ORBINOX SPAIN
ORBINOX SPAIN ORBINOX SPAIN
ORBINOX SPAIN Pol.Ind. s/n-20270 ANOETA. Tel:+34 943 698030 Fax:+34 943 653066 e-mail:orbinox@orbinox.com
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INSTALLATION, OPERATION &
MAINTENANCE MANUAL
MODEL T
TT
TK
KK
K
.
EDITION 02-2013
TK-2/11
www.orbinox.com
MODEL
TK
INDEX
INDEXINDEX
INDEX Page
0.- Description .........................………...................................................................... 2
1.- Handling ..................................………................................................................ 2
2.- Installation .................................……….............................................................. 4
3.- Actuators .....................................………............................................................ 6
4.- Maintenance .....................................………...................................................... 7
4.1.- Gland packing replacement …….……….............................................. 7
4.2.- Seal replacement......………....…....………………………………………… 8
4.3.- Lubrication …………………….………………………………………………. 9
5.- Storage ……….............................……..…………………………………….….…..... 10
6.- Parts list & drawing ...................................………............................................. 11
0.- DESCRIPTION
The TK model knife gate is a through-conduit bi-directional wafer valve designed for high consistency
fluids. The double seat design assures a non-clogging shut off on either normal or reverse flow.
The TK valve complies with the following European directives:
• DIR 2006/42
DIR 2006/42DIR 2006/42
DIR 2006/42/EC (machines)
/EC (machines)/EC (machines)
/EC (machines)
• DIR 97/23/EC (PED)
DIR 97/23/EC (PED)DIR 97/23/EC (PED)
DIR 97/23/EC (PED) Fluid: Group 1 (b), 2 (Cat. I, mod.A)
It may also comply with the directive:
- DIR 94/9/EC (Explosive Atmospheres)
DIR 94/9/EC (Explosive Atmospheres)DIR 94/9/EC (Explosive Atmospheres)
DIR 94/9/EC (Explosive Atmospheres)
The TK valve may comply with the directive regarding equipment and protective systems for their
use in explosive atmospheres. In these cases, the logotype shall appear on the
identification label of the valve. This label shows the exact classification of the zone where the
valve can be used. The user will be liable for its use in any other zone.
This directive only applies in the following atmospheric conditions:
0,8 bar ≤ P ≤ 1,2 bar
-20ºC < T < 60ºC
Any increase in temperature due to frictional warmth is negligible, since the relative speed of the
moving parts is extremely low.
The risk analysis associated to this directive does not take into account the fluid that goes through
the valve, even when such fluid produces an explosive atmosphere. The user must take into
account the risks that the fluid generates, such as:
o Heating of the valve surface.
o Generation of electrostatic charges caused by displacement of the fluid.
o Shock waves caused by the installation (water hammer), internal crashes generated by the
pellets or the risks due to foreign bodies susceptible of being present in the installation.
1.- HANDLING
The valves are packed according to the appropriate transport standards. If you receive the packing
damaged, please inform the transport company in writing and contact you Orbinox representative.
.
EDITION 02-2013
TK-3/11
www.orbinox.com
MODEL
TK
When handling an Orbinox valve please pay attention to the following points:
o Do NOT attach lifting gear to the v
Do NOT attach lifting gear to the vDo NOT attach lifting gear to the v
Do NOT attach lifting gear to the valve actuators or gate guards
alve actuators or gate guardsalve actuators or gate guards
alve actuators or gate guards. They are not designed to
bear the weight, and could easily be damaged.
o Do NOT lift the valve by the valve bore
Do NOT lift the valve by the valve boreDo NOT lift the valve by the valve bore
Do NOT lift the valve by the valve bore.
This can cause damage to the seating surfaces and seals.
o Check that selected lifting gear is rated to carry the weight of the valve.
o Eyebolts: make sure the eyebolts have the same thread as the boltholes and they are all well
secured. 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.
o Soft straps: with the valve in the closed position, the straps should be placed between the
gland area and the bore such that the valve is balanced.
