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RETENTION PENSTOCK
FL SERIES
C.M.O.
Amategui
Aldea
142,
20400
Txarama
‐
Tolosa
(SPAIN)
MAN
‐
FL.ES00
Tel.
National:
902.40.80.50
Fax:
902.40.80.51
/
Tel.
International:
34.943.67.33.99
Fax:
34.943.67.24.40
http://www.cmo.es
page 7
Once
the
penstock
has
been
installed,
check
that
all
bolts,
nuts
and
anchorings
have
been
correctly
tightened.
All
CMO
penstocks
are
tested
at
its
facilities,
although
the
penstock
may
have
become
damaged
during
transport
or
assembly.
Once
installed,
it
is
very
important
to
check
that
the
penstock
works
correctly,
making
sure
that
the
flap
swivels
on
its
turning
point
without
any
difficulty,
that
it
sits
perfectly
on
the
seal
when
the
penstock
is
closed,
etc.
If
the
penstock
has
electrical
accessories
or
you
are
in
an
ATEX
zone,
earth
connections
must
be
made
once
the
penstock
is
in
place
but
before
operating
it.
If
you
are
in
an
ATEX
zone,
check
the
continuity
between
the
different
elements
of
the
penstock
(EN
12266
‐
2,
annex
B,
points
B.2.2.2.
and
B.2.3.1.).
Check
the
earth
connection
of
the
penstock.
These
FL
penstocks
do
not
have
an
actuator
system,
but
rather
are
automatic.
It
is
the
fluid
which
opens
or
closes
the
penstock.
When
the
fluid
comes
from
inside
the
pipe
to
the
outside,
it
pushes
on
the
flap
which
swivels
on
the
turning
point
and
opens
the
penstock.
The
degree
of
opening
will
be
proportional
to
the
pressure
of
the
fluid:
the
greater
the
pressure,
the
more
the
penstock
will
open
(fig.
9).
When
the
fluid
comes
from
the
extractor
towards
the
piping,
it
pushes
the
flap
against
the
body,
pressing
on
the
elastomer
seal
in
order
to
achieve
sealtight
integrity.
The
greater
the
fluid
pressure,
the
more
the
flap
presses
against
the
body,
thus
ensuring
sealtight
integrity
at
all
times
(fig.
10).
ACTUATOR
fig.
9
fig.
10
Gate
open
Gate
closed