Copyright 2012 AIAMasterSpec Premium12/12

PRODUCT MASTERSPEC LICENSED BY ARCOM TO ZURN INDUSTRIES, LLC.

Copyright 2012 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 to Zurn Industries, LLC ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

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 any end user. A qualified design professional should review and edit the document to suit project requirements.

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SECTION 220523.15 - GATE VALVES FOR PLUMBING PIPING

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/SingleFile Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

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

This Section uses the term "Architect."Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

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

Lead-free statement: Several plumbing fixtures described in this section fall under jurisdiction of the Federal Reduction of Lead in Drinking Water Act (42 USC 300G) which mandates that effective January 4, 2014 the wetted surfaces of any valve, fitting or fixture that comes in contact with potable water must have a weighted-average lead content of no more than 0.25 percent. The end user of this document is urged to be aware of the requirements of authorities having jurisdiction and to specify Lead-Free products when editing this document. Additional information can be found online at

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 Division01 Specification Sections, apply to this Section.

1.2SUMMARY

  1. Section Includes:
  2. Bronze gate valves.
  3. Iron gate valves.
  4. Chainwheels.

1.3DEFINITIONS

Retain terms that remain after this Section has been edited for a project.

  1. CWP:Cold working pressure.
  2. NRS:Nonrising stem.
  3. OS&Y:Outside screw and yoke.
  4. RS:Rising stem.

1.4ACTION SUBMITTALS

  1. Product Data:For each type of valve.

Retain subparagraph below if products come into contact with potable water.

  1. Certification that products comply with NSF61[and NSF372].

1.5DELIVERY, STORAGE, AND HANDLING

Information in this article is paraphrased from MSS publications.

  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 gate valves closed to prevent rattling.
  5. Use the following precautions during storage:
  6. Maintain valve end protection.
  7. 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.
  8. 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

See Editing Instruction No.1 in the Evaluations for cautions about named manufacturers and products.For an explanation of options and Contractor's product selection procedures, see Section016000 "Product Requirements."

2.1GENERAL REQUIREMENTS FOR VALVES

Plumbing valve applications specified in this Section are limited to NPS12 (DN300).Many valves specified are available in larger sizes.

  1. Source Limitations for Valves:Obtain each type of valve from single source from single manufacturer.
  2. ASME Compliance:
  3. ASMEB1.20.1 for threads for threaded end valves.
  4. ASMEB16.1 for flanges on iron valves.
  5. ASMEB16.10 and ASMEB16.34 for ferrous valve dimensions and design criteria.

Valve solder-joint connections are common in smaller sizes of plumbing 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).

  1. ASMEB16.18 for solder joint.
  2. ASMEB31.9 for building services piping valves.

Retain "NSF Compliance" Paragraph below if products come into contact with potable water.

  1. NSF Compliance:NSF61[and NSF372] for valve materials for potable-water service.
  2. Bronze valves shall be made with dezincification-resistant materials.Bronze valves made with copper alloy (brass) containing more than 15 percent zinc are not permitted.

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-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. RS Valves in Insulated Piping:With 2-inch (50-mm) stem extensions.
  4. Valve Bypass and Drain Connections:MSSSP-45.

2.2BRONZE GATE VALVES

Retain one of or more than "Class125, NRS, Bronze Gate Valves," "Class125, RS, Bronze Gate Valves," "Class150, NRS, Bronze Gate Valves," and "Class150, RS, Bronze Gate Valves" paragraphs below if bronze gate valves are required.MSSSP-80 covers bronze gate valves from NPS1/4 to NPS3 (DN8 to DN80).

