The HAT/SP scald protection valve should be installed at the highest point on an emergency safety station to protect personnel from scalding hot temperatures being released from safety shower and face or eyewash stations by automatically bleed off overtemperature water.
The thermal actuator at the heart of the valve will continuously sense either the ambient or fluid temperature, depending on installation orientation, and will modulate the valve open to establish flow if the temperature is above the valve’s set-point. Cooler water from the supply will backfill the line and cause the valve to modulate closed once the water temperature falls to 10˚F below the open set-point.
To learn more about our HAT/SP valve and to see available sizes and temperatures take a look at our HAT/SP Product Sheet.
For HAT/SP valve installation, take a look at our HAT/SP Installation and Maintenance Instructions.
To see the differences between ambient sensing and fluid sensing, check out our Ambient Sensing vs. Fluid Sensing Quick Sheet.
To see our complete line of temperature control solutions for safety showers and face or eyewash stations check out our Thermostatic Temperature Control For Emergency Equipment Brochure.