Armatec 2236 Instruction And Maintenance Manual

These instructions must be stored and consulted by installers and by personnel doing routine and
extraordinary maintenance.
- Before installation or maintenance, cut out the line upstream
and downstream of the valve and make sure there is no
pressure.
- Never exceed the maximum pressure and temperature limits
marked on the valve.
- The product must not be modified: any tampering could make
the device dangerous.
- The manufacturer will not be liable if the product is used
- Before shipment, the surfaces of the liners are lubricated with
silicone grease and/or oil.
- If the liner and disc have to be silicone-free for specific uses
(for example, hydrogen, oxygen, chlorine, etc.), the silicone
can be removed with appropriate solvents or other suitable
cleaning and degreasing products.
- Before installing the valve, clean all dirt and welding residue
from the piping to prevent damage to the body seat.
- Make sure that the piping is current-free. If there is any stray
current, equip the valve with an antistatic device.
- Do not use the valve as a lever to widen the flanges: this may
result in damage to the seat during installation or operation.
Only for valves marked according to Directive 94/9/EC (ATEX)
The valves marked according to Directive 94/9/EC (ATEX) are devices designed to be used in accordance with
the operational parameters established, even in potentially explosive atmospheres caused by mixtures of air and
gases, vapours, mists or dusts.
The valves have to be used in atmosphere having temperature from -20°C to +60°C [UNI EN 13463-1:2009].
CLASSIFICATION AND ZONES OF USE
Group
Category
Zone
Type of atmosphere
Protection
Maximum surface temperature
Note on the maximum surface temperature: it does not depend
on the valve, but only on the operating conditions related to the fluid
transported. The valve itself is therefore NOT to be considered as
a source of ignition. The user should consider this technical aspect
Valves with rubber gasket
If the valves are not installed immediately, they should be stored
in a closed, clean and dry room. The valves are packed in boxes
to make storage easier. If the valve remains in the warehouse for
a long time, or connected to the piping for an extended period
without being used, it is advisable to leave the disk halfway open
and apply a suitable lubricant (vegetable oil for EPDM; silicone
grease for all others) to the elastomer seats.
INSTRUCTION AND MAINTENANCE MANUAL
BUTTERFLY VALVES TYPE 2236/2246
GENERAL INSTRUCTIONS
II
2
1 21
Gases Dusts
Construction safety "c"
TX
Marking
The user must determine whether the fluid intercepted can cause electrostatic charge. There
shall be no occurrence of adiabatic compression and shock waves: it is the user's responsibility to
consider such risk and include the necessary measures/devices to prevent this eventuality.
STORAGE
improperly. Installation and maintenance must be performed
by specialised personnel.
- This product must be used only for its specific intended
purpose: any other use is potentially dangerous. The
manufacturer will in no case be considered liable for any
damage deriving from improper use..
- If the liner becomes damaged, have it replaced immediately
by qualified personnel.
- When installing on a new system, use the valve as a spacing
element. Spot-weld the flange and piping and, before
completing the weld, remove the bolts and valve. Do not
complete welding of the flanges to the piping with the
valve bolted between the flanges: this will cause serious
heat damage to the seat.
- On the butterfly valves thre is a marking with data that allow
to identify the product and the operational conditions.
- On the marking thre is moreover the marking of conformity
CE and, for butterfly valves in explosive atmosphere, the
specific marking in accordance with con la Directive
94/9/EC (ATEX).
Zone 1 (gases) & 21 (dusts): explosive atmosphere
may occur occasionally in normal operating conditions.
CAUTION: valves are NOT intended to function in
places where an explosive atmosphere is present
always, often or for long periods (zone 0).
and take appropriate countermeasures.
In case the valve (and the pipe) is "thermally insulated" the installer
should indicate the appropriate waiting time from plant shutdown,
before proceeding with the removal of the insulation.
Valves with PTFE gasket
If the valves are not installed immediately, they should be
stored in a closed, clean and dry room. The valves are packed
in boxes to make storage easier. If the valve remains in the
warehouse for a long time, or connected to the piping for an
extended period without being used, it is advisable to leave
the disk halfway open and then open and close it several times
before installation.