6 | P a g e
Max. tightening
torque per screw
(Nm)
An opening/closing functional test must be performed in
the end. The instruction manual of the drive must be
followed.
It must be possible to open and close
valves with hand wheel using normal manual force.
When connecting the drive, follow the
instruction manual of the drive manufacturer:
the drive must correctly move the valve
to the OPEN and CLOSED positions using the
corresponding control signals.
5. For the E2 Valve System 2000, the instruction manual supplied with the System 2000 Socket
must be observed for pipe connections.
6. For E2 Valves with PE Spigot Ends, follow the processing instructions of the corresponding
pipe manufacturer for pipe connections.
7. If the pipeline has to be flushed clean, the valve must be opened 100 %.
Valves that are supplied with drives by Hawle are correctly adjusted for their end
positions from the factory. This setting should not be changed as long as the valve is
functioning properly.
Only for valves with electric drive:
It must be ensured that the drive is deactivated when closing by the signal of the
torque switch.
It must be ensured that the drive is deactivated when opening by the signal of the limit
switch.
The signal of a torque switch should be used within the final stop area for fault
messages. Too high forces may damage the valve.
Further information is provided in the instruction manual of the electric drive.
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