Type 2000
Installation
22
7 INSTALLATION
7.1 Safety instructions installation
DANGER!
Risk of injury from high pressure and discharge of medium.
▶ Before working on the device or system, switch off the pressure. Vent or drain lines.
WARNING!
Risk of injury due to improper installation.
▶ Only trained technicians may perform installations.
▶ Perform installations with suitable tools only.
WARNING!
Risk of injury due to unintentional activation of the system and uncontrolled restart.
▶ Secure plant to prevent unintentional activation..
▶ Ensure that the plant starts up in a controlled manner only.
DANGER!
For control function I: Danger due to the control pressure failing.
If the control pressure fails, the valve remains in an undefined position.
▶ For a controlled restart, pressurize the device with control pressure and then connect the medium.
WARNING!
Risk of injury due to moving parts.
▶ Do not reach into openings in the device.
CAUTION!
Risk of injury from heavy device.
During transportation or installation work, a heavy device may fall down and cause injuries.
▶ Transport, install and remove heavy device with the aid of a second person only.
▶ Use suitable tools.
WARNING!
Valve seat leaking when control pressure is too low or medium pressure is too high.
If control pressure is too low for control function B and control function I or medium pressure is too high,
the valve seat may leak.
▶ Observe values for minimum control pressure and maximum medium pressure.
DANGER!
Risk of injury from rupturing lines and device when flow direction above the seat.
A pressure surge of liquid media may cause the lines and device to rupture.
▶ Do not use valves with flow direction above the seat for liquid media.
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