The Crown Universal Slabs
may be fixed by means of metal bands, adhesive or a combination of
the two. Do not over-tension the metal bands so as to significantly
reduce the thickness of the insulation. On vertical surfaces,
circumferential support rings should be fitted and spaced apart at
distances to provide adequate support to the insulation. All joints
must be well butted together and vertical joints on adjacent
courses staggered. In multi-layer applications, all joints shall be
staggered. The insulation may be fixed to domed ends by impaling
over pins and secured with spring washers or forked pins welded to
the vessel.
Performance
Operating temperatures
Crown Universal Slab can
be used up to continuous operating temperatures of 230°C and down
to below ambient temperatures provided that a 100% vapour barrier
is maintained. The surface temperature of the facing should not
exceed 80°C.
Fire performance
The glass mineral wool of
Crown Universal Slab is classified as noncombustible to Euroclass
A1 to
BS
EN
ISO 13501-1 and to
BS 476: Part 4: 1970
(1984).
Thermal performance
Crown Universal Slabs have variable thermal conductivities
depending on temperature, as shown in the table.
Thermal conductivity