Copyright 2005 AIAMASTERSPEC Full Length09/05

PRODUCT MASTERSPEC LICENSED BY ARCOM TO WATTS WATER TECHNOLOGIES

Copyright 2005 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM for limited distribution by Watts Water Technologies ("Licensee"). The license is subject to revocation by ARCOM subject to the Product MasterSpec License Agreement between ARCOM and Licensee.

A clean version (revisions accepted) and an underline-and-strikeout version of this Section, both of which modify the original MasterSpec text, are distributed by Licensee to assist in specifying Licensee's products. Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by Licensee or any end user to which Licensee distributes this Product MasterSpec Section. A qualified design professional should review and edit the document to suit project requirements. For more information, contact Watts Water Technologies, 815 Chestnut Street, North Andover, MA 01845; Phone: (978) 689-6066. Fax (978) 689-6011. Website: E-mail: . For information about MasterSpec contact ARCOM at (800) 424-5080 or visit

SECTION 15112 - GENERAL-DUTY VALVES FOR HVAC PIPING

Revise this Section by deleting and inserting text to meet Project-specific requirements.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

Lead-free statement: Some states require, or may soon require, that the wetted surfaces of plumbing fix-tures described in this section have a weighted-average lead content of no more than 0.25% when used in applications intended to convey or dispense water for human consumption through drinking or cooking. The specifier is urged to be aware of requirements of authorities having jurisdiction and to edit text be-low to suit project requirements. Additional information is available at the following website:

PART 1 - GENERAL

1.1RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division1 Specification Sections, apply to this Section.

1.2SUMMARY

  1. Section Includes:
  2. Bronze angle valves.
  3. Brass ball valves.
  4. Bronze ball valves.
  5. Iron ball valves.
  6. Iron, single-flange butterfly valves.
  7. Iron, grooved-end butterfly valves.
  8. High-performance butterfly valves.
  9. Bronze lift check valves.
  10. Bronze swing check valves.
  11. Iron swing check valves.
  12. Iron swing check valves with closure control.
  13. Iron, grooved-end swing-check valves.
  14. Iron, center-guided check valves.
  15. Iron, plate-type check valves.
  16. Bronze gate valves.
  17. Iron gate valves.
  18. Bronze globe valves.
  19. Iron globe valves.
  20. Lubricated plug valves.
  21. Eccentric plug valves.
  22. Chainwheels.
  23. 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. Division15 HVAC piping Sections for specialty valves applicable to those Sections only.
  2. Division15 Section "Identification for HVAC Piping and Equipment" for valve tags and schedules.

1.3DEFINITIONS

Retain definition(s) remaining after this Section has been edited.

  1. CWP: Cold working pressure.
  2. EPDM: Ethylene propylene copolymer rubber.
  3. NBR: Acrylonitrile-butadiene, Buna-N, or nitrile rubber.
  4. NRS: Nonrising stem.
  5. OS&Y: Outside screw and yoke.
  6. RS: Rising stem.
  7. SWP: Steam working pressure.

1.4SUBMITTALS

Paragraph below is defined in Division1 Section "Submittal Procedures" as an "Action Submittal."

  1. Product Data: For each type of valve indicated.

1.5QUALITY ASSURANCE

  1. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer.
  2. ASME Compliance:
  3. ASMEB16.10 and ASMEB16.34 for ferrous valve dimensions and design criteria.
  4. ASMEB31.1 for power piping valves.
  5. ASMEB31.9 for building services piping valves.

1.6DELIVERY, STORAGE, AND HANDLING

Information in this article is paraphrased from MSS.

  1. Prepare valves for shipping as follows:
  2. Protect internal parts against rust and corrosion.
  3. Protect threads, flange faces, grooves, and weld ends.
  4. Set angle, gate, and globe valves closed to prevent rattling.
  5. Set ball and plug valves open to minimize exposure of functional surfaces.
  6. Set butterfly valves closed or slightly open.
  7. Block check valves in either closed or open position.
  8. Use the following precautions during storage:
  9. Maintain valve end protection.
  10. Store valves indoors and maintain at higher than ambient dew point temperature. If outdoor storage is necessary, store valves off the ground in watertight enclosures.
  11. Use sling to handle large valves; rig sling to avoid damage to exposed parts. Do not use handwheels or stems as lifting or rigging points.

