Views: 0 Author: J-VALVES Publish Time: 2024-09-20 Origin: Site
ANSI/API 6D is an American standard that specifies the design, manufacturing, and testing requirements for pipeline valves, particularly ball valves. It is widely recognized and used in the oil and gas industry for its stringent requirements and high reliability.
GB/T 19672 is a Chinese national standard that specifies the design, manufacturing, and testing requirements for gate valves used in pipeline applications. It is widely used in domestic industrial applications within China.
| Feature | ANSI/API 6D Ball Valves | GB/T 19672 Gate Valves |
| Valve Type | Quarter-turn ball valve | Linear motion gate valve |
| Sealing | Bidirectional sealing with resilient seats | Unidirectional sealing with wedge gate |
| Operation | Quick 90° rotation for shutoff | Linear motion for shutoff |
| Materials | Stainless steel, alloy steels | Cast iron, carbon steel, stainless steel |
| Pressure and Temperature Ratings | High-pressure, wide temperature range | Wide pressure and temperature range |
Pipeline Valve Selection Guide
• High-Pressure Applications: ANSI/API 6D ball valves are ideal for high-pressure pipelines requiring quick shutoff.
• On-Off Control: GB/T 19672 gate valves are suitable for applications requiring tight shutoff and reliable on-off control.
• Corrosion Resistance: Choose materials like stainless steel or alloy steels for corrosive environments.
• Strength: Ensure the material can withstand the expected operating pressures and temperatures.
• Compliance: Ensure the valves meet the required standards (ANSI/API 6D or GB/T 19672) for your application.
• Rigorous Testing: Valves should undergo comprehensive testing to ensure reliability and safety.
