Burkert 2300 - Page 39

39
Maintenance, cleaning
Install the actuator (with control unit) on the valve body
→ Checkthe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specic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.20”).
1
2
Pilotairport
Fig. 36: Connections
Tightening torques of valve body / nipples
DN Tightening torques [Nm]
15 45 ±3
20 50 ±3
25 60 ±3
32
65 ±3
40
50 70 ±3
65 100 ±3
Tab. 20: Tightening torques of valve body / nipples
Ifthepositionofthepilotairportsforinstallationofthe
hosesisunfavorable,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
Type 2300