Semi-Metallic Construction: Composed of a V-shaped or W-shaped metal strip (typically SS304, SS316L) spirally wound together with a soft non-metallic filler material like Flexible Graphite, PTFE, or Mica.
Precision Engineering Standards: Manufactured in strict accordance with international standards, including ASME B16.20, DIN, JIS, and BS, ensuring seamless compatibility with global flange systems.
Structural Components: Available in multiple configurations: Basic Type (R), with Inner Ring (RI), with Outer Ring (CG), and with Inner & Outer Rings (CGI) for maximum blowout resistance.
Extreme Resilience: The V-shaped metal layers act like a spring, providing excellent recovery and maintaining a tight seal even under fluctuating pressure and temperature conditions.
Exceptional Pressure Handling
Capable of sealing pressures from vacuum up to 2500 class and beyond, making them the standard choice for high-pressure piping systems.
Self-Adjusting Sealing
The "spring-like" action automatically compensates for flange movement, thermal expansion, and bolt stress relaxation, reducing the need for frequent retightening.
Color-Coded Identification
Outer rings are painted according to industry color codes (e.g., Yellow for SS304, Green for SS316), allowing for quick and error-free identification on-site.
Wide Temperature Range
Reliable sealing performance from cryogenic temperatures up to 1000°C (depending on the metal and filler combination).
Oil & Gas Refineries: Used in high-pressure hydrocarbon processing, catalytic crackers, and distillation towers.
Power Generation: Critical for high-pressure steam lines, boiler feed water systems, and turbine housings.
Chemical Processing: Ideal for reactors, heat exchangers, and pipelines handling corrosive media or high-velocity fluids.
Marine & Offshore: Withstands the harsh, corrosive environments of offshore platforms and shipboard piping systems.
