Types of nozzles and sprays
Due to a wide range of nozzle shapes and sizes (tip size from 0.8mm to 2.5mm), the consistency of the paint can be varied. The shape of the workpiece and the desired paint consistency and pattern are important factors when choosing a nozzle. The three most common nozzles are 1.4mm / 1.7mm / 2.0mm in the shape of full cone, hollow cone, and flat stream. In a manual operation method the air-spray gun should be held by a skilled operator, about 6 to 10 inches (15–25 cm) from the object, and moved back and forth over the surface, each stroke overlapping the previous to ensure a continuous coat. In an automatic process the gun head is attached to a mounting block and delivers the stream of paint from that position. The object being painted is usually placed on rollers or a turntable to ensure overall equal coverage of all sides.

HVLP (High Volume Low Pressure) spray gun
This is similar to a conventional spray gun using a compressor to supply the air, but the spray gun itself requires a lower pressure (LP) for low overspray. A higher volume (HV) of air is used to propel the paint at lower air pressure. The result is a higher proportion of paint reaching the target surface with reduced overspray, materials consumption, and air pollution. A pressure regulator is often required so that the air pressure from a conventional compressor can be lowered for the HVLP spray gun. Alternatively a turbine unit (commonly containing a vacuum cleaner derived motor) can be used to propel the air without the need for an air line.
A rule of thumb puts two thirds of the coating on the substrate and one third in the air. True HVLP guns use 8–20 cfm (13.6–34 m3/hr), and an industrial compressor with a minimum of 5 horsepower (3.7 kW) output is required. HVLP spray systems are used in the automotive, marine, architectural coating, furniture finishing, scenic painting and cosmetic industries.

LVLP (Low Volume Low Pressure) spray guns
Like HVLP, these spray guns also operate at a lower pressure (LP), but they use a low volume (LV) of air when compared to conventional and HVLP equipment. This is a further effort at increasing the transfer efficiency (amount of coating that ends up on the target surface) of spray guns, while decreasing the amount of compressed air consumption.

LVMP (Low Volume Medium Pressure) spray guns
This is a new type spray gun which occured in the market in the recent years.
the LVMP medium pressure spray gun will generate better atomization than LVLP sprayer. but you have to attach it to one bigger horsepower compressor which would generate more compressed air for this spray gun

Benefit for Turbine HVLP sprayer:

1) Complete Portability typically 20 lbs.

2) Built in filter system

3) All Self contained

4) Fast operation with heated material

4) Excellent finish quality

5) Very Low Overspray – Great for indoor applications

SGW: We prefer the 4 Stage turbine. If you are going to spend this much money on a turbine system, the added power of an under powered turbine (as compared to our compressor guns) will greatly benefit from the extra stage. We do carry 3 stage turbines for serious DIYs.

We also prefer the quiet turbine units. One of the greatest complaints we have of tubines was their annoying vaccume cleaner whine. The Fuji quiet compressors while, more expensive, have 50% less noise. Now, that’s a winner!

Benefit for Compressed air HVLP paint sprayers:

1) Highest Finish Quality

2) Compressor can be used with other tools

3) More versatile setups

We prefer the 4 Stage turbine. If you are going to spend this much money in a turbine system, the added power of an already under powered turbine (as compared to our compressor guns) will greatly benefit from the extra stage. We do carry 3 stage turbines Here

We also prefer the quiet turbine units. One of the greatest complaints we have of tubines was their annoying vaccume cleaner whine. The Fuji quiet compressors while, more expensive, have 50% less noise. Now, that’s a winner!

Top of the Line System 4 State Quiet 4 w/ New! XT2 Pressure Assisted

2-stage vs. 3-stage vs. 4-Stage Turbines sprayers

When portability, lightweight design and a fully self contained system with filtration both fluid and air is required, look at a Turbine HVLP.
About the size of a bread box, Turbines are terrific for painters who are on the go! just don’t have the room for a larger compressor or just want the option of a professional finish where ever they might want it without the hassle of a larger compressor.

By choosing a powerful 4 stage turbine you can get a professional top quality finish comparable to compressor driven HVLP.

2 Stage Turbines are very small and cute but deliver very little power and are not recommended for professional painters.

