Changing The Orientation Of The Fluid Inlet And Outlet Ports; Fluid Pressure Relief Valve - Graco Husky 715 Instructions And Parts List

Changing the Orientation of the Fluid Inlet
and Outlet Ports
You can change the direction of the fluid inlet and
outlet manifolds (102), if desired. As shipped, the fluid
inlet manifold points away from the air valve (A) and
the fluid outlet manifold points toward the air valve.
See Fig. 4.
1. Remove the bolts (105) holding the manifold (102)
to the covers (101). Save the attaching hardware.
2. Turn the manifold to the desired position, and
reinstall the hardware. Torque the bolts (105) to
3–6 ft-lb (4–8 N.m).
Torque to 3–6 ft–lb (4–8 N.m).
21
A
102
Fig. 4
Installation
105
102
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Fluid Pressure Relief Valve

CAUTION
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent overpres-
surization and rupture of the pump or hose. See Fig.
5.
Thermal expansion of fluid in the outlet line can
cause overpressurization. This 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 can also occur if the Husky pump
is being 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.
Pressure Relief Kit 238–428 is available for use on
aluminum Husky 715 pumps and may be purchased
separately.
KEY
A 3/4 npt(f) Fluid Inlet Manifold
B 3/4 npt(f) Fluid Outlet Manifold
C Pressure Relief Valve
Part No. 110–134 (Aluminum)
Part No. 112–119 (Stainless Steel)
Install valve between fluid inlet and outlet ports.
Connect fluid inlet line here.
Rotate fluid inlet manifold 180 (see Fig. 4).
Connect fluid outlet line here.
Fig. 5
B
C
A
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