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TWBS.SHE Thermostatic Mixing Valve
Brand: Haws CorporationModel TWBS.SHE, 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 series of cold water by-pass valves open in the event of hot water pressure loss. (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.)
Listings: CSA certified per ASSE 1071, ANSI Z358.1, applicable sections of CSA B125.3, NSF/ANSI 372, NSF/ANSI 61-section 8, California Health and Safety Code 116875 (AB 1953).
Prop 65 Warning. For California Residents Warning: This product contains a chemical known to the State of California to cause cancer and/or birth defects or other reproductive harm.
Features- A flow rate of 1 to 74 gpm (280 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 (68% of rated tepid flow rate)
- Low-lead brass valve design with internal check stops
- Over-sized valve seats resist failures caused by foreign matter
- A new and efficient shuttle design eliminates valve binding
- A custom funnel design improves temperature control at low flow rates
- Outlet temperature is factory set to 85° F (29° C)
- Tempered water: High temperature limit is factory set to 87° F (30° C)
- Cold water by-pass valves are closed during normal operation, regardless of flow rate
Specifications
Brand
Flow Rate
- Maximum: 74 GPM 280 LPM
- Minimum: 1 GPM 4 LPM
Hot Inlet Temperature
- Maximum: 180° F 82° C
- Minimum: 120° F 49° C
Recommended Hot Inlet Temperature
- Maximum: 140° F 60° C
Cold Inlet Temperature
- Maximum: 70° F 21° C
- Minimum: 40° F 4° C
Adjustable Outlet Temperature Range
- Maximum: 85° F 29° C
- Minimum: 60° F 16° C
Operating Pressure
- 125 psi 8.6 BAR
Factory Temperature Set Point
- 85° F 29° C
Cold Water Bypass
- 50 GPM 189 LPM @ 30 psid