40 05 61 - Gate Valves.pdf
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- Attached to
- West Pump Station Replacement Project
- Solicitation number
- Not on record
- Issued by
- Chester County, Pennsylvania
About this file
This is a technical specification document for resilient-seated gate valves prepared by Herbert, Rowland & Grubic, Inc., related to the West Pump Station Replacement Project being managed by Northwestern Chester County Municipal Authority in Pennsylvania. The specification outlines requirements for gate valves to be used in the pump station project, which includes construction of a new suction lift style pump station with building and site improvements, demolition of the existing below-grade package pump station, sanitary sewer piping with manholes, installation of new pumps and grinder pump with wet well, force main piping, and general site improvements. The project is divided into three separate bid contracts: WPS-1 for General Construction, WPS-2 for Electrical Construction, and WPS-3 for Mechanical Construction, with all bids on a lump sum basis. Bids are due online by Wednesday, May 20, 2026 at 10:00 AM local time, at which point they will be publicly opened and read. Bidding documents are available through https://pennbid.bonfirehub.com/, where prospective bidders are urged to register as plan holders and monitor for periodic updates, addenda, and other relevant information.
The specification requires resilient-seated gate valves from manufacturers including Clow, McWane, Mueller, US Pipe, or equal, rated for wastewater service with mechanical joint end connections, minimum working pressure of 250 psig at 70 degrees Fahrenheit, and maximum process fluid temperature of 100 degrees Fahrenheit. Valve materials must include ASTM A126 cast iron or ASTM A536 ductile iron bodies with fusion bonded epoxy coating and lining, resilient ASTM A126 cast iron wedges fully encapsulated with molded rubber, and ASTM B584 bronze stems, stem nuts, glands, and bushings. The specification requires compliance with multiple industry standards including AWWA C509 for resilient-seated gate valves for water supply service and testing protocols, ASME standards for pipe flanges and pipe threads, and MSS standards for gray iron gate valves. Non-rising stems with square nuts for handwheel operation in curb boxes are required, along with gear actuators for manual valves compliant with AWWA C509.
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Text version
40 05 61 – GATE VALVES
Herbert, Rowland & Grubic, Inc. 40 05 61 - 1 000483.0450
SECTION 40 05 61 – GATE VALVES
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Resilient-seated gate valves.
B. Related Requirements:
1. Section 40 05 51 – Common Requirements for Process Valves: Basic materials and methods related to valves commonly used for process systems.
1.2 REFERENCE STANDARDS
A. American Water Works Association:
1. AWWA C500 - Metal-Seated Gate Valves for Water Supply Service.
2. AWWA C509 - Resilient-Seated Gate Valves for Water Supply Service.
B. ASME International:
1. ASME B16.1 - Gray Iron Pipe Flanges and Flanged Fittings: Classes 25, 125, and
250.
2. ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24
Metric/Inch Standard.
3. ASME B16.42 - Ductile Iron Pipe Flanges and Flanged Fittings: Classes 150 and
300.
4. ASME B1.20.1 - Pipe Threads, General Purpose, Inch.
5. ASME B1.20.2 - Pipe Threads, 60 deg. General Purpose (Metric).
C. ASTM International:
1. ASTM A126 - Standard Specification for Gray Iron Castings for Valves, Flanges, and
Pipe Fittings.
2. ASTM B62 - Standard Specification for Composition Bronze or Ounce Metal
Castings.
3. ASTM B584 - Standard Specification for Copper Alloy Sand Castings for General
Applications.
4. ASTM D1784 - Standard Specification for Rigid Poly(Vinyl Chloride) (PVC)
Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds.
D. Manufacturers Standardization Society of the Valve and Fittings Industry:
1. MSS SP-70 - Gray Iron Gate Valves, Flanged and Threaded Ends.
2. MSS SP-80 - Bronze Gate, Globe, Angle and Check Valves.
PART 2 - PRODUCTS
2.1 RESILIENT-SEATED GATE VALVES
A. Manufacturers:
40 05 61 – GATE VALVES
Herbert, Rowland & Grubic, Inc. 40 05 61 - 2 000483.0450
1. Clow, McWane, Mueller, US Pipe or equal (Must be rated for wastewater service)
2. Substitutions: As specified in Section 01 61 00 – Product Requirements.
B. Description:
1. As specified in Section 40 05 51 – Common Requirements for Process Valves.
2. Comply with AWWA C5.
3. Minimum Working Pressure: 250 psig at 70 deg. F.
4. Maximum Process Fluid Temperature: 100 deg. F.
5. End Connections: Mechanical joint
6. Gear Actuators for Manual Valves: Comply with AWWA C509.
C. Operation:
1. As specified in Section 40 05 51 – Common Requirements for Process Valves.
2. Stem: Non-rising.
3. Square Nut for Handwheel operation in a curb box.
D. Materials:
1. Wedge: Resilient ASTM A126, cast iron, fully encapsulated with molded rubber
2. Body and Disc: ASTM A126, cast iron or ASTM A536, ductile iron with fusion bonded epoxy coating and lining.
3. Stem, Stem Nuts, Glands, and Bushings: ASTM B584, bronze.
4. Connecting Hardware: Type 316 stainless steel.
2.2 SOURCE QUALITY CONTROL
A. Section 01 40 00 – Quality Requirements: Requirements for testing, inspection, and analysis.
B. As specified in Section 40 05 51 – Common Requirements for Process Valves.
C. Testing: Test gate valves according to AWWA C509.
PART 3 - EXECUTION
3.1 INSTALLATION
A. According to AWWA C509.
END OF SECTION 40 05 61
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