Views: 0 Author: J-VALVES Publish Time: 2025-03-04 Origin: Site
GB/T 12232 is a Chinese national standard that specifies the requirements for the design, manufacturing, testing, and marking of gate valves, including wedge gate valves. This standard ensures that valves meet high-quality and safety standards, providing reliable performance under various operating conditions. Compliance with GB/T 12232 guarantees that wedge gate valves are suitable for a wide range of industrial applications.
Key Requirements of GB/T 12232
• Design and Construction: The standard outlines the materials, dimensions, and construction methods to ensure valves can withstand specified pressures and temperatures.
• Pressure and Temperature Ratings: Valves must meet specified pressure and temperature ratings to ensure safe operation under different conditions.
• Testing and Inspection: Rigorous testing procedures, including hydrostatic and pneumatic tests, are required to verify the valve's integrity and performance.
• Marking and Documentation: Valves must be clearly marked with essential information, such as size, pressure rating, and material, and must be accompanied by detailed documentation.
Design Features of Wedge Gate Valves
Wedge gate valves are designed to provide a tight seal, ensuring reliable shut-off in fluid control systems. The wedge-shaped gate, which moves vertically to control flow, offers excellent sealing performance, making it ideal for applications requiring precise flow control and leak prevention.
These valves are constructed from high-quality materials such as carbon steel, stainless steel, and alloy steel, ensuring durability and resistance to corrosion. The robust design of wedge gate valves allows them to withstand high pressures and harsh operating conditions, providing long-term reliability.
Wedge gate valves feature precision-machined metal seats and high-quality seal materials, such as PTFE (Teflon) or other fluoropolymers, to ensure minimal leakage and long-term durability. The tight seal prevents fluid flow when the valve is closed, ensuring safe and efficient operation.
Wedge gate valves offer various end connections to suit different pipeline systems:
• Flanged Ends: Suitable for high-pressure and high-temperature applications, providing a secure and reliable connection.
• Threaded Ends: Ideal for smaller diameter pipelines and lower-pressure applications, offering easy installation and maintenance.
• Welded Ends: For permanent connections in high-pressure systems, ensuring leak-tight performance.