Fig. 1 Handling with eyebolts
Fig. 1 Handling with eyeboltsFig. 1 Handling with eyebolts
Fig. 1 Handling with eyebolts
Fig. 2 Handlin
Fig. 2 HandlinFig. 2 Handlin
Fig. 2 Handling with soft straps
g with soft strapsg with soft straps
g with soft straps
.
EDITION 02-2013
TK-4/11
www.orbinox.com
MODEL
TK
2.- INSTALLATION
To avoid personal injury or damage to property from the release of process fluid:
o Those in charge of handling and maintenance of the valve must be qualified and trained in
valve operations.
o Use appropriate personal protection equipment (gloves, safety shoes, etc).
o Shut off all operating lines to the valve and place a warning sign.
o Isolate the valve completely from the process.
o Release process pressure.
o Drain the process fluid from the valve.
o According to
EN 13463
EN 13463EN 13463
EN 13463----1 (15),
1 (15), 1 (15),
1 (15), during installation and maintenance operations, use hand
tools (non electric)
(non electric) (non electric)
(non electric) with Working Allowance.
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 TK valve is bi-directional. Both standard seat (EPDM) and PTFE seat can be installed without taking the
direction of fluid into consideration.
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.
FlowFlowFlow Flow
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).
.
EDITION 02-2013
TK-5/11
www.orbinox.com
MODEL
TK
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
DNDN
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
T (mm) 11 11 14 14 14 18 18 22 22 28 28 32 32 32
Kg.m 6 6 6 6 7 7 7 11 11 15 15 19 19 23
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).
A
C
B B
C
C* C*
A*
* 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.
These instructions must be observed when installing an Orbinox knife gate valve in an ATEX zone:
o Make sure the valve is ATEX marked according to the requested zone and it includes all
anti-static devices.
o Check continuity between the body of the valve and the pipe (test in accordance with EN
12266-2 Standard, annex B, points B.2.2.2. and B.2.3.1).
o This check must be done every time the valve has been removed from the line, serviced,
and put back to the line.
.
EDITION 02-2013
TK-6/11
www.orbinox.com
MODEL
TK
The operation of automated valves is limited only with fitted gate covers.
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 (7) during installation. The nuts shall be
tightened gradually and crosswise until the leakage stops (see the next figure). Check that there is no
metal contact between the glandfollower (7) and the gate (2).
If the glandfollower nuts are pulled to hard, the force needed to operate the valve will increase, the
valve function will be affected and the box packing lifetime will be shortened.
The table below shows the maximum torque value for tightening the glandfollower nuts.
DN
DNDN
DN Torque (N.m)
Torque (N.m)Torque (N.m)
Torque (N.m)
50 - 100 20
125 - 200 30
250 - 600 35
Once performance has been tested, the valve can be put into operation.
Approximate weight of the handwheel-operated valve (rising stem):
DN
DNDN
DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600
Weight (kg)
Weight (kg)Weight (kg)
Weight (kg) 12 14 16 20 29 35 62 89 110 174 266 326 372 445
3.- ACTUATORS
3.1.- Handwheel
To open the valve turn the handwheel (13) 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 either case the feed pressure can vary between 3,5 and 10
Kg/cm
2
.However, the size of the actuator for each valve has been designed for a feed pressure of
6 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.
.
EDITION 02-2013
TK-7/11
www.orbinox.com
MODEL
TK
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.
o Allowed actuators for ATEX zones: Hand wheel, Chain Wheel, Bevel Gear, Lever,
Pneumatic Actuator (double acting ONLY
ONLYONLY
ONLY) and Electric Motor
o Make sure these actuators are ATEX marked according to the requested zone.
o Maximum travel speed of the gate must equal or below 0,05 m/s
4.- MAINTENANCE
The valve must not undergo any modifications without a previous agreement with ORBINOX.
ORBINOX shall not be liable for any damages that may arise due to the use of non original parts or
components
To avoid personal injury or damage to property from the release of process fluid:
o Those in charge of handling and maintenance of the valve must be qualified and trained in
valve operations.
o Use appropriate personal protection equipment (gloves, safety shoes, etc).
o Shut off all operating lines to the valve and place a warning sign.
o Isolate the valve completely from the process.
o Release process pressure.
o Drain the process fluid from the valve.
o According to
EN 13463
EN 13463EN 13463
EN 13463----1 (15),
1 (15), 1 (15),
1 (15), during installation and maintenance operations, use hand
tools (non electric)
(non electric) (non electric)
(non electric) with Working Allowance.
