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3.4 Valve function
Crushing and cutting hazard.
Do not put your hands or fingers between the moving parts when the valve cycles. Do not energize the actuator before the
valve is properly attached to the pipeline.
Disconnect and de-energize the actuator before installation and maintenance work.
Note the dangerous places (see Figure 7 and Figure 8)!
When the pinch valve closes, two pinch bars, moved by the actuator,
squeeze the sleeve, closing on the centre line. When the valve is fully
closed, the actuator is raised one half of the valve diameter.
The actuator raises in all models (PV, PVE and PVE/S) 0.5 x valve
nominal diameter (measure X).
In the open model the space between the pinch bars, the space
between the upper pinch bar and fixing plate of the actuator and the
space below the lower pinch bar.
In the enclosed model the space between the valve body and the
fixing plate of the actuator and the ends of the guide bars of lower
pinch bar below the valve body.
Regarding the actuators, follow the instructions of the
manufacturer.
Note the possible remote control of automatic valves
and turn it off before starting maintenance.
3.5 Recycling and disposal
Most valve parts can be recycled. Separate recycling and
disposal instructions are available from the manufacturer. A
valve can also be returned to the manufacturer for recycling
and disposal for a fee.
4PV70EN - 5/2023
WARNING!
Figure 5.
PV open model
Figure 6.
PVE enclosed model
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