3 Stage turbines are the lowest you should go for a professional finish. The Fuji Mini Mite 3x is the strongest 3 stage on the market and is a terrific value.

4 Stage turbines are the standard for professional finishers. You can never have too much power when working with today’s modern paints. The stronger motor provides better atomization for your material, allows you to use a longer hose, and allows you to spray thicker materials like latex with ease.

Remember compressor HVLP are not interchangeable with Turbine HVLP. You CAN convert it about $100, but the cost makes it not worth it.

We also carry the quietest Turbine on the Market. The Q4 by Fuji is a terrific powerful turbine unit with very little noise. 50% quieter than regular turbine units.

What is a turbine stage?

Turbine HVLP uses a bypass vacuum motor in the box. This unit has fans (called ‘stages’) driving and moving the air at one end and its own small cooling fan at the other. In between the stages and the cooling fan are the copper windings necessary to power the motor. It is these copper windings that provide heat and evaporation to provide warm clean air.

The cooling fan is secured to the same shaft (rotor) as the main stages (fans). What this means is that all fans, including this small cooling fan, rotate at 19,000-21,000rpm (depending on the motor and certain conditions). This warms the air and the material to provide a finer flow. As you can see the more fans the more power, the more better.

Turbine Nozzle Size Conversion

The fluid jet and needle MUST always match exactly. However, the spraycap/air nozzle may be one size up or down from the norm. The sizes No.3 and 4 setups are both ideal for all fine finishing. 3 different setups are available as accessories. Generally speaking, the quality of atomization and finish suffers as you go to the largest size setups (No.5 and 6). Please note that the chart offers you a starting point only as to the setup size to be used. The best way to decide is by experimentation. If you are using the No. 3 setup and wish to spray faster, wetter then switch to No. 4.

IF YOU DO NOT INTEND ON SPRAYING WALLS & CEILINGS THEN THE ONLY TWO SETUPS YOU WOULD EVER NEED WOULD BE THE #3 AND THE #4.

Size # 3 – 1.0 mm (.039″) FINE TO MEDIUM OUTPUT

Most ‘fine-finishing’. WATER-BASED LACQUERS, NITROCELLULOSE LACQUERS, SEALERS, CELLULOSE, ACRYLICS, SYNTHETICS, POLYURETHANE, STAINS, VARNISH, GLITTER PAINTS, PRIMERS. Please note thicker material must be thinned as much as 30%. Thinning beyond manufacturers specs should not affect finish quality if done properly. No latex and house enamels with this tip.

Size # 4 – 1.4mm (.055″) MEDIUM OUTPUT

Similar to No. 3 but more coverage. Especially suitable for AUTOMOTIVE ENAMELS, NITROCELLULOSE LACQUER, CATALYZED LACQUERS and LATEX where finer finish is required such as louver doors, trim, cabinets (see section above about Latex). Also good for VARNISHES and OIL-BASED PAINTS. Latex paint must be thinned 20%-30%. We recommend floetro, extender or Penetrol.

Size # 5 – 1.8mm (.070″) HIGH OUTPUT

Larger surfaces, thick layers, spotted effects. SEALERS, VARNISH, POLYURETHANE, OIL BASE PAINTS, ENAMELS, EPOXY, PLASTIC, ADHESIVES, FLOOR PAVING PAINTS, LATEX (on walls) SPLATTER PAINTS, MULTI-FLECK ETC.

Size # 6 – 2.2mm (.086″) EXTRA HIGH OUTPUT

Very heavy flows, fast coverage. STONE FINISH PAINTS, TEXTURE COATING, INDUSTRIAL PRIMERS, LATEX (on walls, ceilings) ETC.

If you use an airless paint spray gun to paint the interior of your house, you need to use several different nozzles to complete the task. For example Latex paint / stain and varnish, each have different viscosity. Each one requires a different size nozzle to ensure proper application.
Acrylic/Latex Paints
• When painting a typical wall or room with acrylic or latex paints, a nozzle with a wide-diameter orifice is used. Wide-diameter nozzles spray wide paint patterns, and allows thick acrylic paint to spray evenly, and in thicker coating. The result is being able to paint faster and in high efficiency. Size 515 to 517 nozzle is recommended.

