Airless Spray Tip Designs

There are two predominant configurations of airless spray tips commonly available from most manufacturers these days. These two common configurations are either flat tips or reverse clean tips.

Another type of airless spray tip that is not seen as often these days is the adjustable airless spray tip.

Airless Gun Spitting

Airless Spray gun spitting or not shutting off completley possible causes.

Paint spitting from your airless spray gun when you pull the trigger or release the airless spray gun trigger can be annoying and ruin your airless paint spray job.

Spitting airless paint spray guns can be caused by several common issues.

Blocked Airless Spray Gun

If your airless spray pump primes and pressurises but nothing happens when the trigger is pulled, and it is not the airless spray tip that is blocked, the actual spray gun hand piece could be where the problem is located.

The first thing that needs to be done is relieve all pressure from the airless spray system by opening the prime spray or bypass valve and turn the machine off.

Airless Spray System Types

Commonly available airless spray equipment systems can be powered by a variety of means and are offered in a wide range of sizes and performance capabilities.

Airless Sprayers

Airless sprayers are an excellent method of applying decorative and protective paints or coatings to almost any surface quickly. Airless spray paint units when correctly setup are also capable of providing extremely high quality painted finishes.

Almost any type of paint or coating can be applied using an airless spray unit. Thin products such as stains, timber preservatives, lacquers, polyurethanes and enamels can be applied using an airless sprayer provided the correct filtration, spray tip and pressure setting is used.

Airless Piston Pump Packings

Piston airless spray painting pumps use seals of some type to maintain paint pressure and stop paint from leaking. The most common seals used in airless spray paint pumps are V packings.

V packings in an airless pump are stacked in opposite directions at either end of the piston but which direction is the correct way to install packings?

Airless Spray Tip Data

Airless spray tips are ususally numbered in thousands of an inch with a single digit in front indicating the angle the tip is cut at which determines the paint spray pattern width.

The following airless spray tip charts may help out with metric conversion and airless spray tip flow rate reference data.

Airless Spray Tips

Airless spray painting tips.

An airless spray painting tip (nozzle) is one of the most important parts of an airless spray paint machine. The airless spray tip determines the amount of flow, the level of paint atomisation and the spray paint fan width that a airless spray paint pattern will be.

Airless Spray Servicing

Apart for regular cleaning, lubricating, correct storage, and minor adjustment procedures, all of which can be carried out by owner operators of an airless spray machine, there is not usually any manufactuer issued servicing schedules for airless spray pumps that require regular "service" visits to a airless spray service centre.

Diaphragm Airless Valve Checks

Diagnosing problems with valves in hydraulic diaphragm airless paint sprayers.

Hydraulic diaphragm airless paint spray machines are usually fairly basic simple machines with not much to go wrong. Unlike piston airless paint sprayers the valve action in diaphragm airless sprayers is much more passive and susceptible to problems that may not ordinarily affect piston pump.

A piston airless paint spray may effectively continue to operate using only one of the two valves commonly found in piston airless paint sprayers and enable the operator to complete a job.

Airless Spray Tip Designs

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Airless Gun Spitting

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Blocked Airless Spray Gun

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Airless Spray System Types

Airless Sprayers

Airless Piston Pump Packings

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Airless Spray Tip Data

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Airless Spray Tips

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Airless Spray Servicing

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Diaphragm Airless Valve Checks

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