Function; Control Functions - bürkert 2030 Bedienungsanleitung

7.1.4 y-valve type 2037
Transparent cap
with position indicator
Actuator cover
Actuator body
Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Diaphragm socket
Y-valve body
Port connection
Fig. 11: Structure and description type 2037
14
english
Type 2030, 2031, 2031 K, 2032,
StructureandFunction
7.2

function

Spring force (CFA) or pneumatic control pressure (CFB and CFI) gen-
erates the closing force on the diaphragm pressure piece. The force
is transferred via a spindle which is connected to the actuator piston
and the valve is opened and closed.
7.2.1 control functions
control function a (cfa)
Closed by spring force in rest position
control function B (cfB)
Opened by spring force in rest position
control function I (cfI)
Double-acting actuator without spring
2033, 2037
A
P
B
P
A
P