Burkert 2300 - Function

10
Structure and function
Actuatorcover
Actuatorbody
Interfaceactuator/bodywithwrench
at
Angle-seatbody
Numbersforindicatingthedirection
ofow
Portconnection
ExhaustairportforCFA,CFB
PilotairportforCFI
PilotairportforCFA,CFB,CFI
2
1
Fig. 1: Angle-seat control valve Type 2300, structure and
description
6.2 Function
Theseatofthevalveisalwaysclosedagainstthemediumow.
Springforce(CFA)orpneumaticpilotpressure(CFBandCFI)
generatestheclosingforceonthecontrolcone.Theforceis
transferredviaaspindlewhichisconnectedtotheactuator
piston.
6.2.1 Control functions (CF)
WARNING!
For control function I – Danger if pilot pressure fails!
ForcontrolfunctionIcontrolandresettingoccurpneumatically.
Ifthepressurefails,nodenedpositionisreached.
▶ Toensureacontrolledrestart,rstpressurizethedevicewith
pilotpressure,thenswitchonthemedium.
Control function A (CFA)
Normallyclosedbyspringaction.
english
Type 2300