Любое котельное оборудование, которое installed in enterprises or in a private house, is a source of great danger. The water jacket, which is in the composition of the boiler, is a vessel under pressure, which indicates its explosiveness. In order to minimize this risk, modern heat generators and their binding schemes assume the presence of protective devices and various systems. As one of the easiest and most popular is a pressure relief valve with pressure control.
Every owner of boiler equipment,described in the article, must understand how dangerous the operation of the device can be. That is why when installing the device, it is important to think about the need for a safety valve in the system, which you can choose and install yourself without any help. However, it is important to ask the manufacturer whether the warranty for the units will remain after such work.
Application
Для того чтобы понять, где следует установить the device described, it is necessary to deal with what is used valve. The purpose of the installation is the protection of the heating system. With this add-on you can eliminate the increase in water pressure. It may occur when the coolant in the boiler overheats. This is especially true of those devices that run on solid fuel.
As soon as the coolant reaches the boiling point, vaporization begins, which leads to a sharp increase in pressure in the system.
Need to use
If not use safety valve withpressure regulation, the consequences may be ruptures and leakage of the pipeline system. Most often this occurs at the junctions. You may face the destruction of polymer fittings as well as pipes. The most dangerous is the explosion of the boiler tank, as well as the circuit in the boiler room. A small valve, which has a fairly simple design, will help protect against trouble. Given the moment that the pressure rises to a critical point in the boiler, the safety valve should be installed closer to the device on the supply pipe.
Ряд производителей котельного оборудования complement the products of the security group. It includes an automatic air vent, pressure gauge and waste valve. The group is installed directly into the water jacket of the boiler equipment.
What you need to know about the features of use
Pressure Relief Valvenot used in systems. For example, when an electric or gas boiler acts as a heat source in a house, a waste device is not required at all. This is due to the presence of safety automation in these types of heat generators. Among other things, they lack any inertia. Owners of such devices should be aware that when the set water temperature is reached, the electric element or gas burner will simply turn off, and the heating will stop almost immediately.
Need to use
Pressure Relief Valveused when using a stove or solid fuel boiler with a water circuit. Here the installation of the described device is required. As soon as the firewood in the furnace burns, and the coolant in the network reaches a certain temperature, it will be necessary to reduce the heating. It is important to close the access of air to the combustion chamber, this will allow the flame to die out. However, by inertia the temperature will continue to rise.
If this process takes place near the limitvalues, then vaporization in such moments is inevitable. We are talking about temperatures in the range of 90-95 degrees. As mentioned above, boiling up will lead to an increase in pressure, and a safety valve for the boiler can prevent this. It is designed to automatically open the way for the resulting steam, which goes out, thereby lowering the pressure to a standard value. After that, the device will close by itself in order to come to a standby state.
Design features
The design of the described additions boilerequipment is very simple. The body is made using high-quality brass plumbing. In the process of technology, hot stamping is used using 2 cast parts in a semi-solid state. The spring acts as the main working element of the valves. Its elasticity will determine how much pressure is applied to the membrane. The latter closes the passage outwards.
In the normal position, the spring is in the seatwith a seal. The metal washer serves as the top stop for the spring. It is fixed on the rod, the end of which is attached to the plastic handle. With it, the valve position is adjusted. Sealing elements are made of polymer metals, and as for the spring, steel is its basis.
Principle of operation
Предохранительный клапан для котла имеет весьма simple construction, it concerns the principle of operation. In standby mode, which is normal, the water parameters are in a certain range. The membrane serves to close the entrance to the inner chamber. After a situation arises, which can be called close to an emergency, the pressure in the system increases, a mixture of steam and water begins to prop up the membrane. The force of fluid pressure overcomes the elasticity of the spring, which contributes to the opening of the membrane. The coolant enters the chamber, and then flows through the side opening.
The gas valve is simply necessary in order tosome water left the system, this will lead to a sharp decrease in pressure and closure of the membrane. As a rule, the mechanism functions perfectly, especially in the case when the heating equipment operates at the limit, and the water temperature reaches a value of 90-95 degrees. The gas valve can operate quite often. In practice, this leads to the fact that it loses tightness. You may notice this problem when water leaks.
For reference
If you made a checksafety valves, and you notice fresh traces of the mechanism’s leaks, this indicates extreme heat generator operation or the presence of system malfunctions. The problem may be related to the expansion tank.
Installation Recommendations
Installing a safety valve should notassume the presence of valves in the place where the pipeline section from the boiler equipment to the place of the valve. Among other things, it is forbidden to install the device after the circulation pump. The device in this state will pump a mixture of steam and water.
In order to avoid the possibilityspraying water through the furnace, to the outlet of the device you need to attach a pipe that will divert emissions into the sewer. If you want the adjustment of the safety valve to be carried out not only mechanically, but also visually controlled, it is necessary to install a drain funnel on the vertical section of the tube so that the gap of the jet can be seen.
Conclusion
Setting safety valves, theirInstallation and operation is a very simple task due to its design features. Experts do not advise chasing a cheap product, so when choosing a device, be guided by its quality and the reviews of those who have already tried such a system. In this case, the main thing - safety and efficiency.
