Series PA/F, PA/S
Page
11
9510-010-en
Revision 18
TM 9549
Edition 11/2018
7.3 Sampling (Standard)
♦
Screw bottle into the bottle connection
226
.
♦
Check travel set on the star knob
963/1
.
♦
Lever
203
is in the dead man's position.
♦
For sampling, lock lever in the top groove.
♦
If it is requested that the lever is firmly locked, drill
through the middle hole and insert an additional pin
into the middle hole.
CAUTION!
Sampling may also take place acci-
dentally.
♦
Press in direction of valve.
♦
Sampling can take place.
A lock is available from Richter as an option.
A device, screw fitting
917
for example, for the riskfree
discharge of the medium must be connected to the
venting connection. Sealing plugs are not allowed
because this results in overpressure in the bottle.
7.4 Shutdown
The local regulations are to be observed when disman-
tling the valve.
Prior to undoing the flange connection
ensure, that the plant is depressurised
and emptied.
Prior to starting any repair work, the valve
is to be thoroughly cleaned. Medium resi-
due may be in the valve even if it has been
properly drained and flushed.
After dismantling, immediately protect the valve flanges
against mechanical damage by using flange caps. See
also
Section 6.1
.
Make sure that a remote-controlled actuator cannot be
switched on by accident.
8
Malfunctions
♦
Flange connection ball valve/pipe is leaking
Retighten the flange screws to a tightening torque
according to
Section 1.2
. If this does not remedy
the leak, the recommended torques may be ex-
ceeded by 10%.
If this also fails to stop the leak, dismantle and in-
spect the valve.
♦
Flange connection body/seat or body/cover is leak-
ing
Retighten body screws. See paragraph "Flange
connection ball valve/pipe is leaking".
♦
Packing is leaking
Bellows leaking.
Retighten safety packing and switch off plant as
quickly as possible and isolate pipe section with
valve.
♦
Valve does not close tight
Loosen lock nut under the star grip and close the
valve by means of the star grip.