PART 2 - PRODUCTS

2.1GENERAL REQUIREMENTS FOR VALVES

HVAC valve applications specified in this Section are limited to NPS24 (DN600). Many valves specified are available in larger sizes.

  1. Refer to HVAC valve schedule articles for applications of valves.

Caution: Revise pressure ratings and insert temperature ratings in valve articles if valves with higher ratings are required. Valves larger than NPS12 (DN300) typically have a lower pressure rating than smaller valves. Verify pressure requirements for large valves.

  1. Valve Pressure and Temperature Ratings: Not less than indicated and as required for system pressures and temperatures.
  2. Valve Sizes: Same as upstream piping unless otherwise indicated.
  3. Valve Actuator Types:
  4. Gear Actuator: For quarter-turn valves NPS8 (DN200) and larger.
  5. Handwheel: For valves other than quarter-turn types.
  6. Handlever: For quarter-turn valves NPS6 (DN150) and smaller[except plug valves].
  7. Wrench: For plug valves with square heads. Furnish Owner with 1 wrench for every [5] [10] <Insert number> plug valves, for each size square plug-valve head.
  8. Chainwheel: Device for attachment to valve handwheel, stem, or other actuator; of size and with chain for mounting height, as indicated in the "Valve Installation" Article.
  9. Valves in Insulated Piping: With 2-inch (50-mm) stem extensions and the following features:
  10. Gate Valves: With rising stem.
  11. Ball Valves: With extended operating handle of non-thermal-conductive material, and protective sleeve that allows operation of valve without breaking the vapor seal or disturbing insulation.
  12. Butterfly Valves: With extended neck.
  13. Valve-End Connections:
  14. Flanged: With flanges according to ASMEB16.1 for iron valves.
  15. Grooved: With grooves according to AWWAC606.

Valve solder-joint end connections are not recommended for valves in HVAC piping. Soldering and brazing methods used to achieve required pressure-temperature ratings may damage internal valve parts. Special installation requirements for soldered valves may make threaded valves more cost-effective.

Caution: Use solder with melting point below 840 degF (454 degC) for angle, check, gate, and globe valves and below 421 degF (216 degC) for ball valves.

  1. Solder Joint: With sockets according to ASMEB16.18.
  2. Threaded: With threads according to ASMEB1.20.1.
  1. Valve Bypass and Drain Connections: MSSSP-45.

2.2BRONZE ANGLE VALVES

Retain one or more of four paragraphs in this article if bronze angle valves are required. MSSSP-80 covers bronze angle valves NPS1/4 to NPS3 (DN8 to DN80).

  1. Class125, Bronze Angle Valves with Bronze Disc:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Hammond Valve.
  3. Milwaukee Valve Company.
  4. Watts Regulator; a Watts Water Technologies Company
  5. Description:
  6. Standard: MSSSP-80, Type1.
  7. CWP Rating: 200 psig (1380 kPa).
  8. Body Material: ASTMB62, bronze with integral seat and screw-in bonnet.
  9. Ends: Threaded.
  10. Stem and Disc: Bronze.
  11. Packing: Asbestos free.
  12. Handwheel: Malleable iron[,bronze, or aluminum].
  1. Class125, Bronze Angle Valves with Nonmetallic Disc:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. American Valve, Inc.
  3. Watts Regulator; a Watts Water Technologies Company
  4. Description:
  5. Standard: MSSSP-80, Type2.
  6. CWP Rating: 200 psig (1380 kPa).
  7. Body Material: ASTMB62, bronze with integral seat and screw-in bonnet.
  8. Ends: Threaded.
  9. Stem: Bronze.
  10. Disc: PTFE or TFE.
  11. Packing: Asbestos free.
  12. Handwheel: Malleable iron[,bronze, or aluminum].
  1. Class150, Bronze Angle Valves with Bronze Disc:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Crane Co.; Crane Valve Group; Stockham Division.
  3. Kitz Corporation.
  4. Watts Regulator; a Watts Water Technologies Company
  5. Description:
  6. Standard: MSSSP-80, Type1.
  7. CWP Rating: 300 psig (2070 kPa).
  8. Body Material: ASTMB62, bronze with integral seat and union-ring bonnet.
  9. Ends: Threaded.
  10. Stem and Disc: Bronze.
  11. Packing: Asbestos free.
  12. Handwheel: Malleable iron[,bronze, or aluminum].
  1. Class150, Bronze Angle Valves with Nonmetallic Disc:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Hammond Valve.
  3. Powell Valves.
  4. Watts Regulator; a Watts Water Technologies Company
  5. Description:
  6. Standard: MSSSP-80, Type2.
  7. CWP Rating: 300 psig (2070 kPa).
  8. Body Material: ASTMB62, bronze with integral seat and union-ring bonnet.
  9. Ends: Threaded.
  10. Stem: Bronze.
  11. Disc: PTFE or TFE.
  12. Packing: Asbestos free.
  13. Handwheel: Malleable iron[,bronze, or aluminum].

