Orival OR-02-PE User manual

OPERATION AND MAINTENANCE MANUAL
OR SERIES FILTERS
ORIVAL, INC.
213 S. Van Brunt St.
Englewood, NJ 07631
Tel: [phone]
Fax: [phone]
YELLOW - REV: 07 / 2006

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
ORIVAL, INC.
EQUIPMENT DATA SHEET
In-Line Models On-Line Models Bypass Models
OR-02-PE
OR-03-IS OR-03-PS
OR-03-IE OR-03-PE OR-03-BE
OR-04-IS OR-04-PS
OR-04-IE OR-04-PE OR-04-BE
OR-06-IE OR-06-PE OR-06-BE
OR-08-IS OR-08-PS OR-08-BS
OR-08-PE OR-08-BE
OR-10-IS OR-10-PS OR-10-BS
OR-10-PE OR-10-BE
OR-12-IS OR-12-PS OR-12-BS
OR-14-IS OR-14-PS OR-14-BS
OR-16-PS OR-16-BS
OR-18-PS
X – Denotes Filter Model & Configuration Supplied.
Carbon Steel: Stainless Steel: High Temp: High Pressure:
Screen Size: Microns Number of Rinse Valves:
Hydraulic Piston: 38 mm 50 mm
Control System:
Options:

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
REVISIONS
Sections Description Date
Installation Procedure Added Pressure Gauge & 3-way 11/98
Mini Valve Mounting and Uses
Manual Flushing Procedure Added the Omnitrol 500 Electrical 11/98
Control System
Electrical Control System Added the Omnitrol 500 Electrical 11/98
Control System
Schedule of Preventive Added operation of Automatic 03/99
Maintenance & Inspection Built-In By-Pass Valve
Piping Connections Added Installation Drawings 10/2000
Spare Parts Ordering Added Pistonless Parts List
All Sections Minor Clarifications
All Sections Minor Corrections & Clarifications 11/2001
All Sections Corrected For New Address 06/2006
Minor Corrections & Clarifications
Section 12 New Special Installations Section
All Sections Minor Corrections & Revised Table 9-1 07/2006

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
TABLE OF CONTENTS
Page
1. Construction 1
2. Operating Principles 2
3. Installation Procedures 4
3.1 Assembly Prior to Installation
A. Rinse Valve Mounting 4
B. Hydraulic Piston Mounting 4
C. Solenoid Valve Mounting 5
D. Connections of Control Tubing 6
E. Differential Pressure Switch
Mounting and Connections 6
F. Pressure Gauge & 3-way Mini Valve
MountingandUses 7
EL1110 - Tubing & Wiring Connections - OR-02-PE 9
EL1120 - Tubing & Wiring Connections - One Valve Pistonless Filter 10
EL1130 - Tubing & Wiring Connections - Two Valve Pistonless Filter 11
EL1140 - Tubing & Wiring Connections - Two Valve Piston Filter 12
EL1150 - Tubing & Wiring Connections - Three Valve Piston Filter 13
3.2 Piping Connections
A. Filter Installation 14
B. Drain Line Installation 14
3.3 Upside Down Installations 15
Installation Drawing – Model OR-02-PE 16
Installation Drawing – Typical Filters with System Bypass 17
Installation Drawing – Typical Filters without System Bypass 18
Installation Drawing – Typical On-Line Multiple Filters 19
4. First Commissioning and Routine Start-Ups 20
4.1 First Commissioning 20
4.2 Start-Up 20

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
TABLE OF CONTENTS
(continued)
Page
5. Manual Flushing Procedures 21
5.1 OMNITROL 2000 21
5.2 OMNITROL 500 21
5.3 OMNITROL 100 21
6. Shut Down and Drainage Procedures 22
6.1 Shut Down Procedure 22
6.2 Drainage Procedure 22
7. Schedule of Preventive Maintenance and Inspections 23
8. Electrical Control System
By-Pass Valve Control System Schematic 24
OMNITROL 2000 25
OMNITROL 500 25
OMNITROL100 25
9. Troubleshooting 26
9.1 The filter does not experience rinse cycles 26
9.2 The filter rinses continuously 28
9.3 The filter cycles continuously 28
9.4 The Controller inoperative 28
10. Removal/Installation of Major Components 29
10.1 Coarse Screen 29
10.2 Fine Screen 29
10.3 Dirt Collector 30

