ASTM B62 Vs ASME B16.34: Bronze Butterfly Valve Design Standards Comparison

ASTM B62 Standard

Material Specifications

• Bronze Composition: ASTM B62 specifies the composition of bronze materials used in valve manufacturing. 

• Temperature Range: Suitable for temperatures ranging from -325°F to 450°F.

Design and Manufacturing

• Casting Quality: ASTM B62 emphasizes the control of casting quality, including temperature control during casting and proper mold release techniques. This ensures the structural integrity and durability of the valve.

• Size Specifications: The standard provides uniform size ranges to ensure compatibility with other pipeline components.

ASME B16.34 Standard

Material Specifications

• Material Flexibility: ASME B16.34 allows for a broader range of materials, including bronze, stainless steel, and other high-temperature alloys. This flexibility enables the selection of materials suitable for specific application requirements.

• Temperature and Pressure Ratings: ASME B16.34 covers a wide range of pressure and temperature ratings, making it suitable for various industrial applications, including high-pressure and high-temperature environments.

Design and Manufacturing

• Design Requirements: ASME B16.34 provides detailed design requirements, including face-to-face dimensions, wall thickness, and overall valve design. These requirements ensure compatibility and reliability in different piping systems.

• Manufacturing Process: The standard emphasizes the importance of proper manufacturing processes to ensure the quality and durability of the valve. This includes requirements for casting, machining, and assembly.

Comparative Analysis

Key Differences