Composition
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GRE Retainer
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Gasket
Characteristics
Guardian Premium IS flange isolation kits do not use any metallic retainers, as GRE acts both as the retainer and the insulator.
The gasket can be used on RF, FF, and also RTJ flanges, replacing the inefficient phenolic Ring Joints.
Sealing is achieved either with PTFE or nitrile or fluorinated rubber.
The gasket groove is designed to prevent retainer breakage in case of overstress and to enhance the elasticity of the sealing element.
Guardian Premium IS is suitable for use up to 200°C, depending on the selected GRE, in ANSI 150 - 1500#, API 2 - 5K#, and PN 6 - 250# ratings.
