settable register with 8 digit non-reset totalizer.
  6. Basis-of-Design Product: The design is based on Brooks/Brodie Positive Displacement Meter Model B080ACAAAACEAAA with 4200 adjustor. Subject to compliance with requirements, provide either the named product or a comparable substitute acceptable to the Architect/Engineer.

PART 3 - EXECUTION

3.1  GAGE INSTALLATION, GENERAL

  1. Install gages, and accessories according to manufacturer's written instructions for applications where used.

3.2  THERMOMETER INSTALLATION

  1. Install thermometers and adjust vertical and tilted positions.
  2. Install in locations shown on the Drawings:
  3. Inlet and outlet of each hydronic zone.
  4. Inlet and outlet of each hydronic boiler and chiller.
  5. Inlet and outlet of each hydronic coil in air-handling units and built-up central systems.
  6. Inlet and outlet of each hydronic heat exchanger.
  7. Install separable sockets in vertical position in piping tees where fixed thermometers are indicated.
  8. Install with socket extending to one-third of diameter of pipe.
  9. Fill sockets with oil or graphite and secure caps.
  10. Install thermometer wells in vertical position in piping tees where test thermometers are indicated.
  11. Install with stem extending to one-third of diameter of pipe.
  12. Fill wells with oil or graphite and secure caps.

3.3  PRESSURE-GAGE INSTALLATION

  1. Install pressure gages in piping tees with pressure-gage valve located on pipe at most readable position as shown on the Drawings.
  2. Install dry-type pressure gages in the following locations:
  3. Discharge of each pressure-reducing valve.
  4. Building water-service entrance.
  5. Chilled-water and condenser-water inlets and outlets of chillers.
  6. Install liquid-filled-type pressure gages at suction and discharge of each pump.
  7. Install pressure-gage needle valve and snubber in piping to pressure gages.
  8. Exception: Install syphon instead of snubber in piping to steam pressure gages.

3.4  FLOW-MEASURING SYSTEM INSTALLATION

  1. Install flowmeters in accessible and most readable positions in piping systems as shown on the Drawings.
  2. Install flow-measuring elements at discharge of each pump, at inlet of each hydronic coil in built-up central systems, and elsewhere as indicated.
  3. Install differential-pressure-type flow elements with minimum straight lengths of pipe upstream and downstream from element as prescribed by manufacturer's written instructions.
  4. Install wafer-orifice-type flow elements between two pipe flanges.
  5. Install connection fittings for attachment to portable flowmeters in accessible locations.
  6. Install connections, tubing, and accessories between flow elements and meters as prescribed by manufacturer's written instructions.
  7. Install Vane flow meters in all branch connections to each machining center, operation and high pressure skid.
  8. Flow meters need to have independent hangers to support the weight on the upstream and downstream side of the unit.

3.5  CONNECTIONS

  1. Piping installation requirements are specified in other Division23 Sections. Drawings indicate general arrangement of piping and specialties.

3.6  ADJUSTING AND CLEANING

  1. Adjust faces of gages to proper angle for best visibility.
  2. Clean windows of gages and clean factory-finished surfaces. Replace cracked and broken windows, and repair scratched and marred surfaces with manufacturer's touchup paint.

END OF SECTION

Page 6 of 8

Revision Date: 01/21/14 Project & Bid Package

File name: 230519 METERS AND GAGES FOR HVAC PIPING