Burkert Type 2301 - Manual (Page 10)

10
Structure and function
6 sTrucTure anD funcTiOn
The operation of the globe control valve Type 2301 is pos-
sible only in combination with an control unit.
Possible control units are:
Positioner Type 8692, 8694 and 8696
Process controller Type 8693
6.1 structure
The globe control valve consists of a pneumatically operated piston
actuator, a control cone and a 2/2-way globe body.
Via a dowel pin, the control cone is modularly coupled to the
actuator spindle for quick changeovers.
For the body, almost any line connections are possible.
A threaded port, a welded end and a flange are offered as a standard
version.
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.
The description of the control function (CF) can be found in
chapter entitled “6.2.1 Control functions (CF)”
.
Actuator cover
Actuator body
Interface actuator/body with wrench flat
Globe body
Line connection
Flow direction arrow or numbers for
indicating the direction of flow
Exhaust air port for CFA, CFB
Pilot air port for CFI
Pilot air port for CFA, CFB, CFI
2
1
Fig. 1: Globe control valve Type 2301, structure and description
english
Type 2301