DeVilbiss HVLP Gravity Feed Spraygun Specifikace

ABC’s of Spray FinishingABC’s of Spray Finishing$10.00 1-239-C11/01

28. What are the components ofa pressure feed system?A pressure feed system consists of:a pressure feed spray gun, a pres-sure feed tank, cup or pump,

34. What is the proper techniquefor spray gun stroke andtriggering?The stroke is made with a free armmotion, keeping the gun at a rightangle to the su

38. How should guns be cleaned? A suction or pressure feed gun withattached cup should be cleaned asfollows:Turn off the air to the gun, loosenthe cup

1. Packing nut loose2. Packing worn or dry1. Sticking air valve stem2. Foreign matter on air valve or seat3. Worn or damaged air valve or seat 4. Brok

Top or bottom-heavy spraypattern*Right or left-heavy spraypattern*Center-heavy spray patternSplit spray pattern2. Air Atomizing Spray Guns (Cont’d)141

2. Air Atomizing Spray Guns (Cont’d)151. Inadequate material flow2. Low atomization air pressure(suction feed)1. Fan adjustment stem not seating prope

IntroductionAll spray painting systems - fromthe smallest brush to the mostsophisticated finishing system-must have containers to hold thematerial bei

8. When is an agitator used in apressure feed tank?When the material being used hasfiller or pigment that must be keptin motion to keep its particles

IntroductionThe various types of hose used tocarry compressed air and fluidmaterial to the spray gun areimportant parts of the system.Improperly selec

For optimum spray gun results, the following is recommended: up to 20 ft - 5/16" I.D., over 20 ft - 3/8" I.D. 8. How are hoses maintained?Ho

While this book examines the spray finishing operation and itsequipment from many viewpoints,there is still much more to belearned to become truly pro

IntroductionThe control of volume, pressureand cleanliness of the air entering aspray gun are of critical importanceto the performance of the system.F

*Piping should be as direct aspossible. If a large number offittings are used, larger I.D. pipeshould be installed to helpovercome excessive pressure

IntroductionConsult with appropriate safetypersonnel or “Industrial Hygienist”if in doubt as to the suitability of aparticular respirator before using

IntroductionAll air tools, spray guns, sanders,etc., must be supplied with airwhich is elevated to higherpressures and delivered insufficient volume.

9. Is there anything else to know,about air compressors?Because this book mainly focuseson spray guns, it provides onlybasic coverage of air compresso

IntroductionContaining the overspray andkeeping it out of the air and offother objects is an importantconsideration in a spray finishingoperation. Thi

Figure 4 – Exhaust fan7. What is air velocity?Air velocity in a finishing operationis the term used to describe thespeed of air moving through theempt

(e) Keep the booth interior and exhaust stack free from overspray and dirt accumulation.13. What checks can be used toassure good results from a spray

NOTES28

NOTES29

This book is about the selection,use and maintenance of finishingequipment: spray guns, tanks,cups, hoses, compressors,regulators, spray booths,respir

Sales and ServiceThrough a Nationwide Network of Industrial Distributors1-239-C ©2001, ITW Industrial Finishing All rights reserved Printed

IntroductionThe spray gun is the keycomponent in a finishing system. Itis a precision engineered andmanufactured instrument. Eachtype and size is spec

5. What is a pressure feed gun?In this design, the fluid tip is flushwith the face of the air cap (seeFigure 5). The material ispressurized in a separ

PART IDENTIFICATIONFUNCTION9. What are the principal parts ofa spray gun?Figure 8 - Spray Gun Anatomy10. What happens when thetrigger is pulled?The tr

15. What is the nozzlecombination?In practice, the air cap, fluid tip,needle and baffle are selected as aunit, since they all work together toproduce

have fluid tip openings rangingfrom .062" to.086", and aredesigned to handle viscosities upto 28 seconds in a No. 2 ZahnViscosity Cup.For a

Figure 12 – Suction Feed andGravity Feed System ComponentsOPERATION26. How is suction and gravityfeed equipment hooked up foroperation?Connect the air