Weeks

Home Hardware

Every year, thousands of people suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers. Additional untold numbers become ill due to water-borne bacteria, such as Legionella. Watts Thermostatic Mixing Valves maintain and limit mixed hot water to a desired, selectable temperature, helping to minimize thermal shock.

• This full flow valves is designed to maintain and limit the hot water to a temperature chosen by the installer
• Ideal for use in domestic water systems at the hot water source, such as boiler, water heater, tankless heater or storage tank
• Superior flow characteristics and exacting temperature control of the L1170 also make it ideal for radiant heat systems, commercial and industrial applications
• Specifically engineered for mixing hot and cold water on hot water supply systems
• Can be used for a variety of applications to reduce the temperature of the the hot water supply to the system
• Double-throttle design which combines the control of the hot and cold water to provide a sensitive response to changes in water temperature passing through the mixing chamber
• An added feature incorporates check valves in both the hot and cold water inlets to protect against cross flow
• Minimum flow requirements to maintain set temperature
• Valve size: 3/4" with solder connections

FEATURES:

• ASSE standard 1017 listed
• Integral check valves
• Proportional flow design - controls both hot and cold supply to the mixed water outlet
• Superior flow characteristics: - Low pressure drop - Accurate temperature control
• Easy installation - union solder
• Heavy duty rugged construction
• Made from brass castings
• Repairable - uses replaceable elements
• Energy saving design by extending the amount of hot water available
• Solid wax hydraulic principle thermostat assures dependable mixing of hot and cold water

PRESSURE/TEMPERATURE:

• Minimum pressure: 30 psi
• Recommended inlet temperatures: Hot inlet: 120 - 200 degrees F (48.9 - 93 degrees C) Cold inlet: 40 - 85 degrees F (5 - 9 degrees C)
• Minimum differenetial temperature: 15 degrees F (-9 degrees C)
• Maximum temperature: 200 degrees F (93 degrees C)
• Maximum pressure: 150 psi
• Temperature out field range: 80 - 120 degrees F (27 - 49 degrees C), adjustable, accurate within plus or minus 3 degrees F (1.5 degrees C)

MATERIALS:

• Body: 3/4" - 1" (20-25mm) size - brass
• Disc: stainless steel
• Thermostat assembly: copper
• O-rings: Buna-N; EPDM
• Pistons: Udel - P1700
• Springs: stainless steel