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Thermostatic Mixing Valves

Thermostatic Mixing Valves
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Thermostatic Mixing Valves

Product catalog summary
Overview of Thermostatic Mixing Valves (TMVs)
Watts provides a range of thermostatic mixing valves (TMVs) designed for precise water temperature control, suitable for residential, institutional, and commercial settings. These valves comply with ASSE standards (1017, 1069, 1070) to ensure safety and performance.
Applications
  • Residential: Homes, apartments, dormitories.
  • Institutional: Healthcare, military, universities, schools, correctional facilities.
  • Commercial: Businesses, hotels, office buildings.
Addressing Hot Water Dangers
TMVs prevent thermal shock and scalding injuries by maintaining consistent water temperatures and reducing the risk of Legionella bacteria growth.
Advantages of Watts TMVs
These valves offer precise temperature control, outperforming pressure balancing valves, and ensure safe water temperatures despite supply variations.
ASSE Standards
  • ASSE 1016: For individual fixtures with precise temperature regulation.
  • ASSE 1017: For valves at the hot water source, not for direct user delivery.
  • ASSE 1069: For preset temperature applications like gang showers.
  • ASSE 1070: Controls maximum water temperature to fixtures.
How Watts Mixing Valves Work
These valves use a thermostat to adjust hot and cold water flow, maintaining a preset temperature and automatically shutting off if supply fails.
Installation and Maintenance
Watts offers various fitting configurations for easy installation and servicing, including union fittings and Quick-Connect options.
Point-of-Source and Point-of-Use Solutions
Watts TMVs provide reliable temperature control at the source and tempered water delivery at the point of use.
Product Features
Features include advanced thermal actuators, integral checks to prevent cross-flow, and temperature locking mechanisms, available in various sizes and connection types.
Conclusion
Watts TMVs enhance safety and efficiency in water systems by providing reliable and precise temperature control across various applications.
Specifications and Standards Overview
The document compares ASSE standards 1017, 1069, 1070, 1016, 1062, and 1071, detailing specifications for different valve types, including temperature range, tolerance, and pressure change tests.
Testing Procedures
Includes procedures for temperature and pressure changes, flow tests, and life cycle expectations, ensuring valve performance and reliability.
Standards and Recommendations
Emphasizes adherence to ASSE standards for valve performance, ensuring safety and efficiency in plumbing systems.
Applications and Key Data
Valves are used in hot water distribution systems, showers, and emergency equipment. Tables compare performance criteria, aiding in valve selection based on specific needs.
Conclusion
The document serves as a guide for understanding ASSE standards and selecting appropriate temperature control valves, highlighting the importance of compliance for safety and performance.
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Catalog excerpts

Thermostatic Mixing Valves-1

Thermostatic Mixing Valves Reliable, ASSE-listed valves from a recognized leader in flow-control products

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Thermostatic Mixing Valves-2

The Trusted Choice for Thermostatic Mixing Valves Watts provides a complete thermostatic mixing valve (TMV) line. • eliable products for safe, accurate control of water temperature from point-of R source to point-of-use • roducts tested and listed to relevant ASSE standards (1017, 1069 & 1070) P • LavSafe® tempering faucet, the only ASSE 1070-listed faucet available in North America • ne-of-a kind products include LavSafe and USG-B under-sink guardian, which O reduce installation time by up to 50% • xtensive distribution network ensures product availability E • rovided by a stable, industry leader...

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Thermostatic Mixing Valves-3

Mixing Valve 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: • erious thermal shock and scalding injuries suffered in bathtubs, sinks, S and showers • Illness caused by water-borne bacteria such as Legionella Thermal Shock • ne source of injuries in the shower is slips and falls in reaction to a sudden O increase or decrease in water temperature, known as thermal shock. • f the supply of cold or hot water is lost, the water flow should be...

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Thermostatic Mixing Valves-4

Mixing Valve Overview Advantages of Watts Thermostatic Mixing Valves Since 1874 Watts has set the standard for valve technology. Watts thermostatic mixing valves: • Maintain and limit mixed hot water to a desired, selectable temperature • rovide a way to control outlet temperatures to help mitigate the risk posed by P unmonitored, untempered water • nable safe, accurate control of hot water from its source through to its final E use, regardless of how the supply temperatures or pressures vary over time • rovide more precise control than pressure balancing mixing valves, which do P not automatically...

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Thermostatic Mixing Valves-5

Mixing Valve Overview How Watts Mixing Valves Work • nce tempered water is in use, a thermostat in the mixing chamber of O 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. • f the mixed outlet temperature increases, the thermostat will expand, movI ing 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. • onversely, if the mixed outlet temperature decreases, the thermostat will C contract, moving the seat...

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Thermostatic Mixing Valves-6

At the Fixture • eat loss in the system piping can result in varying temperatures of the hot H 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 • he water temperature discharged directly from a water heater can vary by T ±10°F or more. This can be attributed to tolerance of control devices, inlet water temperature changes, and/or stacking (higher water temperatures at the top of the water heater). • sing a thermostatic mixing valve helps ensure constant outlet...

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Thermostatic Mixing Valves-7

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 Solutions Watts mixing valves are used to provide tempered water in sinks, showers, and lavatories in commercial, educational, and institutional environments such as restaurants, schools and universities, hospitals, nursing homes, and public restrooms. LavSafe™ Thermostatic...

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Thermostatic Mixing Valves-8

Point-of-Use Series 1070, P1070, G1070 and GP1070 LavSafe® Thermostatic Faucets • Sizes: 3/8" (10mm) • Eliminates installation of under-the-counter thermostatic valve • atts' Advanced Thermal Actuator quickly compensates for pressure and W temperature fluctuations • Mixes hot and cold water to deliver tempered water within specified range • eavy duty Lead Free4 brass body for durability and to comply with H Lead Free4 installation requirements • Copper supplies feature integrated check valves • elf-contained cartridge installs in a minute to simplify repairs S • Virtually shuts off hot water...

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Thermostatic Mixing Valves-9

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 Series LFN170 Hot Water Master Mixing Valves • Sizes: 3/4" - 2" (20 – 50mm) • ead Free6 cast copper silicon alloy L • araffin-based thermostat...

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Thermostatic Mixing Valves-10

ASSE Standards A Comparison of ASSE 1069, 1070 and 1071 with revised 1016 and 1017 standards Standard Watts Applicable Products LFMMV, LFUSG-B, LavSafe faucets Temperature Activated Mixing Valves for hot water distribution systems Automatic Temperature Control Mixing Valves Water Temperature Limiting Devices Tempered water distribution Point-of-use distribution adjustment by installer Gang showers, sitz baths, spas, gang lavatories Sinks, lavatories, baths Thermostatic only Thermostatic only Thermostatic only Valve Temp Range - Outlet Temperature Tolerance + 3˚F to + 7˚F (depending on valve size/capacity)...

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Thermostatic Mixing Valves-11

For applicable products, see Powers, A Watts Water Technologies Company at PowersControls.com Automatic Compensating valves for individual showers and tub-shower combinations Temperature Actuated, Flow Reduction valves Temperature Activated Mixing valves for plumbed emergency equipment for individual fixture fittings (TAFR) Point-of use, bather or bather attendant interface In-line high temperature limit devices Shower or tub/shower combination only Faucets, shower heads, tub spouts dramatically reduce flow when temperature exceeds actuation point Eye washers, eye/face washes, drench showers...

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