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Installation, Operating & Maintenance Instructions
Series 48.2, DN 63-160 (I.D. 2 ½ - 6")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected]
www.vatvalve.com
273777ED
2007-03-30
9/19
3 Operation
3.1 Normal
operation
Opening of closed valve
- without
solenoid:
•
before valve is opened
⎯
supply air pressure in closing direction
•
air supply to connection «open»
•
air release through connection «closed»
- with standard solenoid:
•
supply specified control voltage to the coil
- with impulse solenoid:
•
supply an impulse of specified control voltage to the coil for opening (pulse duration min. 50 ms)
-
with radiation resistant solenoid:
•
supply specified control voltage to the solenoid coil „open“ and coil „close“.