Orival OR-02-PE, Operation And Maintenance Manual, Page: 12 / 51

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • (201) 568-3311
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D. Connection of Control Tubing
The drawings on pages 9-13 show the proper hydraulic connections.
The stainless steel, hex shaped, two-stage pressure manifold distributes
pressure to the rinse valves and piston. Each face has two ports. The ports
nearest the solenoid valve are the upper or top ports, and the ports nearest the
filter body are the lower or bottom ports.
1. On models with a piston assembly, the manifold has an elbow fitting in one of
the upper ports. This port has tubing attached. Connect the free end of
this tubing to the straight fitting on the end of the hydraulic piston.
2. Faces of the manifold having both an upper and lower port with straight
fittings and tubing attached are used to connect the rinse valves. For each
rinse valve, connect the tubing from the upper port of the manifold to
the top (black plastic domed portion) of each rinse valve.
3. For each rinse valve, connect the tubing from the lower port of the manifold
to the bottom (brass portion) of each rinse valve.
E. Differential Pressure Switch Mounting and Connections
NOTE : Most filters come equipped with the standard DPS pre-wired and
pre-mounted to the Controller. On drawings found in this manual, the
standard DPS is shown mounted to the Controller. High Temperature and
High Pressure applications require a differential pressure switch designed
for these extremes (see EQUIPMENT DATA SHEET to verify
configuration). These switches are mounted separately. Follow
instructions that come with the switch. Once mounted, wire the switch per
the schematic found in the Control System Supplemental Manual. The
tubing connections are as follows:
SINGLE FILTER INSTALLATIONS:
1. The high side of the differential pressure switch must be connected to the inlet
of the filter with hydraulic tubing provided. On all models except the 2"
units, a tee fitting is installed on the inlet leg for this purpose. For 2" units,
a fitting on the filter body has been provided.
2. The low side of the DPS must be connected to the outlet of the filter with
hydraulic tubing. On all models, a straight fitting has been installed on the
lower port on one face of the manifold for this purpose.
3. The differential pressure switch has been preset for a 7 psi increasing set
point.
DO NOT ADJUST!