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
TABLE OF CONTENTS
(continued)
Page
11. Spare Parts Ordering Information 31
Model OR-02-PE Filter Assembly Drawing 32
Typical Pistonless Filter Assembly Drawing 33
Typical Filter Assembly Drawing – with Piston 34
12. Special Installations 35
12.1 Pneumatic Control Conversion 35
Model OR-02-PE Pneumatic Control Drawing 37
Typical Pneumatic Conversion Control Drawing
(Three Rinse Valve Piston Filter Shown) 38
12.2 Using a Controlled Outlet Valve 39
12.3 Using an External Source of Rinse Water 39
12.4 Water Hammer Solutions 39
Typical Filter Installations with a COV 40
Typical Filter Installations with External Rinse Water 41
Typical Filter Modification for Water Hammer Reduction 42
12.5 Optimizing Filter Performance 43
Flow Control Needle Valve Installation 45

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
1
SECTION 1 - CONSTRUCTION
The housing and covers of standard OR Series filters are made from high-grade, low-
carbon steel. All exposed surfaces, both inside and out, are protected by a thick,
smooth, durable polyester epoxy coating that is electrodeposited, then oven cured, over
a zinc phosphate primer coat. Access to the internal components of the filter is through
a removable front cover, with gripping handles, that is secured to the front end of the
filter housing. This allows for easy access for servicing and maintenance purposes. All
wetted components are constructed of either engineered plastics or non-corrosive
metals, providing for an extended service life.
Optional materials are available for special applications. Stainless Steel filter housings
and covers are readily available. See EQUIPMENT DATA SHEET for more information.
On most models, mounted on the end of the filter housing, is the hydraulic piston
assembly - see EQUIPMENT DATA SHEET for more information. Operating with
filtered water supplied by the filter, its purpose is twofold. During the rinse cycle, the
hydraulic piston regulates the dirt collector's longitudinal velocity, preventing the dirt
collector from traversing the length of the filter too quickly, which could result in an
inefficient rinse cycle. Subsequent to the rinse cycle, the piston returns the dirt collector
to its original position, preparing it for the next cycle.
The standard Control System consists of a microprocessor based Controller housed in
a NEMA 4X enclosure, a Differential Pressure Switch (DPS) and a Solenoid Valve. The
Controller mounted DPS monitors inlet and outlet pressures, has dry contacts, and
comes factory preset to 7 psi, increasing. The housing mounted Solenoid Valve is a 2-
way normally closed valve, activated by 24 Vac from the Controller. The supplied
Controller is pre-wired for 110-120 Vac, 60 Hz single phase input power, and the end
user can easily convert to 220-240 Vac, 60 Hz single phase power by re-arranging
jumpers provided on the Controller’s printed circuit board.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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SECTION 2 - OPERATING PRINCIPLES
A. Normal Flow Pattern - Clean Screen
The raw water enters the filter’s inlet and passes through a cylindrical PVC coarse
screen with a series of 9 mm diameter holes. This is the first stage of filtration. This
prevents passage of any large particles that may damage the fine screen or prevent the
dirt collector assembly from moving.
The water then enters the second stage of filtration, where the fine screen is located.
This cylindrical screen consists of woven stainless steel wire mesh secured and
supported by the inner surface of a perforated PVC cylinder. As the water passes
through this screen from the inside out, suspended solids are trapped and accumulate,
creating a "cake" of dirt on the inner surface of the screen. This cake produces a finer
filtration than the screen itself, increasing the filter’s particle removal capability.
The build-up of cake also creates an increasing pressure differential across the screen.
The DPS senses this differential pressure, and its normally open and common contacts
are closed once the factory preset differential pressure is reached. The Controller
monitors this contact closure and the Controller initiates an automatic rinse cycle based
on high DP.
B. Rinse Cycle Flow Pattern
When the Controller senses DPS contact closure it energizes the coil of a 2-way,
normally closed Solenoid Valve. The energized Solenoid Valve relieves pressurized
water from the control stage of the two-stage pressure manifold that in turn vents the
upper chamber of a 2’’ diaphragm rinse valve causing the valve to open. On filters with
two or three rinse valves, all valves open. Also, pressure on the piston head of the
hydraulic piston (if so equipped) is vented to drain. This venting initiates the rinsing
cycle.
As the rinse valve(s) open, the pressure in the hydraulic motor chamber is reduced to
near atmospheric pressure. As a result, water begins flowing through the dirt collector
nozzles, along the dirt collector tube, out the hydraulic motor and to the drain through
the open rinse valve(s). The pressure differential created at the nozzles provides a spot
backwashing effect, drawing a portion of the water back through the screen and
removing the accumulated solids. The water passing through the dirt collector assembly
is ejected out of the holes in the hydraulic motor, imparting a rotational movement to the