2.3BRASS BALL VALVES

Retain one or more of seven paragraphs in this article if brass ball valves are required. MSSSP-110 covers both brass and bronze, copper-alloy ball valves NPS1/4 to NPS4 (DN8 to DN100). See the Evaluations and manufacturers' catalogs before selecting either brass or bronze ball valves or including both.

Caution: Two-piece ball valves with a full or regular port are recommended for most services. One-piece ball valves have a reduced port and one fewer leak path. Three-piece ball valves are recommended if disassembly without removing valve from piping is required.

Where pressure drop is a concern, use full-port ball valves. For corrosive or high-temperature applications, use stainless-steel-trim ball valves.

  1. One-Piece, Reduced-Port, Brass Ball Valves with Brass Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Kitz Corporation.
  3. Watts Regulator; a Watts Water Technologies Company
  4. Insert manufacturer's name>.
  5. Description:
  6. Standard: MSSSP-110.
  7. CWP Rating: 400 psig (2760 kPa).
  8. Body Design: One piece.
  9. Body Material: Forged brass.
  10. Ends: Threaded.
  11. Seats: PTFE or TFE.
  12. Stem: Brass.
  13. Ball: Chrome-plated brass.
  14. Port: Reduced.
  1. Two-Piece, Full-Port, Brass Ball Valves with Brass Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. DynaQuip Controls.
  3. Flow-Tek, Inc.; a subsidiary of Bray International, Inc.
  4. Hammond Valve.
  5. Jamesbury; a subsidiary of Metso Automation.
  6. Jomar International, LTD.
  7. Kitz Corporation..
  8. Marwin Valve; a division of Richards Industries.
  9. RuB Inc.
  10. Watts Regulator; a Watts Water Technologies Company
  11. Insert manufacturer's name>.
  12. Description:
  13. Standard: MSSSP-110.
  14. SWP Rating: 150 psig (1035 kPa).
  15. CWP Rating: 600 psig (4140 kPa).
  16. Body Design: Two piece.
  17. Body Material: Forged brass.
  18. Ends: Threaded.
  19. Seats: PTFE or TFE.
  20. Stem: Brass.
  21. Ball: Chrome-plated brass.
  22. Port: Full.
  1. Two-Piece, Full-Port, Brass Ball Valves with Stainless-Steel Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Flow-Tek, Inc.; a subsidiary of Bray International, Inc.
  3. Hammond Valve.
  4. Jamesbury; a subsidiary of Metso Automation.
  5. Kitz Corporation.
  6. Marwin Valve; a division of Richards Industries.
  7. RuB Inc.
  8. Watts Regulator; a Watts Water Technologies Company
  9. Description:
  10. Standard: MSSSP-110.
  11. SWP Rating: 150 psig (1035 kPa).
  12. CWP Rating: 600 psig (4140 kPa).
  13. Body Design: Two piece.
  14. Body Material: Forged brass.
  15. Ends: Threaded.
  16. Seats: PTFE or TFE.
  17. Stem: Stainless steel.
  18. Ball: Stainless steel, vented.
  19. Port: Full.
  1. Two-Piece, Regular-Port, Brass Ball Valves with Brass Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Hammond Valve.
  3. Jamesbury; a subsidiary of Metso Automation.
  4. Marwin Valve; a division of Richards Industries.
  5. Watts Regulator; a Watts Water Technologies Company
  6. Description:
  7. Standard: MSSSP-110.
  8. SWP Rating: 150 psig (1035 kPa).
  9. CWP Rating: 600 psig (4140 kPa).
  10. Body Design: Two piece.
  11. Body Material: Forged brass.
  12. Ends: Threaded.
  13. Seats: PTFE or TFE.
  14. Stem: Brass.
  15. Ball: Chrome-plated brass.
