Valve Manufacturing Plant

Global standards for butterfly valves cover various aspects such as design, manufacturing, testing, and quality management. The main international standards include the following:

1. ISO (International Organization for Standardization) Standards

• ISO 5752: Defines face-to-face dimensions for valves, including butterfly valves, ensuring interchangeability across different brands.
• ISO 5211: Standardizes the actuator interface for valves, making butterfly valves compatible with various actuators (manual, electric, or pneumatic).
• ISO 10631: Provides general specifications for butterfly valves used in industrial applications, covering material selection, pressure ratings, and testing methods.

2. API (American Petroleum Institute) Standards

• API 609: The key standard for butterfly valves, covering design, manufacturing, testing, and quality requirements. It applies to both double and triple offset butterfly valves, widely used in the oil and gas industry.
• API 598: Establishes general inspection and testing requirements for valves, including pressure and seal testing for all valve types, butterfly valves included.

3. ASME (American Society of Mechanical Engineers) Standards

• ASME B16.34: Focuses on the design, materials, and pressure-temperature ratings for flanged butterfly valves.
• ASME B16.10: Provides standard face-to-face dimensions for various valves, including butterfly valves.
• ASME B16.5: Specifies flange sizes and types, applicable to flanged butterfly valves.

4. MSS (Manufacturers Standardization Society) Standards

• MSS SP-67: Provides general requirements for the design and manufacture of butterfly valves, including single-offset, double-offset, and triple-offset types.
• MSS SP-68: Primarily addresses the requirements for high-performance butterfly valves (such as double-offset or triple-offset), suitable for higher pressure and temperature conditions.

5. EN (European Standards)

• EN 593: A common standard for butterfly valves in the European market, covering design, manufacturing, and testing requirements for industrial butterfly valves.
• EN 1092: Specifies flange dimensions to ensure compatibility of butterfly valves with the European flange system.

6. JIS (Japanese Industrial Standards)

• JIS B2032: Specifies design, manufacturing, and testing requirements for butterfly valves, tailored for the Japanese market.
• JIS B2002: Establishes general pressure testing methods for valves, including sealing tests for butterfly valves.

7. Other Standards

• DIN (German Industrial Standards): Commonly used in the European market, standards such as DIN 3202 (face-to-face dimensions for valves) and DIN 2501 (flange connections) apply to butterfly valves.
• GB (Chinese National Standards): Common standards for butterfly valves in China include GB/T 12238 (general technical requirements for butterfly valves), GB/T 13927 (valve pressure testing), and GB/T 9113 (flange dimensions).

These standards ensure consistency in the design, performance, and compatibility of butterfly valves, making them suitable for a wide range of industries, including oil and gas, water treatment, and chemical processing.