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'<br>A dual check valve or dual check assembly is an anti-backflow prevention system designed to prevent contaminated water from seeping into tanks and water storage tanks. It's unlike the standard two-way valves used on heavy vehicles that choose from either the high pressure supply or the low pressure supply.<br><br><br>This system uses the hydraulic pump to maintain a constant supply of pressurized water. When there's not sufficient pressure in the system, it automatically switches to the low pressure supply. That's the reason why some of the tanks of the system use hydraulic pumps. There are three types of system - the pressure switch, the automatic valve switch, and the hydraulic valve switch. Each type of valve has its own benefits and drawbacks.<br><br><br>The first type of system is the pressure switch. As the name implies, the pressure switch is used to automatically switch to the high pressure when the pressure in the tank drops below a preset level. This is a very effective system since it can work for almost all types of tanks, but it only works when the tank is at a certain temperature. If the tank doesn't have this temperature, then it will still switch to the high pressure.<br><br><br>The second type of system is the automatic valve switch. It operates like the pressure switch, except it functions only when there's an incoming supply. Usually, the valve switches to the low pressure when the tank is below a certain temperature or when it has been contaminated with certain contaminants.<br><br><br>The third type is the hydraulic valve switch. As its name suggests, it works like the pressure switch and uses hydraulic fluid to ensure that it is operational. It also works in conjunction with the temperature control valve so that it will operate according to the temperature of the tanks.<br><br><br>These are just some of the advantages of these systems. Some of the disadvantages include the fact that they are quite expensive, and they require installation. This makes them unsuitable for smaller tanks. There are also some disadvantages like they do not work on all types of tanks. Should you cherished this article and you wish to be given more info concerning [https://www.shunchengvalve.com/quality-pipe-union-fittings-manufacturer/ Going to www.shunchengvalve.com] kindly go to our site. and most of them do not last long.<br><br><br>If you are looking for a more affordable system, then you can go for a hydraulic switch. However, make sure that it is made of durable materials such as metal or stainless steel. As mentioned, the low pressure supply switch can be a bit tricky since it can not switch on the high pressure, so make sure that you use a guide that indicates the right level.<br><br><br>Another good thing about this system is that they do not require a lot of maintenance. You just have to keep it clean with a little water every now and then, and your water supply should last for a long time. They also last a long time, since they are not affected by any kind of weather or water.<br><br><br>For those who do not want to install a check valve, there is another option: the thermostatic valve switch. This system works in much the same way as the hydraulic switch, and it is easier to install since it only requires an outlet hole. However, its main disadvantage is that it only works when the temperature is relatively constant. In other words, it will work in the same way when there is no temperature change.<br><br><br>Another thing to consider is the ability of a dual check valve to prevent back-feeding. In this case, it is possible for the water flow to back-flow when the temperature is constantly changing. Since it does not require any pressure to function, it might not give your tanks the protection they need.<br><br><br>It is also important to know if the system you are thinking of buying has a warranty of more than a year. This is to be sure that you won't have problems with the system you are purchasing in the future.<br><br><br>Make sure you take your time in shopping for a new system. You don't want to rush into something that you may regret later.<br>'