Orbinox TL with bonnet Instruction manual

MODEL
TL
with bonnet
ORBINOX SPAIN Pol.Ind. s/n-20270 ANOETA. Tel:[phone] Fax:[phone] e-mail:[email protected]
ORBINOX COMERCIAL, ORBINOX CANADA, ORBINOX USA, ORBINOX UK, ORBINOX INDIA
www.orbinox.com
INSTALLATION, OPERATION & MAINTENANCE MANUAL
INDEX
Page
0. -Description .................................…….................…....…. 2
1. -Handling ……………………………..……..……….……… 2
2. -Installation ..............................................…........…..........2
3. -Actuators ..................... ..........……….......……............... 5
4. -Maintenance ...….........................................……............ 5
4.1. -Gland packing replacement ………….……..…........ 6
4.2. -Seal replacement .....………...….........….........……. 6
4.3. -PTFE seal replacement ……………………….....….. 9
4.4. -Intermediate gland packing replacement ….……..... 9
4.5. -Lubrication …………………………….……....….…… 9
5. -Flush Ports ………...…………………..………….....…….. 10
6. -Storage …………...................................…….....………... 10
7. -Parts & Drawing ............................…....…........……...…. 11

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0.-DESCRIPTION
The TL model knife gate is a through-conduit bi-directional wafer valve designed for media with
high consistency. The double seat design assures a non-clogging shut off on either normal or
reverse flow
The bonnet assures a tight seal to atmosphere for use with hazardous gases or steam, and
reduces packing maintenance. It also reduces the torque required for valve operation.
1.-HANDLING
When handling an Orbinox valve please pay attention to the following points:
•Do NOT attach lifting gear to the valve actuators or gate guards. They are not
designed to bear the weight, and could easily be damaged.
•Do NOT lift the valve by the valve bore.
This can cause damage to the seating surfaces and seals.
Ideally when using lifting gear to move an Orbinox valve, it should be supported by two or more
eyebolts screwed into the tapped fixing holes in the valve body.
SAFETY WARNING:
•Check that the lifting gear is rated to carry the weight of the valve.
•Make sure the eyebolts have the same thread as the boltholes and that they are well
secured.
During installation it is recommended to lift the valve via soft straps. These can be to the upper
part of the valve body.
2.-INSTALLATION
To avoid personal injury or damage to property from the release of process fluid:
-Those in charge of handling and maintenance of the valve must be qualified and trained
in valve operations.
-Use appropriate personal protection equipment (gloves, safety shoes, etc).
-Shut off all operating lines to the valve and place a warning sign.
-Isolate the valve completely from the process.
-Release process pressure.
-Drain the process fluid from the valve.
Before installation, inspect the valve body and components for any damage that may have
occurred during shipping or storage. Make sure the internal cavities within the valve body are
clean. Inspect the pipeline and mating flanges, making sure the pipe is free of foreign material
and that the flanges are clean.
The TL valve is bi-directional. Both standard (Type A) and reinforced construction (Type B) can
be installed without taking the direction of fluid into consideration.

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However, valves provided with a deflection cone (Type C) are unidirectional. It is vital that they
be installed correctly with respect to the direction of the flow. Correct installation is the
responsibility of the user.
Special care should be taken to maintain the correct distance between the flanges and to
ensure that they are parallel to the valve body. Incorrect alignment of the valve can cause
deformations, which can lead to difficulties in operation.
Place the valve between flanges. First tighten the side
bolts (1) and then the upper and lower bolts (2).
The following table gives the maximum torque values for the valve fixing bolts. Also shown is
the maximum depth (T) allowed for the tapped blind boltholes drilled into the valve body.
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
T (mm) 10 10 10 10 10 14 14 18 18 22 24 24 24 24
Kg.m 6 6 6 6 7 7 7 11 11 15 15 19 19 23

