FLEXSEAL® HH Gaskets
 For Boiler Handhole and Tubecap Assemblies
Flexseal® HH gaskets fit most standard boilers (specify maximum operating pressure when ordering) and are available from Atlantech in thicknesses of 0.125" (special), 0.175" (standard) and 0.250" (special-for pitted surfaces).
Style T by Flexitallic
These gaskets are used for boiler hand hole and tube cap assemblies. They are available in round, oval, obround, square, pear and diamond shapes. Please note Style T gaskets rely on internal pressure in the boiler to properly seat the gasket. This means, when a hydrostatic test is performed on the gasket, the pressure exerted against the plate will further compress the gasket-and it is necessary to tighten each nut to compensate for the additional compression of the gasket under load.
Ordering Information
When ordering, specify:
- Make and model of boiler and/or equipment if available (See Boiler Chart)
- Gasket style and configuration
- Dimensions of gasket (thickness, flange seating width, and shape)
- Maximum operating pressure and temperature
- Type of metal and filler materials
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