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The American Water Works Association (AWWA) defines globally recognized standards for valves used in municipal waterworks systems. These standards ensure long-term reliability, safety, and cost-efficiency across drinking water distribution, wastewater handling, and utility infrastructure.

VALVE TYPES COVERED BY AWWA STANDARDS

AWWA standards specify performance, design, and testing requirements for multiple valve types:

Gate Valves (AWWA C509, C515): Resilient-seated designs for potable water service.
Butterfly Valves (AWWA C504, C516): Compact and cost-efficient solutions for large-diameter pipelines.
Check Valves (AWWA C508): Prevent backflow in pump stations and distribution points.
Plug Valves (AWWA C517): Suitable for wastewater systems with solids present.
Ball Valves (AWWA C507): High-performance valves for high-pressure applications.

MATERIAL AND DESIGN REQUIREMENTS

AWWA standards emphasize durability and corrosion resistance through strict material and coating specifications. Common requirements include ductile iron bodies, stainless steel or bronze trim, resilient elastomer seats, and fusion-bonded epoxy coatings in accordance with AWWA C550.

TESTING AND ACCEPTANCE CRITERIA

Key testing and acceptance criteria include:

Hydrostatic Shell Test
Seat Leakage Test (zero visible leakage)
Torque Verification
Coating Inspection
Cycle Testing

PRACTICAL CONSIDERATIONS FOR WATERWORKS APPLICATIONS

Valves must operate reliably in buried service conditions with correct actuators, proper torque limits, and full traceability through serial numbers and compliance documentation.

CONCLUSION

AWWA valve standards provide the foundation for safe, efficient, and sustainable municipal water systems. Compliance ensures long-term performance, public health protection, and reduced life-cycle costs.