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 Orifice Chambers are used in combination with a Double Disc Flue Gas Valve to control the pressure drop from (regenerator) vessel pressure to atmospheric pressure. TapcoEnpro designs and manufactures the orifice chamber and double disc flue gas valve as a system.
The Orifice Chambers are typically designed to accommodate approximately 70% of the total pressure drop, based on the maximum design flow conditions.
TapcoEnpro has manufactured and shipped Orifice Chambers and Double Disc Flue Gas Valves in one piece.
TapcoEnpro Orifice Chambers are designed and manufactured in hot wall or cold wall construction. Manways, if required, are provided between the baffles to provide access for future inspection and maintenance.
Orifice Design Features: |
- Wide range of pressure environments
- Capable of accommodating approximately 70% of the total pressure
drop
- One piece construction, shipping, installation
- Cold and Hot wall construction (see below)
- Between baffle manways are available
Cold Wall Construction
The refractory is vibracasted to obtain a solid layer
of protection against erosion. The baffles are supported by internal
cones, which provide the transition from hot internal flue gas
to the cold wall shell.
Hot Wall Construction
The refractory is hand-packed in hexmesh to obtain a solid
layer of protection against erosion. The orifices are protected
from the catalyst erosion with TapcoEnpro T-382 or Stellite #6 hardfacing.
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