  1. Class125, NRS, Bronze Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. American Valve, Inc.
  3. Crane Co.; Crane Valve Group; Crane Valves.
  4. Crane Co.; Crane Valve Group; Jenkins Valves.
  5. Crane Co.; Crane Valve Group; Stockham Valves.
  6. Hammond Valve.
  7. Kitz Corporation.
  8. The Macomb Groups.
  9. Milwaukee Valve Company.
  10. NIBCO INC.
  11. Powell Valves.
  12. Red-White Valve Corporation.
  13. Watts Regulator Co.; a division of Watts Water Technologies, Inc.
  14. Insert manufacturer's name>.
  15. Description:
  16. Standard:MSSSP-80, Type1.
  17. CWP Rating:200 psig (1380 kPa).
  18. Body Material:Bronze with integral seat and screw-in bonnet.
  19. Ends:Threaded or solder joint.
  20. Stem:Bronze.
  21. Disc:Solid wedge; bronze.
  22. Packing:Asbestos free.
  23. Handwheel:Malleable iron, bronze, or aluminum.
  1. Class125, RS, Bronze Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. American Valve, Inc.
  3. Crane Co.; Crane Valve Group; Crane Valves.
  4. Crane Co.; Crane Valve Group; Jenkins Valves.
  5. Crane Co.; Crane Valve Group; Stockham Valves.
  6. Hammond Valve.
  7. Kitz Corporation.
  8. The Macomb Groups.
  9. Milwaukee Valve Company.
  10. NIBCO INC.
  11. Powell Valves.
  12. Watts Regulator Co.; a division of Watts Water Technologies, Inc.
  13. Insert manufacturer's name>.
  14. Description:
  15. Standard:MSSSP-80, Type2.
  16. CWP Rating:200 psig (1380 kPa).
  17. Body Material:Bronze with integral seat and screw-in bonnet.
  18. Ends:Threaded or solder joint.
  19. Stem:Bronze.
  20. Disc:Solid wedge; bronze.
  21. Packing:Asbestos free.
  22. Handwheel:Malleable iron, bronze, or aluminum.
  1. Class150, NRS, Bronze Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. Hammond Valve.
  3. Kitz Corporation.
  4. Milwaukee Valve Company.
  5. NIBCO INC.
  6. Powell Valves.
  7. Red-White Valve Corporation.
  8. Watts Regulator Co.; a division of Watts Water Technologies, Inc.
  9. Insert manufacturer's name>.
  10. Description:
  11. Standard:MSSSP-80, Type1.
  12. CWP Rating:300 psig (2070 kPa).
  13. Body Material:Bronze with integral seat and union-ring bonnet.
  14. Ends:Threaded.
  15. Stem:Bronze.
  16. Disc:Solid wedge; bronze.
  17. Packing:Asbestos free.
  18. Handwheel:Malleable iron, bronze, or aluminum.
  1. Class150, RS, Bronze Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. Crane Co.; Crane Valve Group; Crane Valves.
  3. Crane Co.; Crane Valve Group; Stockham Valves.
  4. Hammond Valve.
  5. Kitz Corporation.
  6. The Macomb Groups.
  7. Milwaukee Valve Company.
  8. NIBCO INC.
  9. Powell Valves.
  10. Watts Regulator Co.; a division of Watts Water Technologies, Inc.
  11. Insert manufacturer's name>.
  12. Description:
  13. Standard:MSSSP-80, Type2.
  14. CWP Rating:300 psig (2070 kPa).
  15. Body Material:Bronze with integral seat and union-ring bonnet.
  16. Ends:Threaded.
  17. Stem:Bronze.
  18. Disc:Solid wedge; bronze.
  19. Packing:Asbestos free.
  20. Handwheel:Malleable iron, bronze, or aluminum.

2.3IRON GATE VALVES

Retain one of paragraphs below if iron gate valves are required.MSSSP-70 covers iron gate valves from NPS2 to NPS48 (DN50 to DN1200).Valves specified in this article are from NPS2-1/2 to NPS12 (DN65 to DN300).

