Burkert Type 2105 - Manual (Page 7)

7
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.
6.1.1 2/2-way valve type 2103
Transparent cap with position indicator
Actuator cover
Actuator body
Diaphragm socket
Line connection
Valve body
Second pilot air port for CFI
and air discharge connection for CFA and CFB
Pilot air port for CFA, CFB, CFI
2
1
Fig. 1: Piston-controlled diaphragm valve, structure and description
6.1.2 T-valve type 2104
Transparent cap with
position indicator
Actuator cover
Actuator body
Diaphragm socket
Diaphragm body
Line connection
Second pilot air port for CFI
and air discharge con-
nection for CFA and CFB
Pilot air port for CFA,
CFB, CFI
2
1
Mechanical interface
Fig. 2: Structure and description type 2104
6.1.3 Tank bottom valve type 2105
Transparent cap with
position indicator
Actuator body
Actuator cover
Tank bottom valve with
welding flange
Diaphragm socket
Second pilot air port for CFI
and air discharge connection for
CFA and CFB
Pilot air port for CFA,
CFB, CFI
2
1
Mechanical
interface
Fig. 3: Structure and description type 2105
english
Type 2103, 2104, 2105