Model: 3/4 IC/SP-105 Cartridge

Click here for ¾" Interchangeable (3/4 IC/SP-105 Cartridge) product sheet

The IC/SP valve continually senses water temperature and automatically bleeds excessively hot water from safety shower/eyewash systems. Protection is provided with minimal water consumption. The unique plug and seat design offers the most reliable, tight shutoff available. The easily replaceable pre-calibrated cartridge minimizes downtime during maintenance. All IC/SP valves are factory tested and covered by an 18 month prorated warranty.

Model Operation

Under normal operating conditions, water passes through a virtually unobstructed 1” or larger NPT tee, allowing this valve to be used in higher flow lines. The IC/SP will screw into any 3/4” NPT threaded opening with adequate internal clearance*. When the water temperature rises above safe limits, and a danger of scalding exists, the thermal actuator located in the fluid stream modulates the valve open. When the water temperature returns to the safe range, the valve then modulates closed, minimizing water loss. Due to the actuator's placement in the fluid stream, this valve is unaffected by ambient air temperature and is open at 105°F (41°C) and will remain open until water temperature is 95°F (35°C) or below.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

• Temperature meets OSHA guidelines
• Easily maintained
• Pre-calibrated replacement cartridges available
• Corrosion resistant – long service life
• Most clog-resistant design available
• Most narrow temperature band available
• Modulation throughout range to conserve water, yet will eliminate large quantities of over-temperature water when required
• Sensitive to fluid temperature only
• Unaffected by pressure variations
• Easily installed with pipe wrench