Industrial Coil Casing Styles

The standard casing features a perimeter flange enclosing the finned area, with headers, connections, and return bends (if applicable) extending beyond the casework. This is the most economical casing option, suitable for applications with a low airside pressure drop across the fins where airtightness is not critical to system performance.

The baffled casing extends the casework over the headers to block airflow around them, preventing bypass of the airstream. It offers a cost-effective way to improve airflow efficiency while remaining ideal for systems where complete air sealing is not required.

The slide-out casing builds upon the baffled design and includes an airtight front cover that allows for easy installation and removal from an external housing. This configuration is particularly well-suited for unfiltered or dirty airstreams, or high-hygiene applictions that require frequent coil cleaning. A bolted front plate ensures a reliable air seal, preventing process air from leaking into the plant environment.

The airtight casing fully encloses both the headers and finned area, with only the connections extending beyond the case. It can be built as nominally airtight (riveted construction) or fully welded airtight. This design includes a bolting flange around the perimeter for secure mounting in duct systems, making it ideal for applications requiring complete air containment and minimal leakage.