What is UL 336 ?

UL 336: The Safety Standard for Metallic-Rimmed Plug Valves

When it comes to the safety of our valves, it's essential to have clear and reliable standards to follow. One such standard is UL 336, a technical specification for safety requirements and test methods of metallic-rimmed plug valves. Developed and maintained by Underwriters Laboratories (UL), this standard is designed to ensure the safe operation and reliable performance of these valves in various applications.

UL 336 covers a wide range of aspects related to metallic-rimmed plug valves, including construction materials, design considerations, performance testing, and marking requirements. By adhering to the guidelines laid out in this standard, manufacturers can ensure that their products are proven safe and reliable for use in different industries.

The primary purpose of UL 336 is to establish minimum safety requirements and test methods for metallic-rimmed plug valves, specifically to prevent accidents and ensure user safety. The standard covers different types of valves, including those with manually operated ON/OFF controls or pressure relief devices, and evaluates the construction, performance, and reliability of these valves.

UL 336 takes into account various factors such as pressure resistance, leakage prevention, flame resistance, corrosion resistance, and impact resistance. By complying with UL 336, manufacturers can ensure that their valves meet industry safety standards and provide peace of mind to end users.

In conclusion, UL 336 is an essential standard for ensuring the safety of metallic-rimmed plug valves. By following this standard, manufacturers can ensure that their products are safe, reliable, and meet the necessary requirements for various applications.