• Mother Gasket Products

Spiral Wound Gaskets

Mother Gasket Products offers a range of Spiral Wound Gaskets (SWG), made in metal. These gaskets are available in sizes 12 to 3000 mm ID in round/oval/oblong/rectangular shapes, in ASME, ANSI, API, AWWA, PN, DIN, JIS and BS standards. Types of spiral wound gaskets: SS304; SS316; basic type; SWG with inner and/or outer ring; SWG for heat exchanger; special shape SWG; SWGs in customers’ designs, available in various sizes and colours and in different shapes. Characteristics: a spiral wound gasket able to compress and seal under various loads and provide sealing capabilities. The gasket generally includes a spiral wound portion and an outer guide ring to limit the compression of the gasket. The spiral winding is formed of interdisposed windings of a metal and an elastomer sealant. The metal winding has a non-planar cross-section to inhibit buckling under compression. The gasket is dimensioned such that the elastomer sealant winding has a width greater than the width of the metal winding which has a width greater than the thickness of the guide ring. In this manner, the sealant is compressed before compression of the metal winding which can be compressed until the outer guide ring is encountered.