21
5. Operation
The closure valve makes it possible to ea-
sily close off the outlet pressure pipe before
doing any type of service work on the lifting
station – for example servicing / cleaning
the integrated non-return flap inside the lif-
ting station’s outlet.
During normal lifting station operation, the
closure valve should be in the open positi-
on (red handle (B) in the up position and the
safety lock (A) locked into place (Ill. 12).
To close the closure valve first lower the sa-
fety lock (A) 90 degrees to the horizontal po-
sition (Illustration 13 Number 1).
Now push down the red closure handle
(Number 2) (a twisting motion while pus-
hing down the red handle makes this ea-
sier). Once in the down position, the red clo-
sure handle should be turned in the clock-
wise direction (Ill. 14 Number 4) so that the
base of the handle is securely locked in the
recessed plastic holders. The closure valve
now is in the closed / shut off position (Ill. 15).
To open the closure valve perform the
above steps in the reverse order. Once
open, it should be checked that the red clo-
sure handle is in the fully up position and
that the safety lock is re-clipped into place
to assure that the closure handle is not un-
intentionally closed.
ill. 12
ill. 13
ill. 14
ill. 15
B
A
