4
4 KH 70 en
3
ASSEMBLY
THE KNIFE GATE VALVE COMPLIES WITH THE FOLLOWING:
Machinery Directive:
DIR 2006/42/EC (MACHINERY)
Pressure Equipment Directive:
DIR 97/23/EC (PED) ART.3, P.3
Potential Explosive Atmospheres Directive (optional):
DIR 94/9/CE (ATEX) CAT.3 ZONE 2
and 22 GD..
The knife gate Valve complies with the Directive
on Equipment and Protective Systems for
Potentially Explosive Atmospheres. In these
cases the logo will appear on the identification label. This
label shows the exact classification of the zone in which the
valve can be used. The user is responsible for its use in any
other zone.
3.1
Handling
When handling the equipment please pay special attention
to the following points:
SAFETY WARNING:
Before handling the valve check
that the crane to be used is capable of bearing the
valve installation’s weight.
? Do not lift the valve or hold it by the actuator. Lift-
ing the valve by the actuator can lead to operating
problems as it is not designed to withstand the
valve’s weight.
? Do not lift the valve by holding it in the flow pas-
sage area. The valve’s seal is located in this area. If the
valve is held and lifted by this area it can damage the
surface and the seal and lead to leakage problems
whilst the valve is operating.
? To prevent damage, especially to the anticorrosive
protection, it is recommended to use soft straps to
lift the knife gate valves. These straps must be fitted
around the top of body.
? Packing in wooden boxes: If the equipment is
packed in wooden boxes these must be provided
with clearly marked holding areas where the slings
will be placed when securing them. In the event that
two or more valves are packed together, separation
and securing elements must be provided between
them to prevent possible movements, knocks and
friction during transport. When storing two or more
valves in the same box you must ensure they are cor-
rectly supported to prevent deformations. In the
case of dispatches by sea we recommend the use of
vacuum bags inside the boxes to protect the equip-
ment from contact with sea water.
Pay special attention to maintaining the correct lev-
elling of the valves during loading and unloading as
well as during transport to prevent deformations in
the equipment. For this purpose we recommend the
use of mounts or trestles.
3.2
Testing the Valve
We recommend that the valve body be pressure tested
after the valve has been assembled.
The pressure test should be carried out in accordance with
an applicable standard using the pressure rating required
by the pressure class or flange drilling of the valve.
3.3
Installation
In order to avoid personal harm and other type of damage
(to the facilities, the valve, etc.) please follow these
instructions:
The staff responsible for the installation or operation
of the equipment must be qualified and trained.
Use suitable Personal Protective Equipment (PPE)
(gloves, safety boots, goggles…).
Shut off all lines that affect the valve and put up a
warning sign to inform about the work being per-
formed.
Completely isolate the valve from the whole process.
Depressurise the process.
Drain all the line’s fluid through the valve.
Use hand tools not electric tools during the installa-
tion and maintenance, in accordance with EN13463‐
1(15).
Before installation, inspect the valve to ensure no damage
has occurred during transport or storage. Make sure that
the inside of the valve’s body and, in particular the seal area,
are clean. Inspect the installation’s pipes and the flanges to
make sure they are clean.
3.4
Aspects to be considered during
assembly
Always install the valve in the right direction in
regards to the flow in the pipe. If the valve is bi‐direc-
tional, the direction of the fluid does not matter, it
works correctly in both directions.
Special care must be taken to respect the correct dis-
tance (gap) between the flanges and ensure they are
correctly aligned and parallel (Fig. 1).
Fig. 1
CAUTION:
Pressure testing should be carried out using equipent
conforming to the correct pressure class!
