Orbinox RB User manual

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www.orbinox.com
INSTALLATION, OPERATION AND
MAINTENANCE MANUAL
RB MODEL
WEIR GATE

MODEL
RB WEIR GATES
EDITION 10-2020
RB-2/12
Reserves the right to change specifications without notice
www.orbinox.com
INDEX Page
0. Introduction ........................................................................................................................... 2
1. Handling and storage…………………………………………………………………………..…...... 2
2. Equipment main components ................................................................................................. 3
3. Installation ............................................................................................................................ 4
3.1. Installation: Concrete wall mounted................................................................................. 4
3.2. Installation: Stem extension, stem guides and floor stand (when applicable)........................ 6
4. Operation.............................................................................................................................. 8
5. Maintenance.......................................................................................................................... 9
5.1. Cleaning and lubrication.................................................................................................. 9
5.2. Vertical and bottom seals replacement ……………….…………...…….……...……....…....... 10
6. Trouble shooting.................................................................................................................... 12
7. Environmental considerations.................................................................................................. 12
0. INTRODUCTION
•This manual describes the recommended procedures for installation, operation, maintenance and safety
precautions for ORBINOX RB model weir gates
•Please read thoroughly all the instructions in the manual prior to installation and contact an ORBINOX
representative in case of any questions
•The manual makes reference to the “General Arrangement Drawing” (GAD). The GAD is the drawing that is
sent to and approved by the customer prior to the production of the weir gate
•ORBINOX assumes no responsibility or liability if the slide gate is not installed, operated and maintained in
strict accordance to the procedures described in this manual
1. HANDLING AND STORAGE
Standard safety procedures should be followed to prevent personal injury or equipment damage. Additionally,
the following instructions shall be followed during handling and storage to prevent any damage of the product:
•Stems have precision surfaces and should never be used as a mean to lift the slide gate
•Equipment shall be stored in a dry, clean and even area on a raised even wood surface to prevent
distortion of the frame
•Do not stack slide gates
•Stems and extensions that are shipped separately shall be supported over their entire length to prevent any
bending or distortion while in storage

MODEL
RB WEIR GATES
EDITION 10-2020
RB-3/12
Reserves the right to change specifications without notice
www.orbinox.com
ITEM
DESCRIPTION
1
FRAME
2
FRAME INVERT
3
FRAME GUIDE
4
SLIDE
5
YOKE
6
EPDM SEAL
7
(U)HMWPE GUIDE
8
THREADED STEM
12
BEVEL GEAR HANDWHEEL ACTUATOR
(OTHER ACTUATORS AVAILABLE)
13
STEM PROTECTOR
2. EQUIPMENT MAIN COMPONENTS

MODEL
RB WEIR GATES
EDITION 10-2020
RB-4/12
Reserves the right to change specifications without notice
www.orbinox.com
3. INSTALLATION
This section describes the different installation methods
3.1. Installation: concrete wall mounted
▶ Required Materials:
•ORBINOX RB Weir Gates are installed by means of Anchor Bolts. Depending on the size and working conditions
they shall be either of the mechanical or chemical type. In order to get the expected performance of the anchor
bolts, the minimum concrete strength shall be 25 MPa (3,625 PSI)
•In order to avoid leakage between the concrete wall and the frame, construction sealant shall be used.
(Sikabond/Sikaflex 11FC Sealant or equivalent, 200ml per meter of opening perimeter). As an alternative, self-
adhesive commercial sponge EPDM strips, approximately 20mm/0,80” wide by 10mm/0,40” thick, can be used
and glued to the slide gate around the hole
•For detailed information about the type, size and quantity of the re-quired anchor bolts, or any other specific
installation notes or materials, please refer to the notes on the „General Arrangement Drawing‟
▶Installation procedure:
Step 1: Concrete wall surface inspection
•The concrete construction shall be flat, level and plumb, and shall be in accordance to DIN 18202 or ACI 117-06
standards. If necessary, use non-shrink grout in order to meet the specified standard
•Concrete wall surface shall be dry (so the construction sealant sets effectively). If it is necessary, the wall can be
dried with the help of a blowtorch or a hot air fan
Step 2: Pre-installation of the weir gate
•Position the weir gate against the wall and line up with the channel
•Drill and install an anchor bolt on each side of the gate (see Figure 2). After installing the first anchor bolt, and
prior to drilling the hole of the other side, make sure the frame is perfectly leveled
Figure 1

