STYLE LS & LSI LOW STRESS RANGE OF SPIRAL WOUND GASKETS
Tho LS gasket offers the same high integrity seal associated with the spiral wound gasket however the LS and LSI has been designed in such a way that compresion and sealing requirements are achieved under very low seating stresses. These gaskets are intended for use on class 150 and 300 applications where customers traditionally do not use spiral wound gaskets due to concerns about exceeding allowable design stresses.
Tho traditional spiral wound gasket has its steel windings protruding above the compression stop; this requires a significant loading stress to compress the gasket to its optimum operating thickness. The LS and LSI gaskets have only soft Flexicarb or PTFE filler protruding above metal windings and guide ring; therefore as the gasket is compressed, the Flexicarb, Thermiculite 836 or PRFE filler is readily compressed thus productin the sealing mechanism at an earlier stage as compated to the conventionally manufactured sprial wound gasket.