Page 32 - FlexitallicCatalog2010

The carrier ring concept consists of a solid
metal ring with a machined recess in each
face. Spiral wound gaskets are then located
in each of the machined recesses.
This type of arrangement has been
successfully used in sealing problematic
flanges and vessels in the nuclear, power
and petrochemical industries. The major
benefits of the carrier ring assembly are due
to the double spiral wound gasket being
present. This results in a very high recovery
gasket, ensuring that the bolt load is
maintained on the sealing elements when
arduous pressure/temperature cycling occurs
in service, thus maintaining a seal.
Carrier rings can be used on flat face,
raised face or tongue and groove type flange,
as well as non standard flange configurations.
They can be supplied for both small and
large diameter nominal bores up to class
2500 pressure rating. Carrier rings are
also tailor made to suit specific flange
arrangements and design conditions.
Typical Applications
The carrier ring concept has been extensively used
in the power generation industries, petrochemical
and nuclear industries. Typical applications are as
follows:
Heat Exchanger
Operating Pressure: 2900 psi
Temperature: 200ºC
Tube Sheet
H.P. Heaters, Fossil Fired Generators,
H.O.T. Construction, Steam Service
Operating Pressure: 700 psi
Temperature: 370ºC
Materials Utilized
316L/Flexicarb®
17-7PH/Flexicarb®
Inc X750 HT (Special high recovery material)
Catalytic Crackers
720ºC, Regenerators, 2980 mm OD
Hydrocarbon Service, Refineries
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CARRIER RING GASKETS