Scald protection devices are a must in homes with young children, the elderly and physically challenged individuals - but are recommended for every home and may even be code in some areas. While caution is always first and foremost with regards to scald prevention, scald protection devices can help to maintain safer water temperatures.

Whole House Anti-scald Thermostatic Mixing Valve Aquamix Valve by Sparco

These units are to be installed in a hot water line and require a cold-water feed. They also requires a swing check valve on the cold water feed line to prevent hot water from entering the cold water system. We also recommend a hot water expansion tank when you install these types pf valves to prevent excessive pressure on the hot water side (due to hot water expansion). These types are best installed right at your water heater.

Anti-Scald Valve - 3/4" inlets/outlets

Description	Thread	Price & Quantity
100° F to 145 °F adjustable range Max pressure: 150psi Max temperature: 212°F Brass body construction 8gpm maximum flow rate	NPT	$146.93
	Union NPT	$169.97
	Union Sweat	$164.36

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Anti-Scald Valve - 1" inlets/outlets

Thread	Description	Price & Quantity
100° F to 145 °F adjustable range Max pressure: 150psi Max temperature: 212°F Brass body construction 12gpm maximum flow rate	NPT	$173.92
	Union NPT	$199.93
	Union Sweat	$189.82

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Anti-Scald Mixing Valve
by Legend Valve

According to the manufacturer, this valve maintains a constant water temperature, preventing scalding water from reaching end-point devices in domestic water installations. There are three adjustable (100°, 110°, 120° F) settings on this unit, which automatically regulates domestic water temperatures at fixtures by combining both hot and cold water and by reducing hot water flow if the cold water is shut off.

Scald protection Saves energy by controlling hot water demand Constant water temperature A.S.S.E. 1017 tested and certified Five-year mfr. guarantee when properly installed Accuracy within +/- 1° Max working pressure 225psi Max temp inlet 180° Click here for specifications

The manufacturer specifies that installation and maintenance should only be performed by a qualified plumber,
and they recommend an in-line filter such as a wye-strainer installed before this valve.

Anti-Scald IPS Valve

Description	Size	Price & Quantity
100° F to 120 °F adjustable range Click for flow rates Brass body construction	1/2"	$112.58
	3/4"	$113.79
	1"	$114.95

Anti-Scald Union Sweat Valve

Description	Size	Price & Quantity
100° F to 120 °F adjustable range Click for flow rates Brass body construction	1/2"	$125.61
	3/4"	$125.96
	1"	$126.46

Anti-Scald IPS Valve for Radiant Heat

Description	Size	Price & Quantity
100° F to 140 °F adjustable range Click for flow rates Brass body construction	1/2"	$112.04
	3/4"	$112.24
	1"	$112.37

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1/2" Tempera Automatic Pressure Compensating Valve By Precision Plumbing Products (PPP)

The Tempera valve is a highly sensitive pressure balancing valve that holds a selected water temperature to within one degree regardless of incoming pressure changes. It responds within milliseconds to pressure loss on either hot or cold sides. It is normally installed between the hot and cold supplies and a shower valve. Tempera valves may be installed in any position or at any angle. When installing aTempera valve, be sure to leave a way to access the valve if maintenance is required. Note: The TRB-2 valve is not compatible with the Moen Chateau series single control mixing valves. To see more pictures of the Tempera and a typical installation, click here

Pressure compensating valve TRB-2 = $94.59

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Fact Sheet
What you should know about hot water injuries:
The Scalding Truth

Hot water scalds account for 20% of all burns. More than 2,000 American children are treated for scalds each year. Scalding accidents occur most frequently in the bathrooms and kitchens where they are most preventable. Scalding leads to additional injuries such as heart attacks, shock, falls, and serious broken bones, particularly among the elderly. Scalding and other burns require the most expensive treatments: long hospital stays, costly skin grafts, and plastic surgery. Most U.S. states now mandate some form of anti-scald measures in building codes. The International Association of Plumbing and Mechanical Officials have amended the Uniform Plumbing Code to require anti-scald protection. A bathroom sink and shower can be fitted with anti-scald protective devices for very little money. Given current technology, hot water injuries can be virtually eliminated in the house.

ALL brands of man-made mechanical devices WILL (eventually) fail. The scald protection devices offered below are all mechanical devices, and therefore, it's best to design your hot water systems to not rely on these (or any) devices as your first defense against scalding.

"While taking a shower, sometimes the water temperature changes. Why does this happen and how can I prevent it?" This generally happens when someone uses water from the same water system (for example when flushing a toilet or using the kitchen faucet), at the same time. This causes changes in your pressure in the water line feeding your shower faucet. When you have changes in pressure on one side and not the other, you will feel the result of different volumes of hot versus cold water. To solve this problem, you can either install/increase your water piping sizes (which will help a lot in having less pressure fluctuations), or install a pressure balance device on the hot and cold water that feeds the shower faucet This device detects changes in pressure and automatically balances it. You can also replace the shower faucet with a pressure balance faucet. If none of these are an option, you may want to purchase a scald protector to reduce your chance of getting scalded, but you would still be subject to temperature fluctuations. "I have low water pressure, can I use these products?" ALL of the products on this page will reduce your pressure even more. These anti-scald devices do reduce the pressure as they have friction loss, etc. If your water system is marginal and you cannot have less water pressure, then these products are not for you. "When installing the anti-scalding mixing valves are there any other helpful hints?" We believe that whenever you install an anti-scald mixing valve after the water heater that you should also install a check valve on the cold side, an in-line screen (such as a wye-strainer) and an expansion tank.

We hope that we have helped you on this page with scald protection products,
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