Haws TWBS.HF 2 x 2 in Emergency Tempering Thermostatic Mixing Valve

Model TWBS.HF, low-lead emergency valve (patent pending), thermostatically mixes hot and cold water to provide a safe fluid supply for emergency shower and eyewash equipment. The valve contains a secondary high temperature limit valve to provide additional protection to the user in the event of main tempering valve malfunction. Additionally, to ensure a fail-safe water supply for emergency shower and eyewash stations, a pressure sensing diverter valve is provided that sends a pressure signal to open the cold water by-pass valve in the event of hot water pressure loss, main valve thermostat malfunction, or clogged cold water check-stop. (No gauges supplied - ASSE 1071 standard recommends gauges be placed 5 to 8 feet (1.52 to 2.44 m) downstream for the most accurate temperature measurement).

• A flow rate of 1 to 78 gpm (3.8 to 295 L) for better temperature control across the operating range
• AXION's superior design and technology provide a complete safety solution for increased victim comfort
• Lowest internal pressure drop for this class of valve (advantage where supply pressure is low)
• Wax based thermostat technology for fast response time with proven highly reliable temperature control
• Highest cold water bypass flow rate in the industry (100% of rated tepid flow rate)
• Modular lead-free brass design with internal check stops
• Over-sized valve seats resist failures caused by foreign matter
• A new and efficient shuttle design eliminates valve sticking
• A custom funnel design improves temperature control at low flow rates
• Outlet temperature is factory set to 85 deg F (29 deg C)