Burkert 2301 Manuel D'utilisation page 31

Maintenance, Cleaning
install the actuator (with control unit) on the valve body
→
Check the graphite seal and if required, replace it.
Warning!
danger if incorrect lubricants used!
Unsuitable lubricant may contaminate the medium. In oxygen
applications there is a risk of an explosion!
• In specific applications, e.g. oxygen or analysis applications, use
appropriately authorised lubricants only.
→
Grease nipple thread before re-installing the actuator (e.g. with
Klüber paste UH1 96-402 from Klüber).
note!
damage to the seat seal or the seat contour!
• When installing the actuator, ensure that the valve is in open
position.
→
control function a:
Without unit control: pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
With unit control: open the valve according to the operating
instructions for the control unit.
→
Screw actuator into the valve body.
Observe tightening torque (see „Tab. 12: Tightening torques of
valve body / nipples").
Type 2301
Pilot air port
Fig. 18: Connections
tightening torques of valve body / nipples
dn tightening torques [nm]
13/15 45 ±3
20 50 ±3
25 60 ±3
32
65 ±3
40
50 70 ±3
Tab. 12: Tightening torques of valve body / nipples
If the position of the pilot air ports for installation of the
hoses is unfavourable, these can be aligned steplessly by
rotating the actuator through 360°.
The procedure is described in the chapter entitled „8.3.4.
Rotating the actuator".
english
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