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Flo-Rite-Temp Model 535

Flo-Rite-Temp Model 535
Flo-Rite-Temp Model 535
Armstrong

Flo-Rite-Temp Model 535 Instantaneous Steam/Water Heater features a 5" diameter shell and a non-helical straight internal tube bundle with end cap.

Flo-Rite-Temp Model 535 has 35 GPM capacity with 15PSI steam at a 100°F temperature rise.

Flo-Rite-Temp Model 535 features 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 Model 535 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 Model 535 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 Model 535 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 Model 535 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.

 For submittal drawing refer to:
 Model 415  Single Wall  S5640
 Model 415DW  Double Wall  S5641
 Model 535  Single Wall  S5642
 Model 535DW  Double Wall  S5643
 Model 665  Single Wall  S5644
 Model 665DW  Double Wall  S5645
 Model 665SS  Stainless Steel  S5646
 Model 8120  Single Wall  S5647
 Model 8120DW  Double Wall  S5648
 Model 8120SS  Stainless Steel  S5649



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