Haws TWBS.EWE Tempered Water Blending System For Eyewash Station
Haws TWBS.EWE Tempered Water Blending System For Eyewash Station
Product Code:
C1977868
Special Price $2,239.44 List Price $2,731.02

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Availabilty: Usually Ships in 5 Business Days
  • Ship Weight (lb): 12.0
  • Made In: N/A
  • Manufacturer: Haws
  • MFG Part #: TWBS.EWE
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Details

Model TWBS.EWE, lead-free Emergency Valve (patent pending) thermostatically mixes hot and cold water to provide a safe fluid supply for emergency 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.)
APPLICATION: Tempering valve to blend hot and cold water to deliver tepid water. Valve has flow capacity of 0.5 to 6 gallons per minute (GPM). Valve can be used with eyewash, eye/face wash, dual purpose eyewash/drench hose and drench hose units.

TEMPERATURE CONTROL: Valve has bimetallic thermostat that senses incoming water temperature and automatically blends water to 85F (29C). High temperature limit stop is set to 90F (32C). Valve has dial thermometer on outlet to monitor temperature of delivered water. Note: Valve may need to be adjusted when installed based on incoming water temperature. Refer to "Installation Instructions" for further information.

FAIL SAFE: In event of restriction or failure of hot water supply, internal bypass allows valve to deliver cold water to emergency unit. In bypass mode, valve will deliver 4 GPM of cold water at 30 PSI flow pressure. In event of loss of cold water supply, valve will close and not deliver water.

FLOW CAPACITY: Refer to chart below for flow capacity of valve at specified pressure drops:
System Pressure Drop (PSI) 5 10 15 20 25 30 35 40
Flow Rate (GPM) 2.5 4 5 6 7 8 8.5 9.5

System Pressure Drop (bar) .3 .7 1.0 1.4 1.7(more...)
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Specifications

More Information
Item Tempering Valves

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