The ISOGUARD™ sealing/isolating gasket system is designed for general applications where electrical flange isolation and corrosion control are required on pipes containing water/wastewater, gas, natural gas, oil and other hydrocarbon based medias up to 302ºF (150ºC). Available for flat face, raised face and ring type joint flanges. The ISOGUARD sealing/isolating gasket system consists of a retainer with an incline-plane seal groove designed to optimize each seal's elastic memory, in conjunction with a proven rectangular sealing element ("Quad" ring). This design guarantees low bolt load requirements and high sealing reliability.
The DEFENDER™ sealing/isolating gasket system is designed for extreme, high reliability sealing and electrical isolation critical service applications. Manufactured with a 316 stainless steel core retainer and laminated on both sides with high strength laminates, the DEFENDER™ 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, the DEFENDER gasket is an engineered solution for trouble-free operation that eliminates costly leaks and provides a solution for fugitive emissions.
DEFENDER FS™ gaskets were engineered for Fire Safe, extreme, high reliability sealing and electrical isolation critical service applications. They are designed to withstand the rigorous API standard 6FB (Third Edition) test and therefore provides a solution for those who want to electrically isolate their flange while also requiring protection against the introduction of fire in and around the flange. The Defender FS Gasket is able to maintain its fire safe characteristics throughout the entirety of the test. Based on years of technological experience, the DEFENDER FS™ sealing/isolating gasket exceeds the pressure-containing capabilities in standard 6FB (Third Edition) as outlined by API. They are well suited for high reliability sealing and electrical isolation critical service applications and locations where highly volatile fluids are present.
Sleeve and washers sets, when combined with our sealing/isolation gaskets, complete a Flange Isolation Kit. For a successful flange isolation kit, it's critical to use the appropriate material for your application. Compressive strength, flexural strength, and cut through resistance are key material physical properties that should not be over looked.