Flo-Rite-Temp Model 665SS

Flo-Rite-Temp Model 665SS Instantaneous Steam/Water Heater features a 6″ diameter shell.

Flo-Rite-Temp Model 665SS has 37 GPM capacity with 15PSI steam at a 100°F temperature rise.

The Flo-Rite-Temp 665SS is a compact, steam to water, instantaneous
water heater with all wetted metal parts of type 316 stainless steel.
Because of its construction materials, this heater is well-suited for
heating most corrosive liquids, such as demineralized, deionized or
reverse osmosis water commonly used by manufacturers of electronic
equipment, pharmaceutical and food.

The Flo-Rite-Temp 665SS Instantaneous Steam/Water Heater has a unique
feed forward design which features a differential pressure diaphragm
actuated mixing unit integral to a shell and tube heat exchanger.

The Flo-Rite-Temp 665SS mixing unit manages the water flow through
the heat exchanger based upon downstream hot water demand and eliminates
the requirement for a modulating steam control valve.

Operating on constant low pressure (2-15PSI) steam, the Flo-Rite-Temp
665SS mixing unit supplies water to the heat exchanger where it is
overheated and then returned to the mixing unit for proportional
re-mixing with cold water to a pre-set outlet temperature.

Speed of Response

The differential pressure diaphragm within the mixing unit rapidly
responds to a change in system demand and significantly reduces the lag
times typically associated with feed back/modulating steam control valve
systems.

Failure Safe

The Flo-Rite-Temp 665SS mixing unit’s diaphragm actuated design can
be described as “failure safe” because in the event of a diaphragm
failure the mixing unit will fail with a cold bias and will not allow
hot water to exit the heat exchanger.

Temperature Control and User Safety

Capable of controlling outlet temperatures +/-4°F,
this principal of operation offers the additional relevant benefit of
reducing the waterborne bacterial content of the water during the
overheating process. In addition, with no water storage requirement,
Flo-Rite-Temp 665SS water heaters are a sensible selection as a
component of a broader system design initiative for Legionella risk
reduction.

Ease of Maintenance

Accessible “non helical” admiralty brass straight
tubes inside the carbon steel shell available mechanical cleaning and
visual inspection. Non modulating constant steam pressure ensures
condensate drainage and removes the potential for water hammer damage
and corrosion. There is no steam control valve to maintain and typically
no supplemental condensate return equipment required.

Ease of Installation

No storage tank, small footprint, access via a
standard doorway and pre-piped packaged solutions reduce installation
time, space and expenditure.