MODEL
RB WEIR GATES
EDITION 10-2020
RB-5/12
Reserves the right to change specifications without notice
www.orbinox.com
Step 3: Construction sealant application
•In order to avoid leakage between the frame and the wall, construction sealant shall be applied on the frame:
oRemove the weir gate from the wall (first remove the nuts of the anchor bolts).
oApply construction sealant all around the perimeter of the frame. Sikabond/Sikaflex 11FC (200 ml/m) or
equivalent construction sealant shall be used. Be sure not to get sealant on the gate’s seals, guides, and/or
stem, as this may cause leakage or damage.
Figure 2
Step 4: Final installation
•Place back the gate on the wall at the previously installed anchors
•Drill and install the rest of the anchor bolts
CAUTION!: If the weir gate is not completely in contact with the wall, do not over-tighten the anchor bolts. Over
tightening may bend or distort the frame. If the wall flatness and levelness is according to the specified standards,
the construction sealant will fill in the remaining void
•Apply construction sealant around the frame in order to fill in any existing gap between the wall and the frame
(this step is only for esthetics). Wipe away the excess sealant to leave a smooth finish.
Back side of the frame
(Side in contact with
the wall)
Construction
sealant (Sikaflex
11FC
(200ml/m))

MODEL
RB WEIR GATES
EDITION 10-2020
RB-6/12
Reserves the right to change specifications without notice
www.orbinox.com
Figure 3
3.2. Installation: stem extension, stem guides and floor stand (when applicable)
•Some RB weir gates include stem extensions, extension guides and floor stand (depending on the configuration
of the civil works)
•Once the gate is installed, the rest of the elements must be installed:
oConnect the stem extension (item 3) to the shaft (item 1) on top of the yoke
oInsert all stem guides from the top of the stem extension (when applicable). Align stem extension, and
especially make sure that it is aligned with the vertical axis of the opening
oNext, install all stem guides (drill and tighten anchor bolts). Refer to General Arrangement Drawing for
dimensions
oPosition the floor stand and the operator. Engage the shaft of the stem extension with the operator.
Make sure that the stem extension is perfectly aligned and parallel to the wall surface, adjusting the
offset if necessary, of the Stem-Guides‟(U)HMWPE inserts. Once, the stem extension is perfectly
aligned, install the floor stand (drill and tighten anchor bolts)

MODEL
RB WEIR GATES
EDITION 10-2020
RB-7/12
Reserves the right to change specifications without notice
www.orbinox.com
Figure 4
Operator
Floor Stand
Stem Guide
Connect the
Extension to the
Slide Gate
Adjust offset
distance
from wall
Adjust Stem
Extension Aligment

