Installation
Changing the Orientation of the Fluid Inlet and Outlet Ports
The pump is shipped with the fluid inlet (R) and outlet
(S)ports facing the same direction. See Fig. 4. To change the orientation of the inlet and/or outlet port:
1.Remove the screws and washers (106, 112, 113 and 114) holding the inlet (102) and/or outlet (103) manifold to the covers (101).
2.Reverse the manifold and reattach. Install the screws and washers and torque to
Fluid Pressure Relief Valve
CAUTION
Some systems may require installation of a pres- sure relief valve at the pump outlet to prevent overpressurization 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 ambi- ent heat, or when pumping from a cool to a warm area (for example, from an underground tank).
KEY
N1/2 npt(f) air inlet port P Muffler
Air exhaust port is 3/4 npt(f) .
R 2” fluid inlet flange S 2” fluid outlet flange
1Torque to
Sequence, page 31.
N
P
102
Fig. 4
101Fluid covers
102Fluid inlet manifold
103Fluid outlet manifold
106Fluid outlet manifold screws (top)
112Fluid inlet manifold screws (bottom)
113Fluid outlet manifold washer
114Fluid inlet manifold washer
103 106 1
113 S
101
R
114 | 112 1 | 04613B |
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.
KEY
R2” fluid inlet flange
S2” fluid outlet flange
VPressure relief valve
Part No. 112119 (stainless steel)
1Install valve between fluid inlet and outlet ports.
2Connect fluid inlet line here.
3Connect fluid outlet line here.
S 3
V 1
2
R
| 04616B | ||
Fig. 5 | |||
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