Insulation
sets are designed specifically to counter corrosion in pipe
systems that have flanges of different metals. The most
common problem areas are on valves.
A typical set consists of the following:
An
insulating gasket made from phenolic resin.
Gaskets
bonded either side of the insulating gasket.
High
tensile bolts or studs.
Insulating
sleeves in fiberglass or phenolic resin to fit over the
studs.
Insulating
washers made from phenolic resin.
Precision
flat steel washers 4-5mm thick.
In
areas of high lightening occurrence a spark gap is also
fitted.