Haws Thermostatic Mixing Valve - TWBS.HF

Haws Thermostatic Mixing Valve - TWBS.HF

Lead-free AXION Emergency Tempering Valve thermostatically mixes hot and cold water to provide a safe fluid supply for emergency shower and eyewash equipment, with a flow rate of 78 gpm (295 L).

Haws Model TWBS.HF (patent pending) is a thermostatic mixing valve that mixes hot and cold water to supply tempered water to emergency shower and eyewash fixtures requiring flow up to 78 gpm (295 L). Unit employs a paraffin filled thermostatic mixing element with triple redundant anti-scald protection. Lowest internal pressure drop where supply pressure is low, and a high Cold Water Bypass flow rate of 79 gpm (299 L). The improved low lead brass design with a one piece casting uses internal check stops, over-sized valve seats, a shuttle design that eliminates valve sticking, and a funnel design to improve temperature control with better mixing at low flow rates. Lime and calcium resistant components are used throughout. The outlet temperature factory setting is 85° F (26° C). Maximum operating pressure: 125 psi (8.62 Bar). Temperature adjustment range 60 - 90° F (16 - 35° C). Maximum inlet temperature: 180° F (82° C). Recommended inlet temperature: 140° F (60° C). Minimum inlet temperature: 120° F (49° C) Inlet 2" NPT(F). Outlet 2" NPT(F).

• A flow rate of 1 to 78 gpm (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° F (29° C)