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The valve can be mounted in any position with regard to the pipe. However, it is advisable to
place it vertically in horizontal pipeline (A) if the installation allows it. (Please consult the
technical department at Orbinox).
With larger diameters (> 300 mm), heavy actuators (pneumatic, electric, etc.), or with the valve
installed horizontally (B) or at an angle (C) on a horizontal pipeline, the installation will require
the construction of suitable supports. (See the following diagram and consult the technical
department at Orbinox).
* For these positions please consult Orbinox.
In vertical pipelines, the construction of suitable supports is always required (for further
information please consult the technical department at Orbinox).
Once the valve is installed, test that the flanges have been fastened correctly and that all
electrical and/or pneumatic connections have been properly made.
Where electric accessories are mounted on the valve (i.e. solenoid valves, electro-pneumatic
positioners, etc.), the valve must be earthed correctly before being put into operation.
First, operate the valve with no flow in the pipeline. Then test operation and valve seal with
flow. It should be noted that the packing material might settle in shipping/storage, which can
cause minor leakage. This can be remedied by tightening the gland follower (6) during
installation. Once performance has been tested, the valve can be put into operation.

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3.-ACTUATORS
3.1.-Handwheel
To open the valve turn the handwheel (12) anticlockwise. To close turn the handwheel
clockwise.
3.2.-Lever
To operate the valve with this device, first loosen the locking clamp located on the top of
the yoke (10). Then either open or close the valve by moving the lever in the desired
direction. Finally, fix the position of the lever with the locking clamp.
3.3.-Pneumatic
Valves are usually supplied with a double acting pneumatic actuator although, upon
request, we can supply single-acting actuators. In both cases, the inlet air pressure should
be, between 3,5 to 10 Kg/cm2.
It is essential for a good maintenance of the cylinder that air should be well dried, filtered
and lubricated.
It is recommended to actuate the cylinder 3-4 times before the start up, once it is installed
in the pipeline.
3.4.-Electric actuator
Depending on the type or make of the electric actuator, specific instructions (i.e. a
manufacturer’s manual) will be supplied.
4.-MAINTENANCE
To avoid personal injury or damage to property from the release of process fluid:
-Those in charge of handling and maintenance of the valve must be qualified and trained
in valve operations.
-Use appropriate personal protection equipment (gloves, safety shoes, etc.).
-Shut off all operating lines to the valve and place a warning sign.
-Isolate the valve completely from the process.
-Release process pressure.
-Drain the process fluid from the valve.
The only maintenance required is to change the gland packing (5) or the seal (4) if the valve is
a resilient seated type.
The life of these elements will depend on the working conditions of the valve such as:
pressure, temperature, abrasion, chemical action, number of operations, etc.

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4.1. -Replacement of the gland packing (5):
Although the design of the valve bonnet allows the stuffing box of the bonnet to be sealed
from below, we advise that the valve is depressurised prior to beginning any maintenance.
1) Open the valve fully, to tighten the stem against the stuffing box.
2) Remove gate guards (if the valve has them).
3) Loosen the nuts of the gland follower (6) and remove it. (Photo 1)
4) Remove the old packing (5) and clean the stuffing box.
5) Insert the new packing rings (5), making sure that the ring joints alternate. (Photo 2)
Photo 1 Photo 2
6) Once the necessary packing rings (5) have been inserted, proceed with a steady
initial tightening, of the gland follower (6). (Photo 1)
7) Remount the gate guards (if the valve has them).
8) Carry out some operations with a loaded circuit and then re-tighten the gland
follower (6) to prevent leakage.
4.2.-Replacement of the seal (4) (only applicable to resilient seated valves):
The characteristics of the shut-off depend on the model of the valve.
Body TL: GG25
ND50-600
Body TL: CF8M
ND 50-150

