Select the fittings for the water supply system: three-way valve

Обычно при подаче воды на выходе системы ставятся mixing valves for two moves - for hot water and cold. In order to get water of the right temperature, it is appropriately regulated in each of the compartments. However, for more convenient use, valve designs for three holes were created.

Three-way valve: design and application features

Unlike traditional, three-way valveconsists of a body and three holes. Two of them are input - there comes hot and cold water from the pipes. The third is the output, from which water, the temperature of which is regulated by the consumer, flows outside. The big plus of the system is that the water pressure at the outlet is always constant. The ratio of hot and cold can be changed, the flow of the same flow is debugged automatically.

The three-way valve is equipped with a special stem,moving which, the consumer carries out the regulation of temperature. In other constructions, instead of a rod, a ball is used that turns around an axis. The convenience of such a valve is that the access of water is not completely blocked, but simply the flow of hot and cold liquid is redistributed inside it, which leads to mixing in different proportions.

The three-way valve operates in manual mode and inmode of automation. A drive system connected to different temperature sensors is supplied to it. From them, the system receives the appropriate signals about how much the water temperature in the water lines is above zero. The three-way mixing valve is most often produced with hydraulic drives, electric, etc. The latter type is most popular, since With it you can make a fairly accurate adjustment.

Непрерывно регулировать можно не только подачу hot and cold water, but also air temperature, if the equipment is used in ventilation, cold supply and heating systems. This explains the broad scope of the element. The three-way valve is indispensable in solar heating systems and a solar collector, in systems with hot circulating water supply and without it, with floor heating and in many other things.

Valves are made from such durable, wear-resistant materials such as cast iron, brass, steel, bronze. The drive is included in the package of some designs.

Individual benefits

Not only the three-way control valve itselfIt is produced from high-strength raw materials, but also complementary working parts. So, the rod has a high resistance to corrosion and oxidation. Its double o-ring seal on the drain allows you to replace a failed outer ring without disassembling the entire system.

Valve connecting elements areuniversal. It is connected to the system with the help of fittings of different types - welded, threaded, soldered. This facilitates valve maintenance and operation.

Thermostat valve

Besides the usual three-way valves to the marketThere are new models - thermostat valves. With proper selection of parameters, it is possible to install them both in heating systems and water supply. Thus, a valve with a thermostat is considered a device almost universal.

General recommendations

Before buying any three-wayvalves, you should make sure which option is suitable for your water or heating system and whether it corresponds to the tasks for which they are purchased. Specifications and features are described in detail in the accompanying passport instructions, which should be reviewed in detail.