The COREGUARD™ sealing/isolating gasket system is designed for critical/extreme applications.
Manufactured with a 316 stainless steel core retainer and laminated on both sides with high strength
laminates, the COREGUARD™ gasket is resistant to deforming under load and is used when electrical
isolation and corrosion control are required on pipes containing gas, natural gas, oil and other
hydrocarbon based medias up to 392ºF (200ºC).
Available for flat face, raised face and ring type
joint flanges from 1/2" to 48" (and corresponding API and DN diameters), ANSI 150-2500#, API 2-10K and PN420, the COREGUARD™ gasket is an engineered
solution for trouble-free operation that eliminates costly leaks and provides a solution for
Manufactured with an innovative industry first Press-n-Lock™ "Glue-Less Seal & Groove Technology"
that combines a press-in, pressure activated and spring energized seal with a unique groove
that retains the seal element without the use of glue on key contact surfaces!
The Press-n-Lock feature provides a higher confidence in sealing.
COREGUARD Gaskets are laser engraved with company name/logo, date of manufacture, and product description/part number.
Retainer Materials (G10S, G11S)
- 1/4" (0.250") total thickness
- Metal Core 0.120" thick = 316SS
- Laminate 0.065" per side
Gasket/Retainer Material Specifications
Dielectric Strength Volts/Mil Short Time
Compressive Strength (psi)
Water Absorption (%)
Flexural Strength (psi)
IZOD Impact Strength (Ft-lbs/Inch
Tensile Strength (psi)
Bond Strength (lb)
Temperature - Operating
Cryogenic -238°F (-150°C) to +302°F (+150°C)
-100°F (-73°C) to +392°F (+200°C)
NOTE: Operating Temperature for Gaskets and Flange Isolation Kits is based off the Gasket Retainer Temperature. Seal element temperature does not dictate the Min. and max. gasket operating temperature.
Seal Element Materials
- PTFE (Teflon®) Spring Energized. Spring is Stainless Steel
Seal Element Material Specifications
Temperature - Operating
Cryogenic to +525°F (+274°C)
-40°F (-40°C) to +250°F (+121°C)
-20°F (-29°C) to 392°F (+200°C)
Configurations for Gasket Type and Sleeve and Washer Sets
Fits over the bolt holes and extends to the O.D. of the flange to assist contractors as the bolt holes automatically center the gasket. Provides excellent protection against shorting out of the corrosion mitigation hardware.
Type "F" Gasket
"E" or "F" Type Gaskets
Single Washer Set
Double Washer Set
Suggested Sleeve/Washer Set
SD = Standard (G10 Sleeves, Steel Zp Washers and G10 Washers) - Double Washer Set