11
UK
11.5 Adjustment of operating position
Attention! For a safe, perfect and fast adjustment of the
operating position, we recommend to use two
separate FG flanges.
11.5.1 Adjustment of operating position with FG flanges
(flanges see RN 268.22-1)
Install the ball seals as described in 11.3. Assemble the valve as
described in 11.4.
Turn the ball into its exact open position.
a. Control actuator (15) with pneumatic air (min. 6 bar) and place
it on the yoke (17).
b. Screw in screws item 16, but do not tigthen them.
Danger! Do not reach into the open valve after installation
of the actuator. Risk of injury by sudden operation
of the valve.
c. Screw down FG flanges at the housing. The ball must be in
its exact open position during this procedure.
d. Release both screws item 3 of the shaft bearing (ball centers
between the seals) and retighten them.
e. Slightly turn the actuator in anticlockwise direction to adjust the
play in the connecting parts.
!!! The ball must keep its exact open position during this procedure !!!
Danger! Do not reach into the open valve.
Risk of injury by sudden operation of the valve.
f. At first, tighten the screws item 18 and then item 16. Operate the
turning actuator several times to check the operating accuracy
of the ball.
g. Shut off the air supply to the turning actuator and dismantle
the FG flanges.
h. Insert the valve in closed position between the flanges into the
pipeline and fasten it with the screws.
Tightening torque: M8 Md = 16 Nm
M10 Md = 40 Nm.
i. Connect pneumatic air line with turning actuator.
j. Connect cleaning line.
k. Attach valve position indicators.
11. Service Instructions
Double - Seat Ball Valve DELTA DKRT 2
Tank Outlet Valve
Operating Manual : Rev. 4
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