Are you looking for the perfect solution for spraying painting wall, car or garden fence? One fact is that it is challengeable to get the great spraying results with the support of just only your hands. Then, a useful air compressor will do this task for you. Air compressor is considered as one of the most popular power tools in most of Western homes. It helps avoid the uneven effect on your appliances and other paint applications. The working principal of an air compressor is that it combines operating pressure and air volume all in one. Operating pressure is expressed through psi, which means pounds per square inch. In addition, air volume comes with cubic feet per minute (cfm). Based on the requirement of the spray gun, you have right adjustment for the level of air volume and operating pressure. If you properly set up of the air compressor and spray guns, it helps solve imperfect coverage in an impressive way. Below is necessary information to succeed in setting up air compressor for spray guns.
The hose, which is located between the spray gun and compressor, plays an essential role in allowing air flow. It may cause to pressure drop if the hose is unsuitable, too narrow or too long. The smaller inside diameter (ID) of the hose, the less air pressure is provided. For example, a larger diameter of 9.5 mm is more powerful than the 7.9 mm hose. The idealist ID of a hose is above 1/4 inches. Many people choose HVLP spray guns with 5/16 inch ID for better performance. You should consider carefully the appropriate hose length to improve the hose effectiveness.
Moreover, long air hose isn’t always better than short one. The hose length should match well with ID to limit the air restriction. When the air pressure moves through the hose, it gradually decreases within longer hose.
Quick Disconnect Fittings (QD’s)
Air connectors are important factors in easily disassembling the hose. However, poor connectors may lose air pressure. Using a great number of air connectors requires a large budget. Then, decide whether setting up the connectors is necessary or not. It is important to use many air connectors if the gun is disconnected to the hose once or twice per day. You should apply a quick disconnect at least once a week.
Remember to select right pressure drop of QD from 1 to 25 psi. The largest diameter minimizes air pressure loss. Choosing great QD design helps reduce restrictive units. If there is small aperture in the female pole of the QD, it indicates that the pressure drop is large.
Adjusting the airflow is simple thanks to the support of air regulator. Ineffective air regulators cause to excessive pressure drop and limit the air flow as well. That is the reason why picking up a good regulator is a vital responsibility. Feel free to select 2 types of air regulators, including gun-mounted and wall-mounted. People often choose bigger wall-mounted regulators for fast and constant air pressure. This helps provide enough air to the spray gun.
A question raised in our mind is how to decide whether the air regulator is too restrictive or not? Wow, the answer is so simple. By reading the gauge of the regulator, you actually know that the air regulator is ready to use or not. Check this condition in case the spray gun is active and the paint flowing is static.
The Performance of An Air Compressor
The air compressor works based on dry and clean air. To ensure the best performance of an air compressor, you had better decide the proper air pressure and volume for starting the spraying process. Several factors you must keep in mind when using an air compressor in spraying are hose ID, previous QD and other important air tools. Besides, always keep the compressor, air tank and filters clean for the next use and establishment.
Traditional air spray guns have the ability to deliver high pressure and low volume, whereas, the new model comes with high volume and low pressure (HVLP). The new air spray guns inherit a plenty of fabulous characteristics from the predecessor and have huge improvement in design. As a result, it offers smoother spray and is better at eliminating material waste and improving transfer effectiveness. Actually, HVLP needs bigger compressor and suitable level of air pressure and volume. It is advisable for you to use an air cap test kit to get the best establishing result. Follow all environmental regulations when using an air compressor.
How to Set Up the Air Compressor for Spray Guns?
There is no difficulty in setting up the air compressor for spraying. First and foremost, you should select the right volume of air and air pressure in a correct way. You will need an air dryer to remove excessive water inside the compressor. Moreover, use a masking paper to test the spraying efficiency before starting its process. Open the control knob and pull the trigger to close the air compressor.