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 construction and purpose, but also the models that are worth choosing.
Check the control valves at the Onninen wholesaler
Construction and purpose of the control valve
The network of pipelines used to conduct the medium requires precise control. It is important to maintain the appropriate pressure or temperature. A control 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, the stuffing box, and the plug assembly. The body is a pressure housing and it is through it that the medium flows.
It also provides support for the valve seat. The body can be cast. When it comes to the valve system, i.e. the seat or plug system, it is responsible for the flow of the medium, modulates it. The stuffing box, on the other hand, is a housing in which the stem seal and the stem guide are located. The actuator generates the movement of the stem in order to close or open the control valve. The control valve is used to regulate the amount of the flowing medium. It provides control of the substance that is in the installation.
Application of the regulating valve in the DHW installation
The DHW regulating valve maintains its regulating and balancing properties. It is important 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. Thanks to this, the installation will not be damaged. The valve itself is resistant to high temperature or pressure drops. The DHW regulating valve is mounted on the circulation pipe in order to balance the installation. It can also work as a throttle valve with a preliminary extension. Then it is used in static or dynamic regulation with a thermal cap installed.
Control valves at the Onninen wholesaler
The Danfoss AB-QM control valve, DN15 650 l/h is worth noting. It works independently of pressure. You can set the flow range from 10 to 100% yourself. 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. It is most often installed on the supply side of the installation. 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 install. First of all, it is used for end receivers. It is very durable and resistant to corrosion. Thanks to it, you gain control over the heat flow through the heating system. You can change the valve opening degree yourself. It also has a hydraulic pressure balancing function.