VAT 651 Series - Operation Under Increased Temperature; Compressed Air Pressure Drop Behavior

OPERATION
Series
651
70/99 Edition 2014-07-10 605451EC
5.9 Operation under increased temperature
CAUTION
Hot valve
Heated valve may result in minor or moderate injury.
Do not touch valve and heating device during operation. Once heating is switched off
(valve and system) await until the valve is cooled down complete before doing any
work.
This valve may be operated in the temperature range mentioned in chapter
«Technical data».
5.10 Behavior In case of compressed air pressure drop
Valve position
before
pressure drop:
Reaction of
valve:
Valve closed Valve remains closed.
Valve open or in any
intermediate position
Sealing ring moves down and blocks the pendulum plate at the current
position.
Refer to chapter: «Troubleshooting» for details.