Burkert 2031 - Operational Functions and Control Modes

14
Structure and Function
7.1.4 Y-valve type 2037
Transparent cap
with position indicator
Actuator cover
Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Diaphragm socket
Y-valve body
Actuator body
Port connection
Fig. 11: Structure and description type 2037
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
A
P
Control function B (CFB)
Opened by spring force in rest position
B
P
Control function I (CFI)
Double-acting actuator without spring
P
A
english
Type 2030, 2031, 2031 K, 2032,
2033, 2037