Coil Case Types

Coil Case Types

All the case types listed below can be constructed with level tubes or with tubes pitched for condensate drainage.

Standard – This case has a perimeter flange enclosing the finned area, with headers, connections, and return bends (if applicable) extending beyond the casework. 
This is the lowest cost of the case options and is appropriate for applications with a low airside pressure drop across the fins, where absolute air-tightness of the process air stream is not essential.

Baffled – Like a standard case, but the casework extends over the headers to block the airflow around the headers.  It is a cost-effective way to prevent the air stream from traveling around the fin bundle.  Like the above standard case option, the baffled case is appropriate when keeping the process air stream air-tight is not critical.

Slide-out – Essentially a baffled case with an airtight front cover for easy installation and removal from an external housing.  The relative ease of installation and removal of a slide-out coil makes this case design a good choice for applications with unfiltered or dirty airstreams that require frequent cleaning of the fins.  The bolted front plate ensures that process air will not leak into the plant environment.

Airtight – Completely enclosed headers and finned area with only the connections extending beyond the case.  This case can be constructed either as nominally airtight (riveted construction) or welded airtight.  The airtight case design has a bolting flange around the perimeter of the case to enable the coil to be easily mounted in a duct.

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