Description
HPG System is a high reliabiilty seal system used for both isolating and general sealing purposes, ESPecially suitable in High Pressure services. The HPG seal is a high reliability system used for both isolating and general sealing purposes, especially suitable in High Pressure services including ANSI 2500# and API 10,000# classes

Applications:
l Flange isolation in conjunction with cathodic protection.
l Isolation between dissimilar metals to prevent galvanic corrosion.
l Wellhead isolation from inter-connected flow lines.
l Mating mismatched ring-joint to raised-face flanges (HPG will seal in ring-joint, raised-face and flat face/slip-on flanges).
l Eliminate fluid trap corrosion between ring-joint (RTJ) flanges where high concentrations of CO2, H2S and other
aggressive hydrocarbon media are present.
l Eliminate turbulence and flow-induced erosion between ring-joint (RTJ) flanges.
l Protect against coating damage on coated flange faces.
l To seal between flanges subjected to vibration/cavitation.
Materials
Metallic Core
Themetallic core of gasket is made of stainless steel 316L.
Other metals,including Duplex and Inconel are available upon request.
Isolating Material
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) HighTemp. 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
Seal Material
PTFE (Spring-Energized)
Viton
Buna-Nitrile
Silicon
Isolating Sleeve
GRE
Mylar
NOMEX
Isolating Washers
GRE - G10/G11
HCS Washers
Steel Washer
ZPS
XPS
SS

Applications:
l Flange isolation in conjunction with cathodic protection.
l Isolation between dissimilar metals to prevent galvanic corrosion.
l Wellhead isolation from inter-connected flow lines.
l Mating mismatched ring-joint to raised-face flanges (HPG will seal in ring-joint, raised-face and flat face/slip-on flanges).
l Eliminate fluid trap corrosion between ring-joint (RTJ) flanges where high concentrations of CO2, H2S and other
aggressive hydrocarbon media are present.
l Eliminate turbulence and flow-induced erosion between ring-joint (RTJ) flanges.
l Protect against coating damage on coated flange faces.
l To seal between flanges subjected to vibration/cavitation.
Materials
Metallic Core
Themetallic core of gasket is made of stainless steel 316L.
Other metals,including Duplex and Inconel are available upon request.
Isolating Material
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) HighTemp. 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
Seal Material
PTFE (Spring-Energized)
Viton
Buna-Nitrile
Silicon
Isolating Sleeve
GRE
Mylar
NOMEX
Isolating Washers
GRE - G10/G11
HCS Washers
Steel Washer
ZPS
XPS
SS
