Torex VDC Series - Residual Risks; Mechanical Hazards; Risks Due to Electricity; Risks Due to High Temperatures

40 2 - Operation and maintenance
TO320 M - EN - Ed. 04.09
RESIDUAL RISKS18.
Although certain risks have been eliminated at the origin in the VDC design and construction phase,
certain residual risks still persist for which warning signs and instructions are required for the opera-
tors and special measures have to be adopted in the use of the machine.
Mechanical hazards18.1
Stability
Handling and lifting of the valve must be done according to the indications given in the Manual (Chap.2
Section “TRANSPORT-WEIGHTS-LIFTING).
Risks due to surfaces, sharp edges and corners
Particularly in the maintenance steps, it is necessary to use personal protection equipment (cut-proof
gloves, protective clothing, safety footwear), to avoid injury due to sharp and cutting surfaces and
edges of certain components. (See Manual Chap.2 Section “WARNINGS” and “MAINTENANCE”)..
Prevention of risks due to moving parts.
In the correct installation of the valve, all accesses to moving parts must be closed: in this regard,
refer to the Manual Chap.2 Sect.”WARNINGS” and “INSTALLATION”.
In the maintenance steps or in case of actions which may make the moving parts accessible, refer
to the procedures described in the Manual (Chap.2 Sect. ”MAINTENANCE”).
Risks due to Electricity18.2
Make the motor connections according to the indications given in the Manual (Chap.2 Sect. ”ELEC-
TRICAL CONNECTIONS”).
The VDC is supplied with an electric motor without a power cables for connection to the mains.
During machine commissioning operations, the operator must take care to connect the cables cor-
rectly, carrying out the operations in complete safety as envisaged by the standards (CEI EN 60204-1)
regarding the use of electricity. It is important to ensure that the valve body is connected to the plant’s
earth circuit to avoid risk of electrostatic discharges. The earthing connection must be made by the
installer.
Risks due to high temperatures18.3
During the course of normal operations or maintenance or cleaning, the operator can come in contact
with parts having temperature exceeding 60°C, with the machine stopped.
The temperature level is, however, greatly conditioned by the valve application conditions (power
absorbed by the motor, material conveyed, work cycle): moreover, the valve running in phases may
involve higher temperatures.