Commission
Mounting instructions for butterfly valves
SYLAX DN 25-350
6
Before putting valve into operation, check that:
- The working conditions are compatible with the details given on the identification plate , this instruction notice and the
manufacturer
’
s details (technical data sheet, price list catalogue, advisory service).
- The indicator on the control or the handle position (disc direction), properly indicates the position of the disc.
- All the connections have been properly made (pneumatic, electrical, hydraulic).
- The valve works effectively when tried (check several times). If necessary certain adjustments may be made to the end stops by
qualified personnel.
On a new installation or after maintenance, the circuit must be rinsed with the valve completely open in order to remove solid matter
which may damage the internal parts of the valve.
During a prolonged stoppage, a change in the state of the fluid may result in damage when the installation is brought back into service
(solidification….). Establish an adequate procedure programme for cleaning the system.
Maintenance
Maintenance and repair work must be carried out by qualified personnel.
During opening, closing and testing of the valve, take care not to put hands or any other object in the area of the disc.
Manipulate the liner and the disc with gloves in order to avoid damaging them by scratches.
•
Removing the valve from the installation
The pipe must be depressurized and purged (emptied of its fluid) in order to avoid any danger to the operator. If the installation has
carried fluids which are dangerous in themselves if in contact with the outside atmosphere (inflammable, corrosive, toxic,
explosive..) it must be thoroughly cleaned to eliminate all risks.
All fluid remaining in the valve must be removed.
The temperature of the valve must be lower than 35°C to avoid all risk of burning.
If necessary, perform the operation using suitable protection (clothing, gloves, mask…).
Warning
: when used in an ATEX zone, electrostatic charges may be present inside the valve (disc, liner). These electrostatic charges
created by the flow of the fluid may present a risk of explosion. The user is responsible for taking all precautions to avoid this risk.
Place the disc at 10° from opening before removing the valve.
Where a control uses an external energy source, it is essential to isolate this source before any operation.
•
Dismantling the control from the valve.
Check the mounting position of the control before dismantling.
To reassemble, use all the original screws etc.
•
Maintenance of the valve
All spare parts must be genuine Socla.
All spare parts must be used.
The use of grease is not allowed in a silicon free environment.
Greases and silicones used must be compatible with the fluid being carried and the installation constraints.
Use
In order to guarantee the good working of the valve, we advise to carry out 1 actuation minimum per month (full opening
and closing).
In ATEX zone, valve and actuation must be cleaned regularly in order to avoid any accumulation of dusts.
The hot or cold parts of valve and actuation presenting a danger for the operator must be protected.
Do not insert fingers close to parts which are moving or between the lever and the handle during its operation.
In ATEX zone, the end of line mounting is not authorized.
Modifications, errors and printing mistakes cannot be held responsible for damages incurred. Socla reserves
the right to modify products without prior warning. All trademarks of these products are the property of the
respective companies .