dirt collector assembly. In addition, on the models equipped with a hydraulic piston, the
dirt collector assembly begins to move longitudinally, allowing the nozzles to sweep the
entire screen area in a helical fashion. Those models not equipped with a hydraulic
piston have a dirt collector assembly designed to sweep the entire screen area without
the need for longitudinal motion.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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The rinse cycle duration is determined by a value programmed in the Controller. The
recommended programming of this value is given in the Control System manual, and
should only be changed to a different value when absolutely necessary.
Upon completion of the rinse cycle, the solenoid valve is de-energized. The solenoid
valve closes, and pressure is restored in the top chamber of the manifold via an orifice
connecting the two chambers of the manifold. Pressure is restored on the upper portion
of the rinse valve diaphragms, causing the valves to close. On hydraulic piston models,
the dirt collector assembly returns to its original position in preparation for the next rinse
cycle.
For a parallel bank of filters, one Controller is used. It monitors the inlet and outlet of the
entire system with the DPS, and each filter is rinsed sequentially. A programmable
delay allows a pause between the rinse cycle of each filter.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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SECTION 3 - INSTALLATION PROCEDURES
3.1 - ASSEMBLY PRIOR TO INSTALLATION
The rinse valves, hydraulic piston and solenoid valve for the filter have been packed
separately in the filter carton and must be installed prior to start-up of the filter. To
ensure proper installation, follow the subsequent procedures carefully.
A. Rinse Valve Mounting
(See EQUIPMENT DATA SHEET for number of valves supplied).
Rinse valves are supplied with a 2’’ nipple attached.
1. Attach each rinse valve’s 2" nipple to the 2" port on the hydraulic motor
chamber end of the filter – see Figure 3.1.
2. Attach a 2’’ drain line to an adequately sized drain as described in
Section 3.2B as shown in dashed lines in Figure 3.1.
NOTE: RINSE VALVES MAY BE ROTATED IN THEIR PORTS TO FACILITATE
CONNECTION OF THE DRAIN LINES
HEXAGONAL OPENING
HYDRAULIC MOTOR
CHAMBER COVER
Figure 3.1 – Correct Valve & Piston Orientation.
B. Hydraulic Piston Mounting - See Figure 3.1 (if applicable)
1. Slide the white PVC shield off the end of the hydraulic piston after cutting the
tie-wrap and threading the drain fitting from the shield.
2. Remove the six nuts from the studs at the back end of the filter housing.
3. Remove the bolts, nuts and washers securing the hydraulic motor chamber
cover, then remove the cover.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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4. The dirt collector tube is now accessible. Reach in and pull the dirt collector
tube back as far as possible. The lower bearing of the dirt collector is now
accessible through the hole at the end of the filter housing.
5. Extend the piston’s shaft by approximately one-half the piston stroke (this can
be done using the anti-rotational pin protruding from the piston housing).
Carefully screw the bushing on the piston shaft’s tip into the lower bearing
in a clockwise direction. The threads on the bushing will pass through the
threads of the lower bearing, and the piston will now have some play
while being retained by the lower bearing.
NOTE: Filter Dirt Collectors and Hydraulic Pistons may
be supplied without threaded connections. If
this is the case, just place the Piston’s tip in
the recess of the Dirt Collector’s Lower Bearing.
6. Push the piston onto the studs on the end of the filter housing with the slot
and anti-rotational pin in the downward position. Ensure that the O-ring on
the end of the piston seats firmly in the hole in the filter housing. To
facilitate installation, silicone grease may be applied to the O-ring.
7. Reinstall nuts on the studs to secure the piston, and tighten evenly.
8. Place the PVC shield back onto piston, keeping drainage hole in shield at
lowest position to facilitate drainage of any leakage. Reinstall drain fitting
and tubing.
9. Check to ensure that dirt collector assembly rotates and slides freely inside
the filter housing by reaching in and spinning and sliding the dirt collector
assembly.
10. Reinstall the hydraulic motor chamber cover with the bolts, nuts and washers
provided. (Washers are installed under both the bolt head and nut).
C. Solenoid Valve Mounting
Connect the solenoid valve (pre-assembled with elbow and nipple) to the 1/2"
hole on the top of the stainless steel, hex shaped, two-stage pressure manifold
(See Figure 3.1). The solenoid valve should be mounted such that its body is
upright and horizontal, or vertical with its outlet pointing downward, to prevent
backpressure. Ensure that the solenoid valve is mounted in the proper flow
direction, as indicated by an arrow on the bottom of the valve body. Ensure that
the dot on the circular end of the manual override knob is pointing toward the
body’s centerline away from the “MAN” inscription on the valve body.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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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!

