2 Safety
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8417.8/20-EN
2.7 Safety information for maintenance, inspection and installation
▪
Modifications or alterations of the valve require the manufacturer's prior
consent.
▪
Use only original spare parts or parts/components authorised by the
manufacturer. The use of other parts/components can invalidate any liability of
the manufacturer for resulting damage.
▪
The operator ensures that maintenance, inspection and installation are
performed by authorised, qualified specialist personnel who are thoroughly
familiar with the manual.
▪
Carry out work on the valve during standstill only.
▪
The valve body must have cooled down to ambient temperature.
▪
The pressure in the valve body must have been released and the valve must have
been drained.
▪
When taking the valve out of service always adhere to the procedure described
in the manual.
▪
The actuator must be disconnected from the external source of energy.
▪
Decontaminate valves which handle fluids posing a health hazard.
▪
Protect the valve body and the actuating element from any impacts.
▪
As soon as the work has been completed, re-install and re-activate any safety-
relevant devices and protective devices. Before returning the product to service,
observe all instructions on commissioning.
2.8 Unauthorised modes of operation
▪
The valve is operated outside the limits stated in the operating manual.
▪
The valve is not operated in accordance with the intended use.
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