... exchange, pumps, valves, piping Thickness: 2.5mm-7.2mm Spiral Wound Gasket:SPIRATEC of TECSON are simi-metallic gaskets designed for ... Applications:Heat exchanges,pimps,valves,piping... Style RIR Inner Ring type Suitable for flanges. Applications:Heat exchanges,pumps,valves,piping ... ...Style SG Out Ring type.Suitable for use with flat face and raised face ...