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HPG insulation System is a high reliability system used for both isolating and general sealing purposes, especially suitable in High Pressure services including ANSI 2500# and API 15,000# classes.
Flange isolation in conjunction with cathodic protection.
Isolation between dissimilar metals to prevent galvanic corrosion.
Wellhead isolation from inter-connected flow lines.
Mating mismatched ring-joint to raised-face flanges (HPG 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.
Protect against coating damage on coated flange faces.
To seal between flanges subjected to vibration/cavitation.
The metallic core of gasket is made of stainless steel 316L.
Other metals, including Duplex and Inconel are available upon request.
1) G-10 Glass-Reinforced Epoxy (GRE) laminate:
Compressive Strength: 65,000 PSI
Dielectric Strength: 750-800 VPM
Max. Continuous Operating Temp: 300 degrees F (150 degrees C)
Water Absorption: .05%
Flexural Strength: 65,000 PSI
Tensile Strength: 50,000 PSI
2) G-11 Glass-Reinforced Epoxy (GRE) High Temp. laminate material:
Compressive Strength: 50,000 PSI
Dielectric Strength: 500 VPM
Max. Continuous Operating Temp: 398 degrees F (200 degrees C)
Water Absorption: .085%
Flexural Strength: 57,700 PSI
Tensile Strength: 41,000 PSI
GRE - G10/G11
Stainless Steel Washers