819.4334 7
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. 3. To change the
orientation of the inlet and/or outlet port:
1.
Remove the screws (106) holding the inlet (102) and/or
outlet (103) manifold to the covers (101).
2.
Reverse the manifold and reattach. Install the screws
and torque to 14–17 N
S
m. See Torque Sequence, page
28.
03263B
Fig. 3
1
Torque to 14–17 N
S
m. See Torque Sequence,
page 28.
KEY
N
1/2 npt(f) Air Inlet Port
P
Muffler; Air Exhaust Port
is 3/4 npt(f)
R*
1–1/2 in. bspt Fluid
Inlet Port
S*
1–1/2 in. bspt Fluid
Outlet Port
101 Covers
102 Fluid Inlet Manifold
103 Fluid Outlet Manifold
106 Manifold and Cover
Screws
112 Bottom Cover Screws
N
P
R
S
Aluminum Model Shown
1
106
106
102
103
101
112
2
Torque to 22–25 N
S
m. See Torque Sequence,
page 28.
2
2
Fluid Pressure Relief Valve
Some systems may require installation of a pressure relief
valve at the pump outlet to prevent overpressurization and
rupture of the pump or hose. See Fig. 4.
Thermal expansion of fluid in the outlet line can cause over-
pressurization. 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 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.
Caution
03461B
Fig. 4
1
2
Connect fluid inlet line here.
KEY
R*
1–1/2 in. bspt Fluid Inlet Port
S*
1–1/2 in. bspt Fluid Outlet Port
V
Pressure Relief Valve (Order Part No. 819.0159)
R
S
Connect fluid outlet line here.
1
2
3
Install valve between fluid inlet and outlet ports.
V
3
* On pumps 810.0195, 810.0196, 810.0197, and 810.0198, inlet and outlet ports are 1–1/2 in. npt threads.
Содержание 810.0092
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