The three digit numbers used to explain a nozzle size refers to the fan width and the orifice size. For example, “515″ nozzle has a fan width of 10 inches and an orifice size of 0.015 inches. The first digit denotes half of the pattern size. So, the 5 equates to 10 inches of fan pattern spray. The second and third digit measure the orifice size in thousandths of an inch. So, the 15 equates to an orifice size of 0.015 inch.
Wiping Stains
• An airless spray gun can be used to spray wiping stains onto wood trim. The nozzle is small in order to reduce overspray. Wiping stain has the consistency of alcohol and is not thick. Using a 409 to 411 nozzle will keep the spray pattern narrow, and allow a smooth spraying of stain onto the wood. If overspray is still a problem, use a 209 nozzle.
Varnish
• Spraying varnish onto stained molding requires a nozzle between wiping stain and latex. Using a 211 to 213 nozzle keeps the flow of varnish narrow to reduce overspray. The nozzle is large enough to prevent thicker varnish from clogging the orifice. If you use hand-mixed varnish or shellac mixed with flakes, a 413 nozzle or larger is recommended to prevent orifice clogging.

Vous pouvez toujours peindre votre maison par le pinceau et le rouleau traditionnel, mais de peinture au pistolet airless système peut réduire votre temps de la peinture en deux.
pistolets à air sont principalement alimentés par air comprimé, il a grand bruit, et il ne peut revêtements par projection à haute viscosité. mais “airless” pulvérisateurs sont également disponibles. Le pulvérisateur est considéré comme “airless” car la turbine électrique crée une pression élevée (environ 210bar) dans le mécanisme de la pompe pour faire sortir la peinture. et la peinture sera pulvériser ou a explosé à la buse.
l’avantage de la peinture airless est comme ci-dessous
1. la finition peinture parfaite
si vous utilisez le rouleau à peinture ou le pinceau, le mur ne sera pas aussi bon, même si vous utilisez les meilleures peintures de qualité, le résultat n’est pas si bon.
mais si vous utilisez les équipements de peinture airless, la haute pression pulvérisent la peinture en très petites particules, et les déposer sur la paroi, la surface finale sera très lisse et étanche.
2. à haut rendement
Le pistolet à air peut pulvériser de 30 à 100 mètres carrés par heure
mais pistolets airless peinture peut 300 – 1500 mètres carrés par heure
ce qui économise beaucoup de votre temps de travail
3. améliorer l’adhérence du revêtement, et de prolonger la durée de vie de la peinture
le pulvérisateur de peinture airless fera à haute pression de 3000 psi ou plus, il donnera la peinture de petites particules de très forte puissance à s’enfoncer dans le mur.
qui signifie que le revêtement de particules, combinées à la main avec de la colle très forte.
et vous pouvez revêtement haute viscosité de pulvérisation sans trop d’eau.
si vous utilisez rouleau de peinture, vous ne pouvez pas peindre le revêtement forte à moins que vous mettre trop d’eau pour la dilution.
4. si vous utilisez un revêtement par pulvérisation airless, vous pouvez économiser 15% – 25% de revêtement
parce que quand vous utilisez le rouleau de peinture, le revêtement de finition n’est pas lisse ou égale partout.
mais si vous avez choisi la peinture airless, toute la place sera de même épaisseur.
5. vous pouvez utiliser le système airless à pulvériser dans n’importe quel coin, angle, pente … …
6. Facile à utiliser, et à faible bruit.
vous n’avez pas besoin d’acheter un compresseur d’air pour alimenter le pistolet à air,
maintenant vous avez juste besoin de mettre la fiche dans la prise du câble, puis connectez toutes les machines + tuyau + canons, et vous pouvez pulvériser immédiatement après le premier recyclage.
Le premier retour est tout à garantir à tous l’air d’échappement à l’intérieur du corps de tuyau et la pompe.

a). If painting inside, cover/mask floors, walls, light fixtures, doorknobs, hinges, light switches, etc.
b). If painting outside, the paint you spray 15 or 20 feet up onto a second story can float and carry in the wind. Cover all landscaping, neighbors’ house, fences, etc.

2. Always keep the airless spray gun pointed at the surface to be painted, and keep it moving in a horizontal motion. Never spray without your hand in motion.