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Body TL: CF8M
ND 200-600
1) Remove the valve from the pipeline.
2) Loosen the nuts between bodies (1,2) and the bonnet (15). (Photo 3)
3) Lift the bonnet (15), until the gate (3) is free. (Photo 4)
Photo 3 Photo 4
4) Split the two half bodies (1,2) and clean internally.
5) Remove the seal retainer rings (11), which support the seals (4) (and/or the sliders
for the stainless steel ND≥200 bodied valves)
6) Remove the worn seals (4) (and/or the sliders for the stainless steel ND≥200 bodied
valves) and clean the seal housing.
7) Re-insert the sliders; ensure that the join is at the top (only stainless steel ND≥200
bodied valves).
8) Once the new seal (4) has been cut, according to size, insert it into the seal housing
ensuring that the seal join is at the top (only tight shut-off valves) (Photo 5). With
stainless steel bodied valves, make sure that the slider join does not coincide with
the seal join.
Seal lengths
ND 50 65 80 100 125 150 200 250 300 350 400 450 500 600
Lengths (mm)
205 255 295 365 440 510 680 860 1020 1190 1350 1510 1630 2010

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Photo 5 Photo 6
9) Insert the seal retainer rings (11) by hammering gently around the edge. (Photos 6
and 7).
Photo 7 Photo 8
10) Position the gaskets (Photo 8) and the gate (3) between the two halves of the valve
body. Lubricate the gate (3) and the inner parts of the slide-way with a silicon-based
grease). Then bolt the two halves together.
11) Replace the gasket (16) between bonnet and body (Photo 9) and remount the
bonnet (15) onto the valve, and bolt it to the body.
12) Open and close the valve two or three times before returning it to the installation
Photo 9 Photo 10

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4.3. -Replacement of the PTFE seal (4):
Follow the same procedure as point 4.2 but with following notes:
1. To obtain a tighter shut off in stainless steel valves (CF8M body), the machined
housing of the seat is sealed with a plastic glue. This is not necessary in cast iron
valves (GG25).
With the seal in this position:
2. Make a circle, joining the ends and making a heart-shaped form (see the following
diagram).
3. Insert both ends of the seal in the upper side of the machined housing of the seat
(adjacent to the bonnet (15)), and pushing the arched part with a finger, insert the
seal into the housing. If the diameter of the valve
is small (DN≤150), a vice can be used.
4.4.-Replacement of the gland packing (8), in valves with “intermediate packing” (see detail C
in Parts List &Drawing):
1) Remove the valve from the pipeline.
2) Loosen the nuts between bodies (1,2) and bonnet (15). (Photo 3)
3) Lift the bonnet (15) of the valve until the gate (3) is free. (Photo 4)
4) Remove the retaining plate (18) and gaskets (16).
5) Remove the old packing (8) and clean the stuffing box.
6) Insert new packing (8), making sure that the packing joints alternate (first one side
of the gate, the next on the other side and so on). (Photo 10)
7) Once the necessary packing (8) has been inserted, change the upper and lower
gaskets (16) and remount the retaining plate (18). (Photo 9)
8) Remount the bonnet onto the valve, and bolt it into the body (1) (Photo 4 and 3).
4.5. -Lubrication:
Twice a year, it is recommended to remove the protection cap (13) and fill up the stem
protector (17) halfway with grease with the following characteristics: highly water resistant,
low ash content, and excellent adherence.

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5.-FLUSH-PORTS
The valves come fitted with flush-ports (14) to allow connection to a cleaning system to flush
the bonnet with water or air. The ports are plugged with threaded metal plugs. These can be
removed for connection to a cleaning system, or for flushing the bonnet in the event of a
blockage.
6.-STORAGE
For long periods it is recommended to store the valves in a well-ventilated room. Valves
should not be exposed to temperatures higher than 30ºC, as some soft seal materials can be
damaged when exposed to higher temperatures.
If outdoor storage cannot be avoided, cover the valve and protect it from sources of heat or
direct sunlight. Provide good ventilation to avoid moisture.