Enfab, Inc. - Specialists in custom-built heat exchangers.
  Manufacturers of Killebrew Heat Exchangers    
        

Enfab, Inc.
6871 Franks Road
House Springs,
MO 63051
Tel: (636) 677-3211
Fax: (636) 376-4170


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Enfab Double Wall Heat Exchangers
You solution to avoid cross contamination of fluids in potable water installations.

Enfab double wall heat exchangers are ideal for potable water heating systems and other applications where cross contamination of fluids is a potential hazard. Many state and local agencies now require double wall exchangers in potable water installations. All of Enfab's double wall designs meet these specifications. In addition, all Enfab double-wall units conform to ASME Code requirements.

Enfab double-wall designs are available in both the U-series configuration and the A-series configuration. All dimensions are the same and replacement bundles will fit in existing units! Enfab can also build double-wall bundles to fit in other manufacturers' shells. Double-wall units offer comparable performance to existing copper tube exchangers.

How the Double Wall Exchanger Works
Double Wall Heat Exchanger Tube

Each tube is really a tube within a tube,
with dozens of small channels between them.

When either the inner or outer tube fails,
fluid is introduced into the space between the tubes.

The fluid flows to the leak detection chamber between the tubesheets and then runs out the leak indicator hole for easy detection before any cross contamination occurs.

The indicator hole is tapped with a 1/8" FPT for pressure testing of the bundle and easy pinpointing of the leak

Leak Detection Chamber

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6871 Franks Road House Springs, MO 63051
Tel: (636) 677-3211 Fax: (636) 376-4170
E-mail: enfab@accessus.net