ASME B16.34 vs API 600: Comparing Two Common Valve Standards

ASME B16.34 vs API 600: Key Differences Explained

When selecting valves for high-pressure applications, engineers often compare two commonly ASME B16.34 and API 600 standards. Both are critical in industrial settings, but they serve distinct purposes and have unique requirements.

Scope and Application

ASME B16.34 covers valve design, materials, and pressure-temperature ratings for flanged, threaded, and welding-end valves. It’s widely adopted for power generation and process industries. API 600, on the other hand, specifies requirements for bolted bonnet steel gate valves for petroleum and natural gas industries, emphasizing durability and performance in harsh environments.

Material and Testing Requirements

ASME B16.34 focuses on pressure integrity and design validation, while API 600 includes additional tests like shell and seal tests. API 600 valves often feature heavier construction and are tailored for continuous operation in oil and gas sectors.

Common Questions

Which standard is more rigorous? API 600 includes more stringent testing for leakage and endurance, making it ideal for critical applications. ASME B16.34 offers broader design flexibility.

Can valves comply with both? Yes, many manufacturers design valves meeting both standards to maximize compatibility and safety.

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