Valves and Hydrants

Valves and Hydrants

AWWA valve and hydrant standards cover the C500 series, governing the manufacture, testing, and specifications for fire hydrants, gate valves, butterfly valves, and other types of valves. These are necessary to ensure compatibility with other systems of controlling water distribution and also cover topics for releases and miscellaneous gates.

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AWWA C500-2019

Metal-Seated Gate Valves for Water Supply Service

This standard describes iron-body, brass-mounted, nonrising-stem (NRS) gate valves, including tapping gate valves, 3-in.

AWWA C502-2024

Dry-Barrel Fire Hydrants

The purpose of this standard is to provide the minimum requirements for dry-barrel fire hydrants for fire-protection service, including materials, general design, and testing.

AWWA C503-2021

Wet-Barrel Fire Hydrants

The purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for wet-barrel fire hydrants for fire-protection service, including materials, design, inspection, testing, marking, and shipping requirements.

AWWA C504-2023

Rubber-Seated Butterfly Valves

The purpose of this standard is to provide the minimum requirements for rubber-seated butterfly valves suitable for raw water, potable water, wastewater, and reclaimed water service.

AWWA C507-2023

AWWA C507-23 Ball Valves, 4 In. Through 60 In. (100 mm Through 1,500 mm)

The purpose of this standard is to provide the minimum requirements for 4 in. through 60 in. (100 mm through 1,500 mm) resilient and metal seated ball valves for water, wastewater, and reclaimed water supply service, including material, design, inspection, testing, marking, handling, and packaging for shipment.

AWWA C508-2025

Swing-Check Valves for Waterworks Service, 2 In. Through 48 In. (50 mm Through 1,200 mm) NPS

The purpose of this standard is to provide the minimum requirements for swing-check valves for waterworks service, 2-in. through 48-in. (50-mm through 1,200-mm) NPS, including materials and testing.

AWWA C509-2023

Resilient-Seated Gate Valves for Water Supply Service

The purpose of this standard is to provide the minimum requirements for resilient-seated gate valves for water supply service, including application, materials, design, testing, inspection, rejection, marking, and shipping.

AWWA C510-17 (R2021)

Double Check Valve Backflow Prevention Assembly

The purpose of this standard is to provide the minimum requirements for double check-valve backflow prevention assemblies for potable water applications, including materials, general and detailed design, workmanship, and shipping and delivery.

AWWA C511-17 (R2021)

Reduced-Pressure Principle Backflow Prevention Assembly

The purpose of this standard is to provide the minimum requirements for reduced-pressure principle backflow prevention assemblies for potable water applications, including materials, general and detailed design, workmanship, and shipping and delivery.

AWWA C512-2015

Air Release, Air/Vacuum, and Combination Air Valves for Water and Wastewater Service

This standard describes 1/2-in. (13mm) through 6-in. (150mm) air-release valves and 1/2-in. (13-mm) through 20-in. (500-mm) air/vacuum and combination air valves having gray cast-iron or ductile-iron bodies and covers.

AWWA C514-2020

Air Valve and Vent Inflow Preventer Assemblies for Potable Water Distribution System and Storage Facilities

This standard describes 1-in. (25-mm) through 12-in. (300-mm) air valve and vent inflow preventer assemblies designed for use on the outlet of potable water distribution system air valves furnished in accordance with ANSI/AWWA C512 or storage facility vent pipes. The assemblies shall have a minimum design pressure of 25 psig (172.4 kPa [gauge]) and prevent the entry of contaminated water between 0 and 57.7 ft (17.6 m) of submergence at liquid temperatures ranging from 32°F (0°C) to a maximum of 125°F (52°C).

AWWA C515-2020

Reduced-Wall, Resilient-Seated Gate Valves for Water Supply Service

This standard covers reduced wall, resilient-seated gate valves with nonrising stems (NRS) and outside screw-and-yoke (OS&Y) rising stems, including tapping gate valves, for water supply service having a temperature range of 33 degrees to 125 degrees F (0.6º to 52ºC).

AWWA C516-2021

Large-Diameter Rubber-Seated Butterfly Valves, Sizes 78 In. (2,000 mm) and Larger

This standard establishes minimum requirements for rubber-seated butterfly valve assemblies that are 78 in. (2,000 mm) and larger in diameter with flanged ends suitable for fresh and reclaimed water having a pH range from 6 to 12 and a temperature range from 33 to 125°F (0.6 to 52°C), and suitable for a maximum steady-state fluid working pressure of 250 psig (1,724 kPa [gauge]), a maximum steady-state differential pressure of 250 psi (1,724 kPa), and a maximum full-open fluid velocity of 16 ft/s (4.9 m/s) based on nominal valve size in classes as defined in Sec. 1.1.1 and Sec. 1.1.2.

