Freeze Protection Valve

Freeze Protection valves are ideal for protection of piping, valves, fittings, pumps, condensate systems, safety showers, fire lines, spray nozzles, freeze sensitive equipment, or as backup protection on traced systems/equipment. The "AA" model is recommended for draining condensate from compressed air systems.
 
 
     
 
     
 
Scald Protection

Solar radiation or overheating caused by steam or electric tracing can cause extremely high temperatures at the point of use, resulting in a safety showers, eyewash stations, and other locations exposed to the same source of overheating as the system, the HAT/SP will be heated just as the pipe system. The valve will open to establish flow until the overtemperature water is eliminated and it will then modulate closed.
 
 
     
 
     
 
In-Line Temperature Control

The HAT valve responds only to temperature. After condensate forms and cools to near the setpoint, the HAT valve modulates the flow to maintain a constant condensate discharge temperature. HAT valves are wide open at start-up for rapid venting and initial heat-up. HAT valves are self-draining after shutdown, to eliminate freeze damage. Typical setpoints include 105, 125, 180, 210, and 240oF (41, 52, 82, 99, 116oC)

 
 
     
 
     
 
Ambient/Surface Temperature Control

There are literally hundreds of applications for these compact, self-contained, automatic control valves. Ambient sensing valves can be used to turn on steam, air, gas, or liquids compatible with Teflon and stainless steel, inresponse to ambient temperature change. Applications include automation of steam trace lines, operation of pneumatically operated pumps for injection of antifreeze liquids, instrument enclosure control, etc. TV/SC-AR (reverse-acting) can be used to regulate the flow of glycol, water, or other cooling media or can automate cooling sprinklers, cooling baths, etc.
 
 
     
 
     
 
Tempering And Diverting

When the shower or eyewash is activated, the pressure drop on a diaphragm opens the steam control valve (V-3). Water and stream flow are established instantly heating the water and condensing the steam. A mixing valve (V-1) then blends the heated water with cold water to produce an output of 85oF water. Additional valves keep the system preheated, freeze protected and scald protected. Steam valve remains closed should water supply be interrupted.