Reference; Spray Tip Selection; Understanding Tip Number - Graco 3A4803A Operation, Parts

Reference

Spray Tip Selection

Selecting Tip Size
Spray tips come in a variety of hole sizes for
spraying a range of fluids. Your sprayer
includes a tip for use in most paint spraying
applications. Use the coatings table on page
15 to determine the range of recommended
tip hole sizes for each fluid type. If you need
a tip other than the one supplied, see the How
to Spray, page 15.
NOTE: For proper sprayer operation use only
a tip from the same tip family that came with
your sprayer. See Tip Family, page 15.
Hints:
•
As you spray, the tip wears and
enlarges. Starting with a tip hole size
smaller than the maximum will allow you
to spray within the rated flow capacity of
the sprayer.
•
Use larger tip hole sizes with thicker
coatings and smaller tip hole sizes with
thinner coatings.
•
Tips wear with use and need periodic
replacement.
•
Tip hole size controls flow rate - the
amount of paint that comes out of the
gun.
3A4803A
Fan Width
Fan width is the size of the spray pattern,
which determines the area covered with each
stroke.
Hints:
•
Select a fan width best suited to the
surface being sprayed.
•
Wider fans allow provide better
coverage on broad, open surfaces.
•
Narrower fans provide better control on
small, confined surfaces.

Understanding Tip Number

The last three digits of tip part number (i.e.:
xxx412) contains information about hole size
and fan width on surface when gun is held 12
in. (30.5 cm) from surface being sprayed.
412 tip has 8-10 in.
(20-25 cm) fan width.
ti29772a
First digit when doubled = approximate fan
width.
Last two digits = tip hole size in thousands of
an inch.
For an 8 to 10 in. (203 to 254 mm) fan width and
0.010 (0.25 mm) hole size, order Part No. ...410.
Reference
412 tip has a
0.012 in.
hole size.
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