How many gaskets should be added at the flange of the reactor inlet distributor?
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There is a distributor at the reactor inlet; are gaskets needed on both the upper and lower sides of the distributor?
Is the entrance lid big? Then there’s only one octagonal pad
If the cage is welded to the cover, use one gasket; if the cage is sandwiched between flanges and flange covers, use two gaskets.
Only one gasket can be used at the flange; no gasket is required at the connection between the distributor and the cover, or a non-metallic gasket can be used there