  1. Class125, NRS, Iron Gate Valves:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide Zurn Industries, LLC; Wilkins; Model 48 (Lead Free) or comparable product by one of the following:
  2. Hammond Valve.
  3. Kitz Corporation.
  4. Milwaukee Valve Company.
  5. NIBCO INC.
  6. Red-White Valve Corporation.
  7. Insert manufacturer's name>.
  8. Description:
  9. Standard:AWWA Compliant C-509, C-550.
  10. CWP Rating:200 psig (1380 kPa).
  11. Body Material:Ductile iron with AWWA compliant coating.
  12. Ends:[Flanged] [Grooved].
  13. Disc:Solid wedge, resilient coated.
  14. Packing and Gasket:Asbestos free.
  1. Class125, OS&Y, Iron Gate Valves:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide Zurn Industries, LLC; Wilkins; Model 48OSY (Lead Free) or comparable product by one of the following:
  2. Kitz Corporation.
  3. Milwaukee Valve Company.
  4. NIBCO INC.
  5. Red-White Valve Corporation.
  6. Insert manufacturer's name>.
  7. Description:
  8. Standard:AWWA Compliant C-509, C-550.
  9. CWP Rating:200 psig (1380 kPa).
  10. Body Material:Ductile iron with AWWA compliant coating. .
  11. Ends:[Flanged] [Grooved].
  12. Disc:Solid wedge, resilient coated.
  13. Packing and Gasket:Asbestos free.
  1. Class250, NRS, Iron Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. Crane Co.; Crane Valve Group; Crane Valves.
  3. Crane Co.; Crane Valve Group; Stockham Valves.
  4. NIBCO INC.
  5. Insert manufacturer's name>.
  6. Description:
  7. Standard:MSSSP-70, TypeI.
  8. CWP Rating:500 psig (3450 kPa).
  9. Body Material:Gray iron with bolted bonnet.
  10. Ends:Flanged.
  11. Trim:Bronze.
  12. Disc:Solid wedge.
  13. Packing and Gasket:Asbestos free.
  1. Class250, OS&Y, Iron Gate Valves:

Retain "Manufacturers" Subparagraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Subparagraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. Crane Co.; Crane Valve Group; Crane Valves.
  3. Crane Co.; Crane Valve Group; Stockham Valves.
  4. Hammond Valve.
  5. Milwaukee Valve Company.
  6. NIBCO INC.
  7. Powell Valves.
  8. Watts Regulator Co.; a division of Watts Water Technologies, Inc.
  9. Insert manufacturer's name>.
  10. Description:
  11. Standard:MSSSP-70, TypeI.
  12. CWP Rating:500 psig (3450 kPa).
  13. Body Material:Gray iron with bolted bonnet.
  14. Ends:Flanged.
  15. Trim:Bronze.
  16. Disc:Solid wedge.
  17. Packing and Gasket:Asbestos free.

2.4CHAINWHEELS

Retain "Manufacturers" Paragraph and list of manufacturers below to require products from manufacturers listed or a comparable product from other manufacturers.

  1. Manufacturers:Subject to compliance with requirements, [provide products by the following] [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]:

Retain "Basis-of-Design Product" Paragraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.Retain option and delete insert note if manufacturer's name and model number are indicated on Drawings.

  1. Basis-of-Design Product:Subject to compliance with requirements, provide [product indicated on Drawings] <Insert manufacturer's name; product name or designation> or comparable product by one of the following:
  2. Babbitt Steam Specialty Co.
  3. Roto Hammer Industries.
  4. Trumbull Industries.
  5. Insert manufacturer's name>.

Retain option in "Description" Paragraph if chainwheel does not mount directly to valve stem or gearbox shaft.

  1. Description:Valve actuation assembly with sprocket rim, chain guides, chain[, and attachment brackets for mounting chainwheels directly to hand wheels].

In "Sprocket Rim with Chain Guides" Subparagraph below, consider specifying aluminum or zinc or epoxy coatings for corrosive operating conditions.Bronze should be specified for severe operating conditions.See the Evaluations.

  1. Sprocket Rim with Chain Guides:[Ductile iron] [Ductile or cast iron] [Cast iron] [Aluminum] [Bronze], of type and size required for valve.[Include zinc or epoxy coating.]

In "Chain" Subparagraph below, choose chain material appropriate for chosen sprocket rim material.

  1. Chain:[Hot-dip galvanized steel] [Brass] [Stainless steel], of size required to fit sprocket rim.

PART 3 - EXECUTION

3.1EXAMINATION

  1. Examine valve interior for cleanliness, freedom from foreign matter, and corrosion.Remove special packing materials, such as blocks, used to prevent disc movement during shipping and handling.
  2. Operate valves in positions from fully open to fully closed.Examine guides and seats made accessible by such operations.
  3. Examine threads on valve and mating pipe for form and cleanliness.
  4. Examine mating flange faces for conditions that might cause leakage.Check bolting for proper size, length, and material.Verify that gasket is of proper size, that its material composition is suitable for service, and that it is free from defects and damage.
  5. Do not attempt to repair defective valves; replace with new valves.

3.2VALVE INSTALLATION