Bardiani Valvole BBZPPG, Инструкция по эксплуатации и обслуживанию

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A
B
6 Operation
EN-IST-BBZPPG-0423
6 Operation
1. VALVE INSPECTION BEFORE OPERATION:
- Supply air to the actuator:
- Power the valve (via the control unit);
- Open and close the valve several times;
- Check that the valve works correctly and accurately.
A = Upward movement of the valve member
B = Downward movement of the valve member
In single acting valves there is only one of the aforementioned
commands.
CAUTION!
Hand crushing hazard. During operation there is a risk of crushing
inside the valve body and in the area between the actuator and the
valve body.
Never touch the moving parts if the actuator is supplied with
complessed air
2. DUAL FUNCTION OF THE VALVE CYLINDER:
Depending on how the valve cylinder is turned and installed, operation
will be in normally open or normally closed mode.
Normally closed Normally open