Due to individual applications there are different versions and positions of installation:

 

1. Versions of casings (WH)


Version „no casing“ (NC)
The heat exchanger only consists of the entire tube bundle with headers and nozzles. This type is primarily used for insertion into dryers. .

Version „with casing“ (WC)
In comparison to the NC-type this one additionally consists of side walls and connection frames. This type is often used as an insertion bundle into dryers and ducts with induced air flow. Also, this type can be fitted with removable header covers for cleaning routines of the inner tube side. .

Version „airtight“ (AT)
In addition to the WC-version an external u-profile on the expansion side is welded on the side walls. This profile allows an expansion inside a closed casing. External air cannot flow into the casing as well as process air cannot get out. This type is the classic version for assembling between two ducts.

Version „insertion unit“
This version is especially built for an insertion into a machine or duct to ensure an easy disassembling for cleaning routines. .

2. Installation position:


vertical tubes, horizontal air flow (VH)
this type is the main position for steam powered heat exchangers, for insertion types and for heat exchangers with a tubes length of more than 3 m. Only this position allows an optimal drain of condensate using steam powered heat exchangers. In case of tube sided liquid applications a separate drain on the

horizontal tubes, horizontal air flow (HH)
This is the classical position for liquid powered heat exchangers. Drain and vent nozzles are not necessary.

horizontal tubes, vertical air flow (HV)
This position is the standard position for air-cooled plants. In case of condensation of vapour or steam the tubes shall have a little inclination to allow the condensate drain and to avoid bottling. The condensate nozzles have to be placed at the lowest point of the outlet header. For cooling of liquids inlet and outlet nozzles are in height offset position.

 

 

In case of operations with steam powered heat exchangers, special instructions for the installation positions have to be followed.