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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MULTIPLE FILTER INSTALLATIONS:
When multiple filters are installed on a common supply line to form a filtration
system, the high & low connections from the DPS are made to the inlet and outlet
of the system as shown on page 19.
1. If each filter inlet has a tee fitting, replace it with a straight or elbow fitting
provided and reconnect the hydraulic tubing to the 3-way mini-valve.
2. If there is a fitting in the lower port on one face of the manifold, remove this
fitting and replace it with a plug.
3. Using supplied hydraulic tubing, connect the DPS high to the system inlet,
and DPS low to the system outlet.
F. Pressure Gauge & 3-way Mini-Valve
A 3-way mini-valve is provided with each ORIVAL filter to assist in
troubleshooting and commissioning of the filter. Normally installed on either the
manifold (Model OR-02-PE) or on the outlet leg (all other models), the 3-way
valve allows for three independent pressure sources to be individually monitored
with the use of a single pressure gauge. The 3-way valve serves as a selector to
three ports located on alternating sides of the 3-way valve, one for inlet pressure,
one for hydraulic motor chamber pressure and one for outlet pressure. There is
a common port equipped with a 1/4" brass elbow, into which a pressure gauge
should be installed. The range of the gauge should be such that it can read the
maximum inlet pressure the filter will experience. All other connections to the
3-way valve should have been completed as supplied.
Prior to reading the three pressures, it is recommended to identify the three ports
by tracing the tubing. Note that one port will be connected directly to the filter
and will normally serve as the outlet pressure source. This should be verified,
however, in case an alternate installation is experienced.
The procedure for reading the three pressures is as follows:
1. To read inlet pressure:
Rotate knob until the arrow points to the port where tubing from the
inlet leg of the filter is connected.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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2. To read hydraulic motor chamber pressure:
Rotate knob until the arrow points to the port where tubing from the
hydraulic motor chamber is connected. The hydraulic motor
chamber is located at the end of the filter opposite the cover.
Note: During normal (filtering only) operation, the hydraulic motor
chamber pressure should be equal to the inlet pressure. During
the rinse cycle, the hydraulic motor chamber pressure should drop
to 25-40% of the inlet pressure.
3. To read outlet pressure:
Rotate knob until the arrow points to the port connected to the
outlet leg of the filter.
Note: To determine differential pressure across the filter, subtract
the outlet pressure from the inlet pressure.

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • [phone]
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3.2 - PIPING CONNECTIONS
Typical installation layouts are shown on pages 16-19, and are provided as a guide to a
correct installation. Bypass (B-Series) filters are not shown, but are identical to the
installation of On-Line (P-Series) filters.
A. Filter Installation
Orival water filters may be installed in any position, although for ease of
maintenance, a horizontal installation is recommended. For upside-down
installation information, see Section 3.3.
1. For best results, the filter should be installed as near as possible to the
system it is required to protect. However, if low filter inlet pressure is a
concern, either before or during rinse, the filter may need to be installed
closer to the pressure source.
2. Ensure that the filter inlet pressure will not fall below 30 psig during the rinse
cycle with the rinse valves open.
3. Ensure that the upstream pipe size from pressure source to filter is equal to or
greater than the filter inlet size.
4. An outlet isolation valve must be installed in all applications.
5. An inlet isolation valve must be installed in situations where the pressure
source cannot be shut down for maintenance.
6. Inlet and bypass valves must be installed in situations where a constant
supply of water is required downstream during filter servicing. Note that
this also applies for installations of B series filters with an Automatic Built-
In Bypass Valve .
7. A check valve should be installed downstream of the filter where water
hammer or reverse flow is possible.
8. Ensure that the filter is mounted in the proper direction of flow as indicated by
the arrows on the filter housing. As a check, the inlet is closer to the
cover end of the filter.
9. Ensure that sufficient space is provided around the filter for maintenance as
indicated on the FILTER DATA SHEET supplied with the filter.
B. Drain Line Installation
1. Ensure that the rinse valves are installed as indicated in Section 3.1 A.
2. A 2" drain line should be attached to each rinse valve, according to the
following conditions:
- Maximum piping run should not exceed 30 feet. If a longer run is
required, a minimum 2-1/2" line should be utilized, up to a
maximum of 100 feet.