The control valve is an important element in automation systems. It is used to regulate the flow of liquids and gases. It is worth choosing devices with good technical parameters. Today we will present you the structure and purpose, but also the models that are worth choosing.
Check the control valves at the Onninen wholesaler
Construction and purpose of the regulating valve
The pipeline network used to carry the medium requires precise control. It is important to maintain the appropriate pressure and temperature. A regulating valve can be used for this purpose. It has a characteristic structure. It consists of a body made of strong material, resistant to mechanical damage. Other important elements are: the actuator, stuffing box and plug assembly. The body is a pressure housing and the medium flows through it.
It also provides support for the valve seat. The body can be cast. As for the valve system, i.e. the seat or plug system, it is responsible for the flow of the medium and modulates it. The stuffing box is a housing that houses the stem seal and the stem guide. The actuator generates movement of the stem in order to close or open the control valve. The control valve is used to regulate the amount of flowing medium. It ensures control of the substances contained in the installation.
Use of a regulating valve in the DHW installation
The DHW control valve retains its regulating and balancing properties. You need to know that it ensures the flow of domestic hot water and prevents its backflow. Depending on the signal received from the controller, the valve closes or opens. It perfectly controls the flow of hot water, but also prevents pressure drops. This will prevent damage to the installation. The valve itself is resistant to high temperature and pressure drop. The DHW regulating valve is mounted on the circulation pipe to balance the installation. It can also work as a throttling valve with a preliminary extension. Then it is used in static or dynamic control with a thermal cap installed.
Control valves in the Onninen wholesaler
Noteworthy is the Danfoss AB-QM control valve, DN15 650 l/h . It works regardless of pressure. You can independently set the flow range from 10 to 100%. It is also worth knowing that it is extremely efficient and compatible with a digital actuator. The minimum temperature of the medium cannot be lower than minus 10 degrees.
Another good choice is the Afriso ARV 384 Vario ProClick control valve, DN25 . It is widely used in both heating and cooling installations. Most often, it is installed on the installation's power supply. Then it can be used as a mixing valve. It allows you to obtain the required temperature.
It is worth choosing the IMI Heimeier TBV-C DN20 NF balancing valve . Again, like the previous two, it is very easy to assemble. Primarily it is used for end receivers. It is very durable and resistant to corrosion. Thanks to it, you can control the heat flow through the heating system. You can change the valve opening degree yourself. It also has a hydraulic pressure balancing function.