Pikotek VCS Gasket

The Pikotek VCS Gasket provides exceptional insulating and general sealing performance in aggressive material applications. The VCS gasket is suitable in all services up to and including ANSI 2500# and API 10,000# classes.

Due to its unique pressure activated sealing mechanism, the gasket requires far less bolt stress to seal than any other gasket. The Pikotek VCS Gasket inner diameter is exactly matched to the flange bore to eliminate turbulent flow and flange face erosion/corrosion. The seal elements are replaceable in the reusable gasket retainer.

DOWNLOAD BROCHURE

The Pikotek VCS 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 (VCS 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 and other aggressive hydrocarbon media are present
Eliminate turbulence and flow-induced erosion between ring-joint (RTJ) flanges.

The Pikotek VCS Gasket have the following Features and Benefits:

Extremely high reliability sealing and insulating for all critical services
Seals and insulates at all pressures up through ANSI 2500# and API 10,000¹#
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 needs³
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
Re-usable
Easy installation, make up and removal The rigid construction helps facilitate installation. Low required bolt loads. Less make-up force is required resulting in less flange and bolt stress. Self-aligning and centering; no special tools required.

Pikotek VCS Gaskets have the following specifications depending on the choice of platform gasket material:

G-10 NEMA grade G-10 Glass-Reinforced Epoxy (GRE) laminate material:

Compressive Strength: 66,000 PSI
Dielectric Strength: 800 VPM Max.
Continuous Operating Temp: (150 °C)
Minimum Continuous Operating Temp: (minus) (-128 °C)
Water Absorption: 0.10
Flexural Strength: LW 65,000 PSI / CW 52,000 PSI
Tensile Strength: LW 40,000 / CW 32,000 (ASTM D638)
Bond Strength: 2,300 lb.
Shear Strength: 21,500 PSI

G-11 NEMA LI1 grade G-11 Glass-Reinforced Epoxy (GRE) laminate material:

Compressive Strength: 50,000 PSI
Dielectric Strength: 550 VPM Max.
Continuous Operating Temp: (200 °C) Maximum
Continuous Operating Temp: (minus) (-45°C) Minimum
Moisture Absorption: 0.09
Flexural Strength: LW 57,000 PSI
Tensile Strength: LW 41,000 PSI
Bond Strength: 2,200 lb.
Shear Strength: 21,000 PSI