Graco 1050F Manual De Usuario

Installation 

Some systems may require installation of a 
pressure relief valve at the pump outlet to pre-
vent overpressurization and rupture of the 
pump or hose.

Thermal expansion of fluid in the outlet line 
can cause overpressurization. Thermal 
expansion can occur when using long fluid 
lines exposed to sunlight or ambient heat, or 
when pumping from a cool to a warm area (for 
example, from an underground tank).

Overpressurization also can occur if the 
Husky pump is used to feed fluid to a piston 
pump, and the intake valve of the piston pump 
does not close, causing fluid to back up in the 
outlet line.

F

IG

. 6 shows Fluid Pressure Relief Kit 238428 

for aluminum pumps. Use Fluid Pressure
Relief Kit 112119, not shown, for plastic 
pumps.

Apply thread sealant on threaded connec-
tions and install kit between fluid inlet and 
outlet manifolds.

Connect fluid inlet line in one of the 
optional ports.

2

Connect fluid outlet line in one of the 
optional ports.

3

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