Palmfox high-pressure insulation kit gasket material includes high-strength, glass-reinforced epoxy-laminated bonded to a stainless steel core. This maintains total electrical insulation between the flange faces while offering the strength of a conventional metallic gasket.

 

 

 

 

 

 

 

In order to break the potential leak path that is noticeable in glass laminate materials, seal grooves are machined through the laminate's insulating material and into the stainless steel core. This creates a solid foundation for the seal to sit into. Also, PTFE sealing elements are installed in the dovetail shape seal grooves to provide reliable sealing.

 

Materials

• Stainless Steel Core:

The standard stainless steel core is SS316L, special materials such as duplex steel, and Inconel stainless steel can be made according to your requirements.

• Glass Reinforced Epoxy:

The standard glass-reinforced epoxy material is G10, and G11 is available when the temperature requirement is higher.

Specification between G10 Bonded and G11 Bonded:

	G10 Bonded	G11 Bonded
Dielectric strength volts/mil	550	550
Compressive strength psi	65,000	50,000
Water absorption %	0.05	0.085
Flexural strength psi	65,000	60,000
Tensile strength psi	50,000	45,000
Operating Temp °F	-65 to +280	-50 to +349
Operating Temp °C	-54 to + 138	-45 to +176

• Seal

The standard sealing material is Spring Energized Teflon which is suitable for most working conditions. Meanwhile, other materials like VITON are also available

Temperatures of different sealing materials:

Temperature	Nitrile	Viton	Teflon
Operating Temp °F	-40 to +250	-20 to +350	-320 to +450
Operating Temp °C	-40 to +121	-29 to +177	-196 to +232

• Sleeves

ASTM	Test Method	Mylar	G10
D149	Dielectric Strength Volts/Mil Short Time	1,100	775
D570	Water Absorption (%)	0.8	0.05
D790	Flexural Strength (psi)	13,000	65,000
	Operating Temperature	-75 to +302°F (-59 to +150°C	Cryogenic to 302°F (150°C)

• Washers

ASTM	Test Method	G10	G11	G3	Phenolic	Steel (HC)
D149	Dielectric Strength Volts/Mil Short Time	750~800	520	500	500	750~800
D695	Compressive Strength (psi)	65,000	50,000	55,000	25,000	-
D570	Water Absorption (%)	0.05	0.1	0.1	1.6	-
	Operating Temperature	Cryogenic to 302oF(150oC)	-100 to +392oF (-73 to +200oC)	-100 to +392oF (-73 to +200oC)	-65 to +220oF (-54 to +104oC)	-100 to +392oF (-73 to +200oC)

 

Palmfox High-Pressure Insulation Gasket Features:

• provides insulation and seals up to API 15000 psi service pressure
• resists extreme service conditions, such as heavy bending moments, vibration, temperature changes, and pressure fluctuations
• designed to withstand harsh conditions, such as those with high CO2, H2S, produced water, etc.
• outstanding cathodic protection insulation properties
• pressure-activated seals offer high sealing confidence and stop costly leaks
• the gasket is sized to the bore to guard against media-induced corrosion and flow-induced erosion on the flange faces
• flanged connections are protected from turbulent flow
• reduces galvanic corrosion in flanges made of different metals
• fit any flange specification (ANSI, API, MSSP, BA, DIN, AS, etc.)
• can mate RTJs that are mismatched with raised-face flanges
• easy installation, make up, and removal