Structure And Function; Structure; Function - Burkert 2103 Manuel D'utilisation

Structure and Function

6. sTrucTure and FuncTiOn
6.1.

structure

The piston-controlled diaphragm valve consists of a pneumatically
operated piston actuator and a 2/2-way valve body.
The actuator is manufactured from polyphenylene sulphide (PPS) /
stainless steel.
1
Pilot air port for CF A, CF B, CF I
2
Second pilot air port for CF I
and air discharge connection for CF A and CF B
Transparent cap with position indicator
Actuator cover
Actuator body
Diaphragm socket
Line connection
Diaphragm body
Fig. 1: Piston-controlled diaphragm valve, structure and
description
Type 2103
6.2.

Function

Spring force (CF A) or pneumatic pilot pressure (CF B and CF I)
generates the closing force on the diaphragm pressure piece. The
force is transferred via a spindle which is connected to the actuator
piston.
6.2.1. control functions (cF)
Control function a (CF a)
Normally closed by spring action
2(A)
1(P)
Control function B (CF B)
Normally open by spring action
2(B)
1(P)
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