  16. Port: Regular.
  1. Two-Piece, Regular-Port, Brass Ball Valves with Stainless-Steel Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Jamesbury; a subsidiary of Metso Automation.
  3. Marwin Valve; a division of Richards Industries.
  4. Watts Regulator; a Watts Water Technologies Company
  5. Description:
  6. Standard: MSSSP-110.
  7. SWP Rating: 150 psig (1035 kPa).
  8. CWP Rating: 600 psig (4140 kPa).
  9. Body Design: Two piece.
  10. Body Material: Brass or bronze.
  11. Ends: Threaded.
  12. Seats: PTFE or TFE.
  13. Stem: Stainless steel.
  14. Ball: Stainless steel, vented.
  15. Port: Regular.
  1. Three-Piece, Full-Port, Brass Ball Valves with Brass Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Jomar International, LTD.
  3. Kitz Corporation.
  4. Watts Regulator Co; a Watts Water Technologies Company
  5. Description:
  6. Standard: MSSSP-110.
  7. SWP Rating: 150 psig (1035 kPa).
  8. CWP Rating: 600 psig (4140 kPa).
  9. Body Design: Three piece.
  10. Body Material: Forged brass.
  11. Ends: Threaded.
  12. Seats: PTFE or TFE.
  13. Stem: Brass.
  14. Ball: Chrome-plated brass.
  15. Port: Full.
  1. Three-Piece, Full-Port, Brass Ball Valves with Stainless-Steel Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. Jomar International, LTD.
  3. Kitz Corporation.
  4. Marwin Valve; a division of Richards Industries.
  5. Watts Regulator Co; a Watts Water Technologies Company
  6. Description:
  7. Standard: MSSSP-110.
  8. SWP Rating: 150 psig (1035 kPa).
  9. CWP Rating: 600 psig (4140 kPa).
  10. Body Design: Three piece.
  11. Body Material: Forged brass.
  12. Ends: Threaded.
  13. Seats: PTFE or TFE.
  14. Stem: Stainless steel.
  15. Ball: Stainless steel, vented.
  16. Port: Full.

2.4BRONZE BALL VALVES

Retain one or more of eight paragraphs in this article if bronze ball valves are required. MSSSP-110 covers both brass and bronze, copper-alloy ball valves NPS1/4 to NPS4 (DN8 to DN100). See the Evaluations and manufacturers' catalogs before selecting either brass or bronze ball valves or including both.

Caution: Two-piece ball valves with a full or regular port are recommended for most services. One-piece ball valves have a reduced port and one fewer leak path. Three-piece ball valves are recommended if disassembly without removing valve from piping is required.

Where pressure drop is a concern, use full-port ball valves. For corrosive or high-temperature applications, use stainless-steel-trim ball valves.

  1. One-Piece, Reduced-Port, Bronze Ball Valves with Bronze Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."

  1. Manufacturers: Subject to compliance with requirements, [provide products by one of the following] [available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following]:
  2. American Valve, Inc.
  3. Watts Regulator; a Watts Water Technologies Company
  4. Description:
  5. Standard: MSSSP-110.
  6. CWP Rating: 400 psig (2760 kPa).
  7. Body Design: One piece.
  8. Body Material: Bronze.
  9. Ends: Threaded.
  10. Seats: PTFE or TFE.
  11. Stem: Bronze.
  12. Ball: Chrome-plated brass.
  13. Port: Reduced.
  1. One-Piece, Reduced-Port, Bronze Ball Valves with Stainless-Steel Trim:

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers. See Division1 Section "Product Requirements."