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Titanium evaporators

Delta Hydronics LLC has officially entered the small ton titanium chiller and heat pump markets with its new HydroMarine offering with models from 1.5 to 20.0 tons.

June 7, 2019  By Hatchery International Staff

Delta Hydronics LLC has officially entered the small ton titanium chiller

At the heart of HydroMarine design is a commercial grade titanium tube evaporator. The evaporator is a two-pass counter flow design using a tightly rolled Gr-2, 0.035’’ wall titanium coil housed in a SC 80 PVC shell. This innovative evaporator shell design offers a tangential water inlet which accelerates water around the outside of coil on the down flow opposite to the refrigerant up-flow; water reverses direction in lower shell spiraling upward inside coil to complete the second pass. At higher water velocities this coil design provides a uniform flow distribution with continuous self-cleaning of coil.

HydroMarine integrates Carrier condensing R-410a units for temperature control applications down to 48°F and commercial Husseman-Krack R-407a refrigeration units for aquatic chilling temperatures to 35°F applications.

The HydroMarine 6” & 8” diameter evaporators accommodate flows at 120 and 200 gpm respectively with pressure drops less than 10 fthd.

On the service side of the equation, HydroMarine’s dual flanged evaporator allows for simple inspection of coil by loosening the union connections and unbolting top flange without the need of pulling the shell off. Cleaning is simplified using a hose, pressure washer or tube brush and flushing of bottom drain with coil inside shell.


The HydroMarine’s base construction utilizes non-corrosive FRP grating, 316SS evaporator mounting brackets and 316SS HW providing a durable and stable platform and easy rigging using a pallet jack. The finishing touch on this equipment package is the 0.50” closed cell insulation jacketed with a shiny 24-gauge 316SS wrap protecting insulation from normal wear.


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