Safety
Residual Risk
18
Operating Instructions · VARIVENT
®
Mixproof Valve L with Lifting Actuator, suitable for pigging operation
Edition 26/08/2016
Residual Risk
Hazard Areas
Please observe the following notes:
•
In the event of malfunctions, shut down the valve (disconnect from the power and air
supply) and secure it against being used.
•
Never reach into the lantern (9) or the valve housing (415) when the valve is
switching. Fingers can be crushed or cut off.
•
On a spring-closing valve there is danger of injury when the clamp joint (46) are
opened as the released spring pretension will suddenly lift the actuator. Therefore,
release the spring tension before detaching the clamp joint (46) by supplying the
actuator (A) with compressed air.
•
Before starting any service, maintenance or repair work, disconnect the valve from
the power supply and secure it against inadvertently being switched back on again.
•
Only allow a qualified electrician to carry out any work on the electrical power
supply.
•
Check the electrical equipment of the valve at regular intervals. Immediately remedy
loose connections and molten cables.
•
If work on live parts cannot be avoided, call in a second person, who can operate
the main switch in case of an emergency.
•
The housing sockets have very sharp edges. When transporting and assembling the
valve be sure to wear suitable protective gloves.
