Shower valves are the part which plays the key role in terms of ensuring the mix and flow of both the cold and the hot water when it comes to a shower system. In order to perform this, shower valves will normally have to use a combination of temperature control, flow control and also diverters. Therefore, it is important to understand what these elements are and what they are for.
It seems like a good idea to start with the temperature control. Most of the shower valves in existence out there these days come manufactured with a single control for temperature. Thanks to this temperature control, it is possible for shower valves to make various proportions regarding the mixed cold and hot water making it possible to control the temperature of the mix given out.
It is necessary for shower valves to carry out this mixing process prior to anything else. After this particular process has been completed, it will then be possible for the diverters or flow controls or even both of them to lead the water that has been mixed earlier to various functions that the shower system is able to offer.
The next thing to take into consideration is the flow controls. These are the shower valves that people can control by taking advantage of the handle or lever that exists on them. The task of the flow controls is to take the water that the shower valves have mixed before and also restrict the flow from full on to full off. This will in turn enable a fine flow rate control between the 2 extremes to take place.
Each unit of flow controls is supposed to take into control the flow rate that comes from the outlet of a single valve and subsequently to each of the functions a shower system can possibly offer.
At this point of time, people may be asking what about a shower system that has 2 functions such as a shower system with the hand held and overhead showers. Well, in this case, 2 flow controls are required. Normally, it is possible for each of these flow controls to control -- without any dependencies on each other -- the flow rate going to one single outlet. With that being said, it is possible to have these flow controls at one time.
However, this is not the case with diverters. A diverter's task is to lead the water that shower valves have already mixed to either one or multiple shower valves outlets. Additionally, a diverter is also capable of stopping water supply going to any outlets a shower system may have. However, only one of the existing diverters can work at a given time. Also, with diverters, it is not possible for fine control over flow rate to take place.
Another thing that people have to know regarding shower valves is that they are divided into manual and thermostatic shower valves. The thermostatic ones have built-in safety feature that stops water flow if the mixed water temperature is above the normal value. In some cases, the thermostatic shower valves also allow people to set and maintain the temperature of the water. The manual valves, on the other hand, do not usually come manufactured featuring the safety and the water temperature control features.