How Does A Thermostatic Shower Valve Work

The active part of the mixing valve the element 4 expands and contracts in response to changes in the temperatures and relative pressures of the incoming hot and cold water supplies 1 2. The orchard eden valve pictured below is typically known as a bar valve and sits external to the wall. There are four components within a thermostatic valve that controls the water s temperature.

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How to adjust a thermostatic shower valve unscrew the handle or lever.

How does a thermostatic shower valve work. The thermostatic element reduces its size with cold water and therefore allows the piston to pump in more hot. How a thermostat works hot and cold water entering the valve is mixed to a temperature pre selected by the user or installer. A thermostatic mixing valve is a device that mix or blends hot water usually stored at temperatures high enough to kill bacteria with cold water to ensure constant safe outlet temperatures preventing scalding. The thermostatic element is responsible for maintaining the temperature of water by compressing or.

As the element expands and contracts it moves the slide valve 5 to correctly proportion the. Thermostatic shower valves regulate the temperature of the water within one half of a degree of the desired temperature. Take off the brass temperature stop lug by removing the retaining screw on the end. Loosen the grub screw with an allen key.

Components of a thermostatic shower valve thermostatic element. This will allow you to pull the handle off of the valve. Thermostatic systems have two valves one that controls the flow of water and the other that controls its temperature. This system reacts to the temperature of the water and not the water pressure as does a pressure balance valve.

The valve features a chrome plated finish and has easy to read easy to grip flow and temperature control dials. Types of thermostatic shower valve bar valve. Once removed this will expose the grub screw. This means that you don t have to keep adjusting the hot and cold water valve as thermostatic shower valves do all the work for you.

The expansion and contraction of the internal thermostatic element moves a slide valve altering the aperture of the hot and cold inlet ports to the inner mixing chamber thus constantly. It is easy to fit and manufactured in abs plastic and brass for durability.