3. Start moving your hand, and then pull back the trigger to start painting.

4. Release the trigger and then stop motion of your hand to stop painting.

5. When you are finished painting, thoroughly clean the sprayer. All the paint must be cleaned out after each use.

Tips:

a). Never mix oil-based paint with water or latex paint and never mix paint thinner with latex paint.

b). Treat your airless sprayer like a gun. Be careful to keep children and untrained people away.

c). The tip where the paint comes out is extremely small and prone to clogging. Any small piece of dust or sand or dried paint will clog the spray tip. To help minimize this problem strain the paint whenever possible with a synthetic paint strainer (never use cheesecloth). When renting or buying a sprayer, always get one with a reversable tip installed. If you get a clog, this allows you to quickly reverse the spraytip, clear out the clog, reverse it back and proceed with painting.

Warning:

a). Airless paint sprayers operate at very high pressures and can very easily cause injures if you were to spray your skin or any part of your body. You may actually inject paint into your tissues or bloodstream through your skin without having an obvious cut or bleeding. The skin can open up and allow the passage of the paint through and then close off again making it appear that nothing is wrong. This is a “fluid injection injury”, and should be treated by a professional immediately.
b). Even when a sprayer is off and unplugged it can have pressure trapped in the machine until it has been released. Always make sure that each time you turn off the machine, you release the pressure in the system by opening the prime valve or by pulling the trigger on the spray gun and spraying into an empty bucket.
c). Airless Paint Sprayers are able to spray a wide variety of paint products but do not spray coatings with textures or grits.

above words are opinion from internet.
it’s just for your reference.
hope you will find it interesting for this article.

Voit silti maalata talosi kautta perinteinen pensseli ja tela, mutta maalausletku järjestelmä voi leikata sinun maalaus aikaa puoli.
Air ruiskupistoolit useimmiten paineistettua ilmaa, se on iso melu, ja se voi suihkuttaa korkea viskositeetti pinnoitteet. mutta “tyyni” ruiskut ovat myös saatavilla. Sumutin pidetään “tyven”, koska sähköinen turbiinin luo korkeassa paineessa (noin 210bar) pumpussa mekanismi työntää ulos maalata. ja maali on Atomisoidaan sokeakokeesta tai räjähti suutin.
etuna tyven maalaaminen on alle
1. täydellinen maalaus viimeistely
Jos käytät maalaustela tai pensseli, seinä ei ole niin sujuvaa, vaikka käytät parasta maalit, tulos ei ole niin hyvä.
mutta jos käytät tyyni maalaus laitteet, korkea paine Atomisoidaan sokeakokeesta maalaus osaksi erittäin pieniä hiukkasia, ja pudottaa ne seinään, lopullinen pinta on hyvin tasainen ja tiukka.
2. korkea hyötysuhde
Ilman maalausruisku voisi spray 30-100 neliömetriä tunnissa
mutta Suurpaineruiskutuksessa aseet voivat maalaus 300 – 1500 m² tunnissa
joten se säästää paljon teidän työajan
3. parantaa pinnoitteen kiinnittymistä ja pidentää käyttöikää ja maalaus
airless väripistooli tekee korkea paine 3000psi tai enemmän, se antaa pienen maali hiukkasia hyvin vahva voima vaipua seinään.
se merkitys pinnoitteen hiukkasen yhdistetään käsi käsin hyvin vahva liima.
ja voit suihkuttaa korkea viskositeetti pinnoite ei liikaa vettä.
Jos käytät maalaustela, et voi maalata vahva pinnoite, ellet laittaa liikaa vettä laimentamiseen.
4. Jos käytät korkeapaineruiskua pinnoite, voit säästää 15% – 25% pinnoite
koska kun käytät maalaustela, pinnoite pinta ei ole sileä tai yhtä suuri kaikkialla.
mutta jos valitsit tyyni maalaus, kaikki paikka on sama paksuus.
5. Voit käyttää airless järjestelmää spray johonkin nurkkaan, kulma, kallistuksen … …
6. Helppo käyttää ja hiljainen.
sinun ei tarvitse ostaa paineilmakompressori valta ilman pistoolissa,
Nyt sinun tarvitsee vain laittaa pistoke kaapeli liittimeen, kytke kaikki laitteet + letku + aseet, ja voit suihkuttaa heti prime kierrätystä.
Prime takaiskuventtiili on vain varmistaa käyttää kaikkia sisäilman letku ja pumpun rungossa.

