General information, Structure and function – Burkert Type 2301 User Manual
Page 6
6
General Information
Type 2301
5. General informaTion
5.1. contact addresses
germany
Bürkert Fluid Control Systems
Sales Centre
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail: [email protected]
international
Contact addresses are found on the Internet under:
5.2. Warranty
The warranty is only valid if the device is used as authorized in accor-
dance with the specified application conditions.
5.3. information on the internet
The operating instructions and data sheets for Type 2301 can be found
6. sTrucTure anD funcTion
The globe control valve Type 2301 can be operated only in
combination with the following control units:
Positioner Type 8692, 8694, 8696 and 8792
Process controller Type 8693 and 8793
6.1. structure
The valve seats are screwed in. A reduction in the orifices of the seats
can be achieved by simply exchanging the threaded seats. The flow
direction is always below seat.
6.2. function
The seat of the valve is always closed against the medium flow.
Spring force (CFA) or pneumatic pilot pressure (CFB and CFI) gen-
erates the closing force on the control cone. 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 control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
• To ensure a controlled restart, first pressurize the device with pilot
pressure, then switch on the medium.
A
P
A
Normally closed by spring action.
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