Thermostatic Mixing Valves Reliable, ASSE-listed valves from a recognized leader in flow-control products Watts.
The Trusted Choice for Thermostatic Mixing Valves Watts provides a complete thermostatic mixing valve (TMV) line.
Mixing Valve Valve Overview Overview Addressing The Dangers of Hot Water Every year, thousands of people suffer injury or become ill as the result of water stored or used at inappropriate temperatures, leading to the potential for: • Serious thermal shock and scalding injuries suffered in bathtubs, sinks, and showers • Illness caused by water-borne bacteria such as Legionella Thermal Shock • One source of injuries in the shower is slips and falls in reaction to a sudden increase or decrease in water temper
Mixing Valve Overview Advantages of Watts Thermostatic Mixing Valves Since 1874 Watts has set the standard for valve technology.
How Watts Mixing Valves Work • Once tempered water is in use, a thermostat in the mixing chamber of the valve senses the outlet temperature and automatically positions a seat assembly, which controls the flow of hot and cold water supplied to the mixing chamber. • If the mixed outlet temperature increases, the thermostat will expand, moving the seat assembly to allow the cold water inlet port to open more fully and at the same time restrict the hot water inlet port.
At the Fixture • Heat loss in the system piping can result in varying temperatures of the hot and cold water supplied to fixtures. The use of thermostatic mixing valves helps ensure the selected mixed-water temperature at the point of delivery to the fixture. In Supply Systems • The water temperature discharged directly from a water heater can vary by ±10°F or more.
Solutions Point-of-Source Solutions For use at the source of hot water in commercial and institutional settings, Watts mixing valves provide reliable temperature control of domestic and hydronic hot water distribution systems. In this way, they extend the capacity of water heater storage tanks and tankless water heaters.
Point-of-Use Series 1070, P1070, G1070 and GP1070 LavSafe® Thermostatic Faucets • Sizes: 3/8" (10mm) • Eliminates installation of under-the-counter thermostatic valve • Watts' Advanced Thermal Actuator quickly compensates for pressure and temperature fluctuations • Mixes hot and cold water to deliver tempered water within specified range • Heavy duty Lead Free4 brass body for durability and to comply with Lead Free4 installation requirements • Copper supplies feature integrated check valves • Self-contained
Point-of-Source Series LF1170 and LFL1170 Thermostatic Mixing Valves • Sizes: 1/2" - 1" (15 – 25mm) • Solid wax hydraulic principle thermostat ensures dependable mixing of hot and cold water • Thermostat controls both hot and cold water • Models available with solder, thread, PEX, Quick-Connect or CPVC end connections • Integral filter washers and check valves • Adjustment cap with locking feature • CSA B125 Certified • ASSE 1017 listed5 and IAPMO UPC LF1170-M2 Series LFN170 Hot Water Master Mixing Valves
ASSE Standards A Comparison of ASSE 1069, 1070 and 1071 with revised 1016 and 1017 standards Standard ASSE 1017 - 2009 ASSE 1069 - 2005 ASSE 1070 - 2004 Watts Applicable Products LFL1170, LF1170, LFMMV, LFN170 LFMMV LFMMV, LFUSG-B, LavSafe faucets Title Temperature Activated Mixing Valves for hot water distribution systems Automatic Temperature Control Mixing Valves Water Temperature Limiting Devices Category Tempered water distribution Point-of-use distribution adjustment by installer Point-
ASSE 1016 - 2011 ASSE 1062 - 2006 ASSE 1071 - 2012 For applicable products, see Powers, A Watts Water Technologies Company at PowersControls.
Watts Family of Brands Watts designs, manufactures, and sells an extensive line of flow control, water safety, water filtration & treatment, drainage, and PEX plumbing products. The Watts family of companies provides a single source for solutions used to safely convey, conserve, and manage water. Making Watts your single source for plumbing-related solutions will streamline your operations, save you money, and reduce the variety of repair parts needed for maintenance.
