Specifications

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?
Hoses will last a long time if they
are properly maintained.
Be careful when dragging hose
across the floor. It should never
be pulled around sharp objects,
run over by vehicles, kinked or
otherwise abused. Hose that
ruptures in the middle of a job
can ruin or delay the work.
Proper hose cleaning techniques
are covered on Pages 11 and 12.
The outside of both air and fluid
hose should be occasionally wiped
down with solvent. At the end of
every job, they should be stored
by hanging up in coils.
9. What kinds of hose fittings are
available?
Permanent, crimp type or reusable
fittings are used to connect hoses
to air sources or to spray
equipment.
10. What kinds of hose
connections are available?
Although there are many different
styles, the two most common are
the threaded and the quick-
disconnect types.
Remember that elements added to
any hose, such as elbows,
connectors, extra lengths of hose,
etc., will cause a pressure drop.
On HVLP systems, quick-
disconnects must have larger,
ported openings (high flow) to
deliver proper pressure for
atomization. Because of normal
pressure drop in these devices,
most are not recommended for use
with HVLP.
11. What is a threaded- type
connection?
This is a common swivel-fitting
type that is tightened with a
wrench.(see figure 4).
Figure 4 - Threaded-Type
Connection
12. What is a quick-disconnect
type connection?
This is a spring-loaded,
male/ female connection system
that readily attaches and detaches
by hand. No tools are required
(see figure 5).
Figure 5 - Quick-Disconnect Type
Connection
Care should be taken when
selecting a quick-disconnect air
connection. Due to design, most
Q.D. connections result in
significant pressure drop. This can
adversely affect spray guns with
higher consumption air caps such
as HVLP.
4. Hoses & Connections (Cont’d)
19