Not a single car repair shop or enterprise whose activity is connected with the application of liquid compositions can do without a spray gun today. The compact tool allows you to cover the target surface with a paint and varnish solution without unnecessary costs and while maintaining an optimal uniformity index. There are various technologies for implementing this device, on one of which HVLP spray guns are based, which are characterized by maintaining low pressure. This is the most powerful type of air gun for paint, which is widely represented on the Russian market.
Features of HVLP system models
HVLP technology has been developed for a long time and introduced into spray guns as a way to reduce paint consumption. The fact is that spraying equipment sins with one drawback - during the formation of a working aerosol cloud, a significant part of the smallest droplets of the composition settle. To minimize this effect, use HVLP spray guns with a pressure rating of 2 bar at the inlet and 0.7 bar at the outlet. The design of the tool reduces the input pressure, as a result of which the spray head with a lower intensity scatter the paint mixture. As a result, a large proportion of the released particles settles precisely on the target surface.
Traditionally, spray guns are associated with pneumatic equipment, but there are also electric models. In terms of working qualities, they generally correspond to pneumatics, but the engine is powered only from the network. This drawback is compensated by the fact that the HVLP electric spray gun has a more compact size, which is convenient when performing large volumes of work.
Main characteristics
The average operating pressure range ranges from 0.7 to 2 bar. But there are also models that support the level of 3-6 Bar. These are already professional devices that are used on production lines. To a large extent, the performance of a tool depends on pressure. That is, the air flow required for spraying. According to this indicator, the models occupy a wide range of values from 50 to 250 l / min. By the way, the equivalent of air consumption as an indicator of power and performance in the case of electric devices is the power potential of the engine. It averages 200-600 watts. At the same time, both the electric model and the pneumatic spray gun HVLP have the same paint tanks. The capacity of the tank can be 0.8-1.2 liters.
Model Sata Graph 3
This is a premium paint sprayer designed for delicate artwork. The HVLP system in this device allows you to fine-tune the parameters of the working jet with the subsequent application of narrow lines and dots. However, the system of optimal paint consumption in the case of Sata models is not the most important. Such pistols are characterized by a high degree of ergonomic design, which can be supplemented with an extensive assortment of nozzles.
It should also be borne in mind that the Sata HVLP spray guns in this line are very sensitive to related equipment. First of all, this concerns the installation of the compressor, which must correspond to a specific modification of the gun in terms of pressure and power.
Model Walcom Genesi
Competitive model in relation to the previous spray gun, but also having its own characteristics. The user of this version of the spray can rely on minimal paint consumption, effective transfer of about 70% of the produced particles and durability of the structure. If the development of Sata was focused on jewelry work with the creation of designs in the form of patterns, then this option is more likely to be useful for typical work operations like painting a car body. At the same time, Walcom Genesi HVLP spray guns have one technological advantage. The design of the gun is complemented by a special air head with increased atomization of the composition. What does this mean in practice? The master will be able to work not only with ordinary paint and varnish mixes, but also effectively lay viscous masses. In addition, the manufacturer offers specially designed needles and nozzles for water-soluble paints.
Model Bosch PFS 55
Unlike previous manufacturers, Bosch in this niche does not occupy the position of a premium brand, but a strong middle peasant. The PFS 55 modification is suitable for ordinary consumers who want to economically but qualitatively refine a car or decorate a particular facade element without unnecessary frills. In terms of working qualities, the device is quite modest - a power of 280 W provides a flow rate of 110 g / min from a lightweight tank with a capacity of 0.6 l. On the other hand, HVLP spray guns of this line are characterized by high ergonomics and reliability. The tool weighs only 1.3 kg, so it is quite possible to plan large-scale work events, without thinking about hand fatigue. As for the implementation of the HVLP system, this version provides a similar function thanks to the Spray Control system. According to the manufacturer, this technology also helps minimize the foggy effect when spraying paint.
HVLP spray gun reviews
Experienced workers in car repair shops and paint and varnish studios note a marked saving in composition consumption compared to traditional versions of the tool. Along with savings, the operator also gets the opportunity for a more accurate correction in terms of the direction of flow of the jet. Although this option is more dependent on the configuration of the gun itself and the type of connection with the working head. But there are obvious flaws that the HVLP airbrush can disappoint. The reviews point to the fact that a reduction in third-party paint consumption logically causes a reverse increase in the supply volume to the target surface. In other words, the abundance of applying the mixture increases, which often leads to the formation of sagging. Therefore, it is recommended to work with the HVLP system only to those who have sufficient experience with spray guns and are able to timely adjust the parameters of the jet.
Conclusion
The inclusion of new technologies in a typical hand tool is always readily accepted by the consumer. Especially masters who responsibly approach their work appreciate various ergonomic and functional additions. But, the development of designs and the expansion of the option naturally leads to an increase in the cost of the product. The HVLP airbrush, the price of which in the middle segment is 6-8 thousand rubles, also falls under this rule. Devices from the premium segment are many times more expensive. For example, individual modifications of Walcom spray guns can be purchased for 20-25 thousand. For comparison, models with the same characteristics, but without the HVLP system and in the standard technological design are available for 3-4 thousand.