5 FT 70 en
5
1.8
Safety precautions
2
TRANSPORTATION, RECEPTION AND
STORAGE
Check the valve and the accompanying devices for any
damage that may have occurred during transport. Store the
valve carefully before installation, preferably indoors in a
dry place. Do not take the valve to the intended location
and do not remove the flow port protectors until the valve
is installed. The valve is delivered in the open position, with
the exception of valve packages in which the actuator
spring closes the valve.
3
INSTALLATION AND COMMISSIONING
3.1
General
Remove the flow port protectors and check that the valve is
undamaged and clean inside.
3.2
Installing in the pipeline
Flush or blow the pipeline carefully before installing the
valve. Foreign particles, such as sand or pieces of welding
electrode, will damage the plug sealing surface and seats.
The flow direction and mounting position do not place any
restrictions on operation of the valve. You should, however,
avoid installing the valve so that the stem points down-
wards because impurities travelling in the pipeline may
then enter the space between the stem and the body and
damage the packing.
Choose flange gaskets to suit the operating conditions.
Do not attempt to correct pipeline misalignment by means
of flange bolting.
Stress caused in the valve by pipeline vibration can be
reduced by supporting the pipeline properly. Reduced
vibration also helps ensure correct functioning of the posi-
tioner.
The flangeless model (DN 25-DN 50, 01"-02") can be
installed between the following pipe flanges:
EN/ISO PN 100, PN 64, PN 40, PN 25, PN 16, PN 10
ASME 600, ASME 300, ASME 150
CAUTION:
Do not exceed the valve performance limitations!
Exceeding the limitations marked on the valve may cause
damage and lead to uncontrolled pressure release. Dam-
age or personal injury may result.
CAUTION:
Do not dismantle the valve or remove it from the
pipeline while the valve is pressurized!
Dismantling or removing a pressurized valve will result in
uncontrolled pressure release. Always isolate the relevant
part of the pipeline, release the pressure from the valve
and remove the medium before dismantling the valve.
Be aware of the type of medium involved. Protect yourself
and the environment from any harmful or poisonous sub-
stances. Make sure that no medium can enter the pipeline
during valve maintenance.
Failure to do this may result in damage or personal injury.
CAUTION:
Beware of the plug movement!
Keep hands, other parts of the body, tools and other
objects out of the open flow port. Leave no foreign
objects inside the pipeline. When the valve is actuated,
the plug functions as a cutting device. The plug position
may also change when the valve is moved. Close and
detach the actuator pressure supply pipeline for valve
maintenance. Failure to do this may result in damage or
personal injury.
CAUTION:
Protect yourself from noise!
The valve may produce noise in the pipeline. The noise
level depends on the application. It can be measured or
calculated using the Metso Nelprof software. Observe the
relevant work environment regulations on noise emission.
CAUTION:
Beware of a very cold or hot valve!
The valve body may be very cold or very hot during use.
Protect yourself against cold injuries or burns.
CAUTION:
When handling the valve or the valve package, take its
weight into account!
Never lift the valve or valve package by the actuator, posi-
tioner, limit switch or their piping.
Place the lifting ropes securely around the valve body (see
Fig. 8). Damage or personal injury may result from falling
parts.
NOTE:
A pipeline equipped with a Finetrol valve may not be
cleaned with a pig!
This causes damage to the valve and the pig.
CAUTION:
When handling the valve or the valve package, bear in
mind its weight!
Fig. 8
Lifting of the valve
Correct
Wrong
