Heating, ventilation and air conditioning systems require a layout that allows the user to determine the temperature of the environment in the building. To ensure that heating and air conditioning are used correctly, the controls must be efficient and easy to use. HVAC pneumatic regulators provide benefits for certain types of systems, but electronic heating and cooling can also be useful.

How it works

This configuration uses compressed air to adjust heating and cooling. Copper and plastic tubes make up the configuration, moving the compressed air between the switch and the valve drive in the device. Thermostats and sensors in the unit are responsible for maintaining the pressure in the pipeline between the sensor and the valve drive. When temperature and humidity change, sensors respond accordingly to the movement of the valve drive, and compressed air transmits messages throughout the system.


This design is inexpensive in installation, use and maintenance. HVAC pneumatic controls are also durable. Potentially dangerous work zones are normal. When there should be no electronic sparks in the work area, this configuration is ideal because it is not electronic. You can also use a low-load design, such as 25, 50, or 75 percent, to adjust the shock absorber in a specific position if necessary. Electrical systems do not provide this variable. In addition, the compressed air used in this system does not contain oil, clean and dry.

Electric DDC vs. HVAC pneumatic controllers

Electrical systems use an electronic signal to control heating and cooling mechanisms. If you use HVAC pneumatic control, you don’t need wiring to connect the thermostat to the unit. Instead, there are air lines throughout the building, through which compressed air is fed between the air compressor and thermostats. Additional ducts will also be installed between thermostats and local government equipment. The compressed air running through these air lines makes this non-electric version more noisy than the electronic configuration. Compressed air systems are also generally less reliable than electronic systems.

Convert to DDC

The process of converting to an electrical circuit can be technically complex. Each thermostat in the configuration requires the installation of wiring. This wiring may require additional power chains to meet electrical requirements. Adding additional power sources may also require additional transformers. You can leave pneumatic drives or replace them with electronic drives.

It is also necessary to replace temperature, humidity and pressure measurement devices with devices compatible with DDC controllers. There is no need to replace existing valves or flaps, which can reduce the cost of refurbishment. The modules must be installed to work on HVAC components.

Because existing HVAC air regulators may be obsolete, existing ducts may need to be removed before new wiring is installed. This process can be costly and time consuming, so some people prefer to avoid it if possible.

Evaluate your heating and cooling needs to determine which configuration is appropriate for your needs and operations for optimal comfort and energy consumption.

In a wide range of applications that use pneumatic revelors, various product factors can have both a positive and a negative impact on the treatment. Unlike other types of valves, the design of the restop valves provides compatibility with a specific application due to their inner elastomer sleeve. The form of the treatment will determine the composition of the elastomer sleeve and its effectiveness during treatment.

One of the advantages of pneumatic contracted valves is the minimum downtime associated with them. This is especially evident in specialized applications, when the product is compatible for processing and valve. In some operating systems, sensor technology used to detect wear and tear can detect wear at an early stage. The length of the work cycle of the elastomer sleeves is achieved by replacing the line, which also reduces operating costs. It is a method of controlling the processing of sediment, liquids and sediment in various utilities and industrial plants.

Different efficiency and reliable work

Pneumatic remnant valves allow the customer to use the same concept of elastomer sleeve in structures with a full or reduced diaphragm. In combination with a pneumatic control valve, it is desirable that the valve only works with factory air. Thus, costs and maintenance due to the use of shafts of pneumatic cylinders, seals and positioners are not applied. These conditions may also be related to situations of an electrical or electrical nature.

The adjustment of pneumatic resies valves is possible manually with proportional pressure or digital controllers in operations that usually do not exceed the working pressure of 50 pounds per square inch. The advantage of the simplicity of this valve is the lack of moving parts in the valves. An additional advantage is the ability to install the controller remotely from the valve, which has a positive effect on the mode of operation.

Users of pneumatic relived valves have many advantages, including a high flexibility rate. Customers can optimize the size of the adjusting valve by changing the “ID” or the packaging of the elastomer tube and, therefore, the accuracy factor. Add to this the advantage of the available valve systems to perform any special function or compatibility with the products being processed. For all applications, it is possible to use improved valve configurations in grinding conditions, including abrasive, corrosive and lime, which extends the life of the elastomer sleeve.

Thanks to the innovative elastomer sleeve, pneumatic reskematic valves can provide their users with a very strong and reliable operation. For example, for other types of valves, it is important that any processed material be considered abrasive and corrosive, as this can lead to a high degree of valve wear. Cases of accumulation of scum from mineral or chemical deposits are one of the reasons that valves are drunk or do not close. A common cause of this condition is the build-up on the flap or sealing surface. In addition, fibers or the inherent properties of a flowing product can cause valve clogging or leakage.

Market leader and manufacturer of pneumatic reveler valves, AKO Armaturen offers its customers service and support around the world. Based in Germany, with production facilities in France and the UK, they are known to produce only products of the highest quality, durability and reliability.

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