Burkert Type 2105 - Manual (Page 8)

8
Technical data
6.2 function
Spring force (CFA) or pneumatic pilot pressure (CFB and CFI)
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)
Warning!
for control function I – danger if pilot pressure fails!
For control function I (CFI) control and resetting occur pneumatically.
If the pressure fails, no defined position is reached.
▶ To ensure a controlled restart, first pressurize the product with
pilot pressure, then switch on the medium.
CFA
P
A
Closed by spring force in rest position.
CFB
P
A
Opened by spring force in rest position.
CFI
P
A
Actuating function via reciprocal
pressurization.
7 Technical DaTa
Warning!
risk of injury from high pressure!
Important product-specific technical specifications are indicated
on the type label.
▶ Observe permitted pressure range on the type label of the product.
7.1 conformity
Type 2103, 2104 and 2105 conforms with the EC Directives according
to the EC Declaration of Conformity.
7.2 standards
The applied standards, which verify conformity with the EC Direc-
tives, can be found on the EC-Type Examination Certificate and / or
the EC Declaration of Conformity.
7.3 Type label
Example:
00175139
2103 A 20M PTFE VS
Tamb 0°C - +60°C
Tmed xxx°C - +130°C
Pilot 4,8-10bar
Pmed 10,0bar
Da=26,9 s=1,6 W3ZLT
CE
Fig. 4: Example of type label
english
Type 2103, 2104, 2105