MODEL
RB WEIR GATES
EDITION 10-2020
RB-8/12
Reserves the right to change specifications without notice
www.orbinox.com
4. OPERATION
Initial Operation:
Before cycling the weir gate, make sure there are no foreign deposits or materials on the seals, guides or sealing
area. Gate seals could be damaged if the area is not cleaned and coated with a light grease. Please refer to section
“ Materials needed for maintenance and seal replacement ” for detailed information about the grease type.
•Manual
Apply a light grease on the stem before initial operation after the installation. If the operation is difficult due
to high torque, stop operation of the gate and check stem alignment.
•Electric actuator
oRefer to the electric actuator manufacturer instruction manual before commissioning the weir gate
oElectric actuators must be limited with limit and torque switches. Electric actuators without these limiters shall
not be used with ORBINOX weir gate. Electric actuators must be adjusted at the time of installation on site
(except in the case of a self-contained frame and yoke-mounted actuators; in this case the motor is factory-
set). To adjust the limit switches, follow the next instructions using values of the GAD:
▪Position the slide in the nearly closed position (leave 10mm /0,40” open). From this
position, manually (using the handwheel) operate the slide until it is completely closed
(check tightness with a 0,05mm/0,002” gauge). In this position, set the limit switch for the
CLOSED position
▪Position the slide in the nearly open position (leave 10mm /0,40” closed). From this
position, manually (using the handwheel) operate the slide until it is completely open. In
this position, set the limit switch for the OPEN position
oBe aware when the gate is almost fully OPEN or CLOSED. If the gate does not stop once the fully open or
fully closed position is reached, stop immediately and correct adjusting again the limit and torque switches
Operation:
•CAUTION! Do not force the operator to close the gate, as it may cause damage to the stem and it does not
improve the sealing system. The maximum applicable force on the handwheel is 25 kg /55 lbs
• The RB weir gate is closed by a clockwise rotation, and opened (downwards) by a counter-clockwise rotation of
the operator
• The RB weir gate is designed to be self-locking, so that the slide maintains its position in open, close or
intermediate positions

MODEL
RB WEIR GATES
EDITION 10-2020
RB-9/12
Reserves the right to change specifications without notice
www.orbinox.com
5. MAINTENANCE
5.1. Cleaning and lubrication
ORBINOX model RB weir gates need practically no maintenance. In order to assure maximum performance of
the weir gate, the following maintenance inspections shall be carried out periodically (every 6 months):
•Stem and stem nut shall be cleaned and greased. In some configurations, the stem may be in contact with
water and dirt. Under these conditions, the threads of the stem and/or stem nut may wear, and they shall be
checked every 3 months.
•Clean the gate with clear water and remove any deposits, especially on the seals and in the guides
•Check the seals and make sure they are not damaged. Seals shall be replaced if damaged. See section
„ Maintenance: Seal Replacement ‟for detailed procedures about seal replacement
•Seals shall be wet while operating. If the weir gate has not been used for a long period of time under dry
conditions, the seals shall be wetted with clear water before operating the weir gate. Operating the gate with
dry seals may damage the seals. Additionally, more torque may be required to operate the weir gate
Spare parts:
ORBINOX does not recommend stocking any spare parts by the owner of the equipment as the weir gates are
designed for a very long life cycle. If a repair part is required, please contact an ORBINOX representative and
provide the following information:
•ORBINOX S/O number
•“ORBINOX General Arrangement Drawing” number
•Project name (if applicable)
•Vendor’s company name
Materials needed for maintenance and seal replacement:
Material
Type
Recommended or equivalent
Grease
Silica-Gel Silicone Grease
Verkosil G-2 (no toxic)
Glue
Instant adhesive
Loctite 495

MODEL
RB WEIR GATES
EDITION 10-2020
RB-10/12
Reserves the right to change specifications without notice
www.orbinox.com
5.2. Vertical and bottom seals replacement
The procedure for replacing the seal is described below. Please note that in any case, the slide must be first
removed from the frame. It is not necessary to remove the frame from the wall
Weir gates (200 x 200mm/8”x 8” to 1200 x 1200mm/48”x48”)
•From the closed position unscrew the nuts and remove the washers of the lateral anchor bolts
•Unscrew bolts (item 3). CAUTION! the slide is no longer secured
•Remove frame guides (item 4), (U)HMWPE guides (item 5) and slide (item 7)
•Unscrew bolts and remove retainers (items 10 and 11)
•Remove seal (item 12) and replace it by the new seal. After installing the new seal, apply grease on it to ease operation
NOTE: the shaft must be completely empty to carry out this maintenance operation as the seals are bolted to
the frame
Figure 5