VCFS Fire Safe Gasket

The VCFS Fire Safe Gasket adds fire service capability to the standard Pikotek VCS design using a secondary sealing element that is capable of maintaining a seal while subject to an 815°C fire. The VCFS fire resistant gasket combines proven sealing performance in aggressive environments with the capability to pass the API 6FB, 3rd Edition fire test.

Due to its unique pressure activated sealing mechanism, the heat resistant gasket requires far less bolt stress to seal than other gasket types. In addition, the engineered E-ring will serve as a secondary seal during normal operation and the primary sealing element during a fire.

DOWNLOAD BROCHURE

The VCFS Fire Safe Gasket has the following applications:

Flange insulation in conjunction with cathodic protection
Insulation between dissimilar metals to prevent galvanic corrosion
Wellhead isolation from inter-connected flow lines
Valve connections
Christmas Tree connections
Compressor connections
Tanks and heat exchangers with sacrificial anodes to increase anode life
Mating mismatched ring-joint to raised-face flanges (VCFS will seal in ring-joint, raised-face and flat face/slip-on flanges)
Eliminate fluid trap corrosion between ring-joint (RTJ) flanges where high concentrations of CO2, H2S, other aggressive hydrocarbon media are present.
Eliminate turbulence and flow-induced erosion between ring-joint (RTJ) flanges.

The VCFS Fire Safe Gasket has the following Features and Benefits:

Extremely high reliability sealing and insulating for all critical services
Withstands severe service conditions, including large bending moments, vibration, temperature, and pressure cycling¹
Tackles corrosive environments, including high concentrations of CO2, H2S, produced water, etc.
Outstanding isolating properties for cathodic protection, galvanic corrosion, and other pipe system isolation needs
Pressure activated for reliable sealing and eliminating costly leaks
Precisely sized to the bore to protect flange faces and prevents turbulent flow at flanged connections to mitigate media-induced corrosion and flow-induced erosion.
GPT can match the ID of any flange assembly which can greatly mitigate the effects of flow induced corrosion, erosion, and MIC common of other types of gaskets used in piped flange connections
Mitigates galvanic corrosion in dissimilar metal flanges
Insulating Kits (sleeves and washers) always include high strength double washers and full-length sleeves for maximum assurance against short circuits
High strength laminate material resists failure due to excess compression (i.e., over tightening bolts)
Spring energized PTFE seal provides radial load and encapsulation in the seal groove to eliminate cold flow
Available to match any flange specification (ANSI, API, BS, DIN, AS, others)
Can seal mismatched RTJ Flange with Raised Face Flanges

The VCFS Fire Safe Gasket has the following specifications:

Ring type joint (RTJ) flanges from 2”- 36” (50mm – 920mm)
Raised face flanges from 1”- 36” (25mm – 920mm)
Compressive Strength: 66,000 psi
Dielectric Strength: 800 VPM
Water Absorption: 0.10
Tensile Strength: LW 40,000 psi / CW 32,000 psi