The only maintenance required is to change the gland packing (6) or the seal (4).
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.
4.1.
4.1. 4.1.
4.1. ---- Rep
RepRep
Replacement of the gland packing (6
lacement of the gland packing (6lacement of the gland packing (6
lacement of the gland packing (6):
):):
):
1. Depressurise the circuit and place the valve in close position.
2. Remove the gate guards (for automatically actuated valves only).
3. Non rising stem. Photo 1: Release the stem nut (8) from the gate (3).
Rising stem valves. Photo 2: Release the spindle or stem (9) from the gate (3).
4. Loosen the screws of the yoke (10) and remove it (without loosing the actuator).
5. Loosen the nuts of the gland followers (7) and remove them. (Photo 3)
6. Remove the old packing rings (6) and clean the stuffing boxes.
7. Insert the new packing rings (6), making sure that the ring joints alternate (the first on one side
of the gate, the next on the other and so on).
8. Once the necessary packing rings (6) have been inserted, proceed with a steady initial
tightening of the gland followers (7). (Photo 3)
9. Place the yoke (10) (with the actuator) and screw it.
10. Fix the stem nut (8) to the gate. (Non rising stem. Photo 1) or fix the stem (9) or the spindle to
the gate (3) (Rising stem valves. Photo 2).
11. Remount the gate guards.
12. Carry out some operations with a loaded circuit and then re-tighten the gland followers (7)
to prevent leakage.
.
EDITION 02-2013
TK-8/11
www.orbinox.com
MODEL
TK
Photo 1 Photo 2
Photo 3 Photo 4
4.2.
4.2.4.2.
4.2.---- Replacement of the seal (4) :
Replacement of the seal (4) :Replacement of the seal (4) :
Replacement of the seal (4) :
1. Remove the valve from the pipeline.
2. Remove the gate guards (for automatically actuated valves only).
3. Release the stem nut (8) from the gate (3). (Non rising stem. Photo 1) or release the spindle or
stem (9) from the gate (3). (Rising stem valves. Photo 2).
4. Loosen the screws of the yoke (10) and remove it (without loosing the actuator).
5. Loosen the nuts of the gland followers (7) and remove them. (Photo 3)
6. Remove the old packing (6) and the gate (3) and clean the stuffing boxes.
7. Split the two half bodies (1,2) and clean internally.
8. Remove the seal retainer rings (5) which support the seals (4).
9. Remove worn seals (4) and clean the seal housing.
10. Insert the new seal (4) in the retainer ring (5).
If the valve has PTFE seal (4): first, place an O-ring (4’) in the retainer ring (5) and later place
the PTFE seal (4). (see the following detail)
.
EDITION 02-2013
TK-9/11
www.orbinox.com
MODEL
TK
4
5 5
EPDM / NITRILE PTFE
4
4'
11. Insert the seal retainer ring (5) and the seal (4) altogether by hammering gently around the
edge.
12. Position the gaskets (15) (Photo 4), the sliders (16) and the gate (3) between the two halves of
the valve body. Lubricate the gate (3) and the inner parts of the slide-way, and then bolt the
two halves together.
13. Once the necessary packing rings (6) have been inserted, proceed with a steady initial
tightening of the gland follower (7). (Photo 3) following the steps of point 4.1.
4444.3
.3.3
.3.
. .
. ---- Lubrication:
Lubrication:Lubrication:
Lubrication:
Lubricate the stem every 30 days with a calcium-based grease with the following characteristics: highly
water resistant, low ash content, and excellent adherence.
Special requirements fo
Special requirements foSpecial requirements fo
Special requirements for ATEX valves
r ATEX valvesr ATEX valves
r ATEX valves:
o The maintenance personnel must be made fully aware of the risks of explosion, and it is
advisable that they receive specific training regarding ATEX.
o Periodicity of check and evaluation of graphite packing status and valve electrical conductivity
must be determined by end user according to valve working conditions. In any case, once the
valve is put into operation, the packing area must be revised after the valve has been stroked
100 times or after 3 months of operation, whatever happens first. After this preliminary check,
new checking periods must be determined by end user based on the results of this first check.
o Clean the valve periodically to prevent dust accumulation. Do not sweep or dump the dust.