Maaari mo pa rin pintura sa inyong bahay sa pamamagitan ng tradisyunal na paintbrush at pison, ngunit airless spray pintura sistema ay maaaring putulin ang iyong mga painting oras sa kalahati.
Air spray baril ay nakararami pinapatakbo ng compressed hangin, ito ay may malaking ingay, at hindi ito maaaring spray mataas coatings lagkit. ngunit “airless” sprayers ay makukuha rin. pambomba ay itinuturing na “airless” dahil ang electric turbina lumilikha ng isang mataas na presyon (tungkol sa 210bar) sa loob ng goma ng mekanismo upang itulak ang pintura. at ang pintura ay gumuho o mawalang bisang sa nguso ng gripo.
ang kalamangan ng airless painting ay bilang sa ibaba
1. ang perpektong tapusin ang painting
kung gumamit ka ng pintura o mag paintbrush, pader ay hindi kaya makinis, kahit na gamitin mo ang pinakamahusay na kalidad paints, ang resulta ay hindi mabuti.
ngunit kung ikaw ay gumagamit ng airless painting kagamitan, ang mataas na presyon ay gumuho ang pagpipinta sa tunay maliit na particle, at drop ang mga ito papunta sa pader, ang pangwakas na ibabaw ay tunay makinis at masikip.
2. mataas na kahusayan
Ang air gun spray spray ay maaaring 30-100 square meters kada oras
ngunit airless spray baril maaari painting 300 – 1500 square meters kada oras
kaya ito ay i-save ang marami sa iyong mga nagtatrabaho oras
3. mapabuti ang pagdirikit ng patong, at pahabain ang buhay ng pagpipinta
airless ang pambomba pintura ay gumagawa ng mataas na presyon ng 3000psi o higit pa, ito ay magbigay ng maliit na pintura particle very strong kapangyarihan upang bumaon ang mga dingding.
na ang ibig sabihin patong tinga ay pinagsama kamay sa pamamagitan ng kamay na may tunay malakas na malagkit.
at maaari mong spray mataas lapot patong na walang masyadong maraming tubig.
kung gumamit ka ng pintura pison, hindi ka maaaring pintura sa malakas na patong maliban kung maglagay ka ng masyadong maraming tubig para sa pagbabanto.
4. kung gumamit ka ng airless spray patong, maaari mong i-save ang 15% – 25% patong
dahil kapag ginamit mo ang pintura pison, ang patong tapusin ay hindi madulas o pantay-pantay sa lahat ng dako.
pero kung pinili mo ang airless painting, lahat ng lugar ay parehong kapal.
5. maaari mong gamitin ang sistema airless sa spray sa anumang sulok, anggulo, cant … …
6. Madali ang paggamit, at mababa ang ingay.
hindi mo na kailangang bumili ng air tagapiga para sa kapangyarihan sa hangin spray gun,
ngayon ka lang kailangan upang ilagay ang plug sa socket cable, at pagkatapos ay ikonekta ang lahat ng mga machine + + diligan baril, at maaari mong spray kaagad pagkatapos ng kalakasan recycling.
Ang kasariwaan balbula ay bumalik lamang upang matiyak na ubusin lahat ng hangin sa loob ng medyas at bomba katawan.

Follow the steps below for easy tip selection

Airless Spray Tips Application Guide
1 – Identify the surface you will be spraying
2 – Choose your coating
3 – Determine your spray pattern width [spraying 12 in (30 cm) from the surface]
4 – Follow chart to tip number

Airless Tip handles are color-coded by orifice (tip hole) size for easy identification on the job site

please use the correct airless filter to meet request of different coating.

Red filter— 150 Mesh & 180 mesh, For Varnishes and Lacquers
Yellow filter— 100 Mesh, For Enamels and Stains
White filter— 60 Mesh & 80 mesh, For Latex
Green filter— 30 Mesh, For Heavy-Bonded Paints