Model: HAT/SP for scald protection

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Scald Valve Body: Standard Construction
Open Temperature: 105ºF Temperature Set Point

The HAT/SP valve continually senses and automatically bleeds excessively hot water from safety shower and eyewash systems. Protection is provided with minimal water consumption. The unique plug and seat design offers the most reliable, tight shutoff available. All HAT/SP valves are factory tested and covered by a 36 month prorated warranty.

Model Operation

When the water temperature rises above safe limits and a danger of scalding exists, the thermal actuator modulates the valve open. A small sample of the water from the pipe system then flows past the sensor. If the water is above the acceptable range, the valve will continue to modulate open until the over-temperature water is eliminated. When the water temperature returns to the safe range, the valve then modulates closed minimizing water loss. The HAT/SP opens only when the water exceeds safe limits. The HAT/SP-105 is full open at 105°F (41°C) and remains open until water temperature is 95°F (35°C) or below. The HAT/SP-115 is full open at 115°F (46°C) and closed at 105°F (41°C) and below.

Design Features

• HAT/SP-105 meets OSHA temperature guidelines
• Stainless steel body, fittings, spring and plug
• Corrosion resistant - Long service life
• Narrow temperature band
• Compact, low mass - Fast response
• Ram-type plug for reliable tight shutoff
• Downstream actuator for greater sensitivity
• Sensitive to temperature only
• Unaffected by pressure variations
• Easy installation with pipe wrench
• Installs in any orientation
• Discharges the minimum amount of water required to keep water temperature within safe limits