Bellows Seal Valves for Critical and High-Safety Applications

Bellows seal valves are designed to provide superior sealing performance and prevent fugitive emissions in critical applications. These valves include gate valve and globe valve configurations, incorporating a bellows sealed design that ensures tight closure and long-lasting reliability. Known as bellows valves, they are ideal for systems that require precise control and enhanced safety under challenging operational conditions.

For applications with extremely strict sealing requirements—such as toxic, flammable, explosive, or highly corrosive media—bellows seals are employed. Both gate valves and globe valves can be designed with bellows sealing. Their design incorporates a dual sealing structure of bellows combined with packing to ensure zero leakage. The previously mentioned standards for gate and globe valves apply here, along with additional reference to bellows valve standards such as MSS SP-117, GEST 89/140, JB/T14315, and JB/T11150.