Thirty years ago, HVAC pneumatic control systems were an industry standard for commercial buildings. Because they were cheaper than wiring, and more convenient given the available materials, almost all heating and air conditioning systems operated from a pneumatic-controlled thermostat. Unfortunately, as technology evolves, these types of systems become largely obsolete. All modern heating and ventilation systems are powered by electricity. When your device eventually wears out, the amount of work required to connect a modern device is huge, the necessary materials are expensive, and the amount of waste is enormous. These factors are an excellent incentive to maintain and repair your existing unit, rather than to upgrade your building for a new system. Fortunately, there are companies that can support your Pneumatic HVAC control systems for years to come.

What is the real benefit?

Strictly speaking, in the long run, the electronic management system will be much more energy efficient and will reduce operating costs. This is the most important argument that the contractor will make when it recommends that you disable the current installation. However, this thinking does not take into account the amount of waste that will be produced and the significant initial costs associated with updating the old system, in addition to the cost of new equipment. At some point, the cost of “environmentality” does not outweigh the benefits of maintaining the previous level. Any commercial building that wants to make changes should equally weigh all aspects of the process and determine the true cost of the upgrades.

Find the right manufacturer

Aside from efficiency, another argument against the use of Pneumatic HVAC controls is that parts and materials are hard to find. However, this is not the case; some companies are aware that this is a problem of large commercial buildings, and continue to produce all the important parts for the pneumatic system. These companies have all the major brands, as well as spare parts suitable for any system.

In fact, most pneumatic devices are designed as “open systems,” which means that components of one manufacturer can be almost completely replaced by the components of another manufacturer. This means that a qualified and knowledgeable contractor can come to your existing facility and replace any broken parts with new ones that will keep it in working order as new. By updating the system piece by piece, you can significantly extend the life of your current device.


If, after weighing both sides, you are still attracted to energy efficiency and the long-term benefits of electronic installation, you can still offset some of the costs by creating a hybrid system. What makes electronic controls much more efficient is that they can better control and regulate temperature. By installing electronic sensors that work with HVAC pneumatic control throughout the system, your current equipment can achieve this accuracy without a complete and costly upgrade.

The pneumatic dynamometric key is a very useful tool. Its main goal is to provide a very specific torque to a particular object, usually to a fastener, such as a nut. This can be helpful for several reasons. Dynamometric keys are useful if you want to avoid too much delay when there is a risk of failure or when it subsequently becomes too difficult to remove. They are also useful for ensuring that something is tight enough to be safe and reliable. In this article, we’ll take a closer look at air pressure-driven keys and look at their use and usage.

Compared to other dynamometric keys

The pneumatic dynamometric key for the drive uses compressed air. Inside is a high-transmission gearbox that converts a fast high-pressure air flow into a strong slow motion. This provides very high accuracy and can cause the nut to tighten several percent of the target. The alternative to the pneumatic system is hydraulic, electrical and hand keys. Any of them will work, but none of them is as practical and versatile as the pneumatic dynamometric key. Pneumatic keys tend to be smaller, lighter and easier to use than alternatives, and are commonly used in a plant where high-pressure compressed air is available.


Powerful machines often require very stringent tolerances, not only for the accuracy of the part handling, but also for the accuracy of their assembly. Any complex system of moving parts must be strengthened so that the movement is manageable and predictable, but not so much as to limit its freedom. Excessive puffing can be as dangerous as not enough. Examples are engines and gearboxes. High-quality wrench with an adjustable slip point allows you to tighten very quickly and reliably with precise torque, which ensures compliance with production tolerances and saves the stretcher from guesswork.


The pneumatic dynamometric key is one of the most important tools in the plant. This allows the user to tighten the fasteners to a predetermined amount and eliminates the risk of failure and excessive tightening. Compared to hydraulic, electric and manual alternatives, the pneumatic system is clean, simple, easy, reliable and easy to use, making the pneumatic key the best option when you need to quickly, accurately and efficiently tighten for any application, whether for the home. or in large-scale industrial environments.

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