Products | Sealing materials | Metal and spiralwound gaskets
There are many static applications where the elasticity should be combined with resistance, over the limit of usual jointing.
Spiral wound gaskets have been developed to flanges where steam is involved, at very high temperatures, now used very successfully in petrochemical, nuclear, marine, hydraulic industry.
These gaskets are manufactured from V-shaped metal strip, spirally wound with an inlay of filler between each turn. The construction is capable of infinite variation as the number of metal plies in relation to filler plies can be increased or decreased.
The metal and the filler can be available in materials capable of withstanding temperatures from cryogenic range to at lest 1000 oC, pressures up to 350 bar, maintain a seal under conditions of thermal cycling or vibration, resist corrosion and leave flanges faces clean, offer good performance on difficult dry gas or high vacuum applications.
The gaskets are available in the following materials for metal strip: stainless steel, nickel, monel, inconel, titanium etc. and for filler: expanded graphite, PTFE, treaded fibre etc.