Specifications:
Here are some key features and requirements of AWWA C515 resilient seat gate valves:
Valve Type: AWWA C515 covers resilient seat gate valves specifically. These valves are designed to control the flow of water by raising or lowering a gate inside the valve body. The "resilient seat" refers to the use of a rubber or elastomeric material on the valve seat, which provides a tight seal when the valve is closed.
Size Range: The standard specifies a size range for these valves, typically from 3 inches to 108 inches in diameter. The specific size range can vary depending on the manufacturer and the project requirements.
Pressure Rating: AWWA C515 valves are typically designed for different pressure classes to accommodate a range of system pressures. Common pressure classes include 150 psi (pounds per square inch), 200 psi, 250 psi, and 300 psi.
Materials:
Materials: The standard defines the materials used for various components of the valve, including the body, gate, stem, seat, and other internal parts. Typically, the body is made of ductile iron,while the gate is often made of cast iron or ductile iron.
Coatings: AWWA C515 valves may have external coatings to protect against corrosion, such as fusion-bonded epoxy (FBE) or other suitable coatings.
Characteristic:
End Connections: The standard specifies the types of end connections, which can include mechanical joint ends, flanged ends, or other appropriate connections for water distribution systems.
Operation: Resilient seat gate valves are typically operated by a handwheel, gearbox, or actuator, depending on the size and application. They can be operated manually or remotely.
Testing and Quality Control: AWWA C515 includes requirements for quality control, testing
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