Style R spiral wound gaskets embody all the exclusive features for keeping compression values in balance with bolting and providing adequate resilience to compensate for variable stresses encountered in service. Style R spiral wound gaskets are manufactured to a nominal thickness of 0.125″ (3.2mm). Optimum compression is in the range of 0.090″ to 0.100″ (2.3mm to 2.5mm) thick.
Special Style R spiral wound gaskets are adaptable to non-standard flanges and can be designed and manufactured according to specifications for high and low pressure applications and for severe corrosive conditions.
Basic construction type, inner & outer diameters are reinforced with several plies of metal without filler to give greater stability & better compression characteristics.
Style RIR spiral wound gaskets are designed to prevent accumulation of solids, reduce turbulent flow of process fluids and minimize erosion of flange faces. The inner ring provides a positive stop preventing the gasket from over compression and possible damages.
Style RIR spiral wound gaskets are manufactured to 0.125″ (3.2mm) thickness. The gasket features a solid metal inner ring nominally 0.090″ (2.3mm) thick, as an integrated part of its design.
Special styles are available in other thickness.
Solid inner metal ring acts as a compression stop and fills the annular space between flange bore and the inside diameter.