5 Installation at Site
19 of 38
ECOLINE GT 40
7367.8/06-EN
5.5 Valves with actuator
WARNING
Impermissible loads resulting from operating conditions, add-on parts and valve-
mounted components, e.g. actuators
Leakage from or rupture of the valve body!
▷
Lay the piping in such a way that detrimental thrust forces and bending forces
are kept away from the valve body.
▷
Additional loads, e.g. traffic, wind or earthquakes are not taken into account
for standard variants; these require a separate design.
▷
Support the valve including add-on parts and valve-mounted components.
Electric actuators
DANGER
Unqualified personnel performing work on valves with actuator
Danger of death from electric shock!
▷
Ensure that connection to the power supply and the process control system is
performed by a trained electrician.
▷
Observe regulations IEC 60364 and, for explosion-proof models, .
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷
Observe the technical specifications of the local energy supply companies.
CAUTION
Change of limit switch points
Impairment of the functional reliability!
Damage to the actuator!
▷
Never change the pre-set limit switch points.
Mounted actuators are factory-set and ready for operation.
Electric actuators are factory-set ready for operation and wired as follows:
▪
Valve CLOSED: travel-dependent
▪
Valve OPEN: travel-dependent
The circuit diagrams are located in the terminal boxes.
Depending on the mass to be accelerated, electric actuators may be subject to a
corresponding overtravel effect. Take into account this overtravel effect when setting
the actuator.
NOTE
If the valves are fitted with actuators, ensure that the actuator's operating manual
is also observed.
