Rapid Gas Decompression O ring

Piston seals are working to seal in fluid, thus preventing the flow of fluid across the piston, allowing pressure to build up on one side of the piston.

The BVR series is made of a canted level spring and a polymer jacket, which is mainly used as a stem seal.

The ID S seal is used for wellheads, downhole tools and surface pressure control equipment as a critial part.

JST FHP series is  made of a helical wound spring and a polymer jacket, which is mainly used for piston.

VT type V Packing is widely used for sealing pistons and rods with both single and double acting cylinders.

ID Face Seals for gate valves are spring-loaded, pressure-energized lip seal that improve gate and seat service life.

The V Stack seal assembly is comprising a top adapter or anti-extrusion ring (1), Vee Rings (2) and a bottom adapter (3). In the assembly the energizing axial force is transferred between the individual packing rings so that each ring is pressed into positive contact with the mating hardware surface. Special material grades are available for a large variety of working conditions.   The chevron seal stack material could be PEEK, modified PTFE and spring.

This is sealing product developed by JST to meet the increasingly demanding sealing needs of equipment manufacturers and users in semiconductor, petrochemical, mechanical seal, instrumentation, energy, biopharmaceutical, food and medical industries.