Burkert 2301 Series, Operating Instructions Manual, Page: 9 / 48

9
Structure and function
5.4.2 Device variants
Actuator sizes
The globe control valve is available for the following actuator
sizes, depending on the DN:
Housing size DN Available actuator size ø [mm]
15 50 70 -
-
20 50 70 90
25 50 70 90
32
-
90 130
40 90 130
50 90 130
65
-
130
80 130
100 130
Tab. 1: Actuator sizes
5.5 Intended area of application
Observe the maximum pressure and temperature range
on the type label!
• Neutral gases and liquids up to 25 bar.
• Vapour up to 230 °C for steel and PEEK valve seat seal (see
chapter “7.4.2”).
Vapour up to 130 °C for PTFE valve seat seal.
Hot water up to 200 °C for steel and PEEK valve seat seal (see
chapter “7.4.2”).
• Aggressive media
6 STRUCTURE AND FUNCTION
The Type 2301 globe control valve can only be used in
combination with a 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.
The control cone is modularly connected to the actuator spindle
via a spring-type straight pin, and can thus be quickly replaced.
Nearly all line connections are possible for the body. Bushing,
welded connection and flange are offered as the standard device.
The valve seats are screwed in. Reduced seat sizes are easy to
achieve by replacing the screwed-in valve seats. The flow direction
is always below the valve seat.
The description of the control functions (CF) can be
found in chapter “6.2.1 Control functions (CF)” .
Type 2301
English