
TROUBLE SHOOTING
Normal maintenance includes replacing the
B15/B16 valve
THE B15/B16 VALVE WILL NEED TO BE
PERIODICALLY REPLACED. THE LONGEVITY OF
EACH VALVE DEPENDS ON THE PRODUCT
BEING SPRAYED AND THE AMOUNT OF
SEDIMENT OR DIRT THAT GETS INSIDE THE
SPRAYER WHILE FILLING.
Four fillings is the average before the valve needs
to be replaced. But it is not uncommon to get more
than four filings out of each valve.
THE STANDARD MODEL B UNITS COME WITH
VITON® O’RINGS, A B15 VITON® VALVE,
AND B12 VITON® VALVE CORE. NOT ALL
PRODUCTS ARE COMPATIBLE WITH VITON®.
There are a variety of o’rings available (Viton®,
Neoprene, Buna & Ethylene Propylene). There are
three different valves (B15 Viton®, B15N Neoprene
&B16-Buna). There are two different valve cores
(B12 - Viton® &B12N - nitrile).
If the standard Viton® o’rings and seals are not
compatible with the product being sprayed please
checkwith the chemical supplier for compatibility
with the other o’rings and seals that are available.
Viton® o’rings and seals are standard on Model “B”
sprayers because they are compatible with the
widest range of sprayable products.
Problem: Leaks from around B25 valve head.
Reason/Solution
1) B25 valve to loose. Firmly tighten by hand only.
2) B14 o’ring is crimped or has some loose
particles on it. Depressurize sprayer and
remove B25 valve head. Remove valve and
check o’ring. Clean away any loose particles
and wet o’ring. Reassemble and repressurize.
TROUBLE SHOOTING
Problem: Pin Stream only.
Reason/Solution
1) Liquid is too thick. Thin with proper diluent until
sprayable. Consult your chemical supplier for
correct thinning procedures.
2) Too little air pressure. You must have at least 80
psi to spray full contents of sprayer.
3) Pin Stream nozzle in operating position.
Remove. Replace with a spray nozzle. (regular,
fine, medium & coarse)
Problem: Air filler assembly won’t accept air or
leaks
Reason/Solution
1) Air filler assembly has been damaged. Replace.
2) Valve core is swollen. Replace.
3) Chemical is attacking valve core. Replace B11
with an alternative valve core.
Problem: Will not spray at all.
Reason/Solution
1) Nozzle is completely clogged. Replace
2) Valve is completely clogged. Replace.
3) No Air pressure. Pressurize with at least 80 psi
4) Sprayer is full to top with liquid not allowing
room for compressed air.
Problem: Leaks from valve stem/nozzle.
Reason/Solution
1) Valve worn or swollen. Replace. Standard
valve has a Viton® seal. Valves also available
in neoprene and buna for chemicals not
compatible with Viton®.
Problem: Leaks from between body and canister.
Reason/Solution
1) O’ring is dirty. Clean and wet.
2) O’ring is swollen. Replace. Standard o’ring is
Viton®. Neoprene, ethylene propylene, and
buna, are available for chemicals that are not
compatible with Viton®.