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Our air nozzles, air knives and safety air guns are designed to reduce sound levels and improve the efficiency of blowing with compressed air.
Blowing with compressed air is common in industry when cleaning, drying, cooling, sorting or transporting objects. Silvent air nozzles are used in fixed installations and make efficient use of compressed air. All Silvent air nozzles feature the optimal combination of high blowing force, low energy consumption and low noise levels.
Air knives are most commonly used to blow away liquids, grime, airborne debris, etc. from surfaces or objects. Silvent air knives create a broad and effective flow of air that produces a pneumatic scraping effect without mechanical contact. All Silvent air knives feature the optimal combination of high blowing force, low energy consumption and low noise levels.
Manual blowing with compressed air is common in industry when cleaning, drying or cooling objects. Silvent safety air guns make efficient use of compressed air. All Silvent safety air guns feature the optimal combination of high blowing force, low energy consumption and low noise levels, at the same time as they are ergonomically designed for professional use.
The noise from compressed air valves is extremely hazardous, but equipping valve discharge ports with pneumatic mufflers often causes operational disturbances. Silvent pneumatic mufflers have integrated warning indicators. The technology basically entails that the pneumatic muffler itself sets the optimal combination of flow capacity and noise suppression thanks to the dynamic internal filter, which subsequently minimizes operational disturbances and eliminates clogging. Read more about Silvents Pneumatic Mufflers.
To optimize blowing, it is sometimes necessary to be able to make pressure or blowing angle adjustments, for example. In other cases protection against airborne debris may be needed. Silvent has different types of accessories for easily performing various blowing tasks, optimally and safely.
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Noise from pneumatic valves is extremely hazardous. A simple countermeasure is to fit the pneumatic valve’s outlet ports with pneumatic mufflers. While this reduces noise, it often disrupts operations. A well-known problem with conventional pneumatic mufflers is that the filter sooner or later gets clogged by contaminants. In certain cases, noise suppression is given a lower priority due to clogging problems.
Silvent’s pneumatic mufflers have built-in warning indicators. In a nutshell, the technology allows the muffler itself to set the optimal combination of flow capacity and noise reduction thanks to a dynamic internal filter that minimizes operational disruptions.
Silvent’s pneumatic mufflers reduce the sound level, the risk of stoppages and facilitate maintenance. The built-in warning indicators reduce the risk of back pressure becoming too high and make it easy to identify which muffler needs replacing.
A well-known problem with conventional pneumatic mufflers is that the filter – the so-called diffuser – sooner or later gets clogged by contaminants, leading to:
This has resulted in the removal by process technicians of mufflers from valve discharge ports in order to avoid these types of problems. Thus noise suppression is given a lower priority due to clogging problems.
To simplify the use of mufflers in pneumatic systems, Silvent’s pneumatic mufflers have affixed external diffuser and a movable internal diffuser. The technology allows the muffler itself to set the optimal combination of flow capacity and noise reduction thanks to a dynamic internal filter, thus minimizing operational disruptions. In the two-chamber system, the pneumatic muffler is supplied with a new filter surface as the old surface becomes clogged. This ensures low back pressure and effective noise suppression. It also extends the pneumatic muffler’s service life considerably.
In conventional mufflers, it can be difficult to see when it’s blocked, which creates problems for the operator as maintenance is made more difficult. If a clogged muffler is not replaced, there is a risk of operational disruptions and a deterioration in the application’s efficiency.
To make maintenance easier, Silvent’s pneumatic mufflers are fitted with a clever warning system. When the muffler is blocked and the entire filter surface is used, it’s indicated by a red line that also shows the operator which muffler must be replaced.
This makes it possible to:
Compressed air can generate harmfully high noise levels. So-called sound spikes are common when venting pneumatic valves, and they can be harmful even for short periods. Thus it’s important to endeavor to reduce sound levels to the greatest extent possible. A good way of reducing noise from venting pneumatic valves in machinery is to install pneumatic mufflers.
Silvent’s pneumatic mufflers reduce the noise from pneumatic valves by up to 30-35 dB[A] compared to an un-muffled outlet. This makes a big difference for operators, as a reduction by 10 dB(A) means a halving of the sound level.
1. Minimizes back pressure
The two-chamber system reduces back pressure as the expansion volume increases and the new filter is exposed.
2. Maintaining high working capacity
Pneumatic mufflers are self-regulating in relation to back pressure, which means that the working capacity of the machine is maintained.
3. Indicates clogging
Clearly indicates when the muffler’s filter is clogged before problems begin to occur in the pneumatic system.
When installing pneumatic mufflers, there are two aspects to consider – the connection and pressure capacity.
Unlike other pneumatic equipment, it’s not as important to seal the connection thread on a pneumatic muffler. This is because the muffler’s principal task is to dampen the sound from the outlet port while allowing the air to expand through it. Mufflers are easy to install and we recommend installing them by hand.
When dimensioning the compressed air system, outflow time is greatly influenced by the volume and pressure of the contained air. Mufflers are designed for use in outlet ports on pneumatic valves. This means that the pressure at the muffler is not the same as supply pressure, but much lower and depends on the amount of air expanding. Therefore, pneumatic muffler flow capacity is an important consideration for avoiding unnecessary back pressure in the system. If the application is extremely sensitive to back pressure, choose a muffler with extra large flow capacity. The value shown for max flow capacity through the muffler is measured at a pressure of 5 bar. Through-flow is the amount of air the muffler releases without ‘tripping’ when a valve is in continuous operation.
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