AWWA C517-16 (R2021)

Resilient-Seated Cast-Iron Eccentric Plug Valves

The purpose of this standard is to provide minimum requirements for resilient-seated cast-iron eccentric plug valves, suitable for water, wastewater, and reclaimed water service, including materials, application, inspection, handling, and shipping.

AWWA C518-2024

Double-Disc, Swing-Check Valves for Waterworks Service, 2 In. Through 48 In. (50 mm Through 1,200 mm) NPS

The purpose of this standard is to provide the minimum requirements for double-disc swing-check valves, suitable for waterworks service, 2-in. through 48-in. (50-mm through 1,200-mm) NPS, including materials and testing.

AWWA C519-2018

High-Performance Waterworks Butterfly Valvesù3 In. (75 mm) Through 60 In. (1,500 mm) (PDF)

This standard establishes minimum requirements for high-performance butterfly valves, 3 in. (75 mm) through 60 in. (1,500 mm) in diameter, with various body and end types, for raw, potable, and reclaimed water having a pH range from 6 to 12 and a temperature range from 33û125F (0.6û51.6C).   This standard covers three pressure ratings for high-performance butterfly valves suitable for maximum steady-state fluid working and differential pressures of 150 psig (1,034 kPa), 275 psig (1,896 kPa), and 500 psig (3,447 kPa), and maximum pipeline fluid velocity ranges of 16 ft/s (4.9 m/s), 24 ft/s (7.3 m/s), and 35 ft/s (10.7 m/s). The scope of carbon steel and stainless-steel valves includes all sizes, classes, and body styles. The scope of ductile-iron valves includes all sizes in wafer and lugged-wafer bodies. The flanged ductile-iron body scope includes 3 in. (75 mm) through 60 in. (1,500) for classes 150B, 150C, and 150D; 3 in. (75 mm) through 48 in. (1,200) for classes 275B, 275C, and 275D; and 3 in. (75 mm) through 24 in. (600 mm) for classes 500B, 500C, and 500D.   This standard can be referenced in purchase documents for ductile-iron, steel, and alloy high-performance butterfly valves, which are described by the scope as defined previously.

AWWA C520-2024

Knife Gate Valves, Sizes 2 In. (50 mm) Through 96 In. (2,400 mm)

The purpose of this standard is to provide minimum requirements for stainless steel and ductile-iron body knife gate valves with resilient and metal seats, including tapping knife gate valves, for use in water, wastewater, and reclaimed water systems, including materials, design, testing, rejection, marking, and shipping.

AWWA C521-2023

Plastic Ball Valves

The purpose of this standard is to define the minimum requirements for water supply service plastic ball valves, including materials, design, testing, and shipping.

AWWA C522-2022

Rotary Cone Valves, 6 In. Through 60 In. (150 mm Through 1,500 mm)

The purpose of this standard is to provide the minimum requirements for 6-in. through 60-in. (150-mm through 1,500-mm) rotary cone valves for water, wastewater, and reclaimed water supply service, including material, design, inspection, testing, marking, handling, and packaging for shipment.

AWWA C530-2022

Pilot-Operated Control Valves

The purpose of this standard is to define the minimum requirements for pilot-operated control valves, including sizing considerations, design verification, testing, delivery, handling, and storage.

AWWA C541-16 (R2021)

Hydraulic and Pneumatic Cylinder and Vane-Type Actuators for Valves and Slide Gates

This standard describes hydraulic and pneumatic linear and quarter-turn actuators for operation of valves and slide gates in utility systems.

AWWA C542-16 (R2021)

Electric Motor Actuators for Valves and Slide Gates

The purpose of this standard is to define the minimum requirements for electric motor actuators for valves and slide gates, including sizing considerations, design, testing, delivery, handling, and storage.

AWWA C550-2024

Protective Interior Coatings for Valves and Hydrants

The purpose of this standard is to provide the minimum requirements for protective interior coatings for valves and hydrants, including materials, coating process, testing, and repair.

AWWA C560-2021

Cast-Iron Slide Gates

The purpose of this standard is to provide the minimum requirements for cast-iron slide gates, including materials, general design, manufacture, testing, inspection, and shipment. The slide gates referenced in this standard are vertically-mounted, cast-iron slide gates with full aperture closing, designed for either seating head, or unseating head, or both, in ordinary water-supply and wastewater service. The cast-iron slide gates have machined metal faces and machined adjustable wedging devices.

AWWA C561-2021

Fabricated Stainless-Steel Slide Gates

The purpose of this standard is to provide the minimum requirements for fabricated stainless-steel slide gates, including materials, general design, manufacture, testing, inspection, and shipment.

AWWA C562-2021

Fabricated Aluminum Slide Gates

The purpose of this standard is to provide the minimum requirements for fabricated aluminum slide gates, including materials, general design, manufacture, testing, inspection, and shipment.

AWWA C563-2021

Fabricated Composite Slide Gates

The purpose of this standard is to provide the minimum requirements for fabricated composite slide gates, including materials, general design, manufacture, testing, inspection, and shipment.

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