Always use a vacuum cleaner system
o Dead en service is not allowed.
o Do not apply any new coating to the valve. Should it require new coating, please contact our
closest representative.
o Allowed seals: EPDM, VITON, NITRILE, GRAPHITE and METAL (no seal)
o Allowed packing: ST and GRAPHITE packing
o Any other materials but those above are not allowed to be used in ATEX zones.
o In order to keep the ATEX approval, always use original spares from Orbinox.
• Washer DIN 6798A (This washer guarantees continuity among carbon steel parts,
coated in epoxy, yoke and body and stainless steel guards for coating
thicknesses up to 200 microns)
• ST and GR packing
ORBINOX ST: Synthetic packing impregnated with PTFE
GR: Graphite packing MONTERO Ecograflex 780R
.
EDITION 02-2013
TK-10/11
www.orbinox.com
MODEL
TK
o After any maintenance of ATEX valves, it is mandatory to check that the valve is earthed through
the pipe, and there is continuity among the different valve components, such as the body, the
gate, the supports, and guards (test in accordance with EN 12266-2 Standard, annex B, points
B.2.2.2. and B.2.3.1).
MAXIMUM FLUID TEMPERATURES
MAXIMUM FLUID TEMPERATURESMAXIMUM FLUID TEMPERATURES
MAXIMUM FLUID TEMPERATURES
Atmosphere
AtmosphereAtmosphere
Atmosphere
Gas/air, steam/air, and mist/air
Gas/air, steam/air, and mist/airGas/air, steam/air, and mist/air
Gas/air, steam/air, and mist/air Dust/air
Dust/airDust/air
Dust/air
80% of minimum fluid ignition
temperature, minus 10ºK
2/3 of minimum dust cloud ignition
temperature minus 85ºK
Note: these maximum fluid temperatures apply to all categories. The differences between categories are
the consideration of foreseeable malfunction cases and rare malfunctions cases
MAXIMUM
MAXIMUM MAXIMUM
MAXIMUM SEAL AND PACKING
SEAL AND PACKINGSEAL AND PACKING
SEAL AND PACKING TEMPERATURES
TEMPERATURESTEMPERATURES
TEMPERATURES
Max Temperature
Max Temperature Max Temperature
Max Temperature
((((ºC)
C)C)
C)
SEAL
SEALSEAL
SEAL
EPDM
EPDM EPDM
EPDM VITON
VITON VITON
VITON NITRILE
NITRILE NITRILE
NITRILE GRAPHITE
GRAPHITE GRAPHITE
GRAPHITE
120 200 120 600
Max Temperature
Max Temperature Max Temperature
Max Temperature
((((ºC)
C)C)
C)
PACKING
PACKINGPACKING
PACKING
ST
ST ST
ST GRAPHITE
GRAPHITE GRAPHITE
GRAPHITE
240 600
Note: Most of the times seals maximum temperature capacity is the key limitation factor when
evaluating valve maximum working temperatures. In ATEX zones these temperatures must be compared
to those above related to limitation of fluids temperatures. Always consider the most restrictive as
maximum valve working temperature.
5.- STORAGE
• For long storage periods keep the valves indoors in a safe and dry place and protect it from any
impact and or vibrations.
• Storing temperatures: -10ºC to +40ºC
• Valves must be stored in either full open or full closed position.
• For any component installed in the valves, electric motors, solenoid valves, etc, please refer to their
own instructions manuals
.
EDITION 02-2013
TK-11/11
www.orbinox.com
MODEL
TK
6.- PARTS LIST & DRAWINGS
1. - BODY 9. - STEM
2. - COUNTERBODY 10. - YOKE
3. - GATE 11. - BUSHING
4. - SEAL 12. - SPRING PIN
5. - K RING 13. - HANDWHEEL
6. - PACKING 14. - KNOB
7. - GLAND FOLLOWER 15. - GASKET
8. - STEM NUT 16. - SLIDERS
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