Roof Rim Seals
space between the rigid rim of a floating roof and the tank shell
must be effectively closed by a seal. Otherwise, the advantages
of the floating roof will be seriously compromised, making it vulnerable
to unnecessary evaporation losses and to fire.
Nayler Floating Roof sealing mechanisms close the rim space by covering
the band of exposed liquid. They also accommodate a variation in
the width of the rim space – from near the bottom of the tank where
the shell is round to the top where maximum distortion occurs. Many
years of experience in the construction of floating roofs, has shown
that occasional difficulty can be expected if a seal cannot accommodate
a change of plus-or-minus four or five inches (102 or 127mm) in
nominal rim-space width (a tank diametric variation of 8 to 10 inches
(203 or 254mm), depending upon type of seal.
Nayler Floating Roof sealing mechanisms, acknowledged by users to
be the finest in the industry, reflect constant development to meet
ever-increasing service requirements. New developments in materials,
coupled with experience that can come only with long service, have
enabled MNP engineers to make continuous improvements.