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Contact SupplierThe scallops assembly forms the outer screen component of a radial flow system. Its general shape extends parallel to the inner vessel wall using the wall as support. The inner surface delimits the outer side of the catalyst bed.
Purpose:
Distribute and collect the flow.
Retain catalyst and prevent catalyst leakage in radial flow device.
Reactor Internals - Johnson Wedge Wire Scallops
Wedge Wire Johnson screen scallops, utilized within reforming reactors, are a cornerstone for catalyst retention in radial flow reactors. With a fan-shaped cross-section, these scallops safeguard the reactor's inner wall, ensuring efficient catalyst distribution and protecting against deformation during temperature spikes and pressure variations.
Key Features:
1. Fan-Shaped Design: The Johnson screen scallops boast a distinctive fan-shaped structure, providing optimal catalyst distribution within the reactor.
2. Higher surface area than the traditional outer screen
3. Safety Mechanism: Serving a dual purpose, the scallop acts as a safety mechanism, preventing damage to the centerpiece by relieving stress from compressive catalyst loads.
The Get free Quote Scallops
OTHER INTERNALSYUANLV also supplies a variety of other screen and stainless steel vessel internals for petrochemical and refining applications include:
Screens for centerpieces, outer baskets, and regenerators;
Center pipe/Inner screen;
Filter elements




