Burkert Type 2300 - Manual (Page 8)

8
Product description
5.3. Properties
• Direct installation of the positioners Type 8692 / 8694 / 8696 or
the process controller Type 8693.
• High tightness by self-adjusting packing glands (spindle sealing
element).
• Closes tightly when using the PTFE control cone.
• High flow values by the streamlined valve body made of stainless
steel.
• Simple and fast replacement of the control cone.
• Actuator can be rotated steplessly through 360°.
• Maintenance-free under normal conditions.
5.3.1. Technical features
• Characteristic: modified equal-percentage flow characteristic.
• Theoretical setting ratio (Kv
S
/ Kv
0
) 50:1; alternatively, other setting
ratios can be realized.
• Kv
R
value, i.e. the smallest Kv value at which the angularity tol-
erance according to DIN IEC 534-2-4 is still maintained:
≤ DN20 Kv
R
at 10 % of the stroke
> DN20 Kv
R
at 5 % of the stroke
5.3.2. Options
Control unit: Depending on the requirement, control units in various
designs are available.
• Positioner Type 8692, 8694 and 8696
• Process controller Type 8693
5.3.3. Device versions
Pilot pressure
Designs with lower pilot pressure (reduced spring force) are
available on request.
Contact your Bürkert sales office or our Sales Centre.
E-mail: [email protected]
Actuator sizes
Depending on the orifice, the angle-seat control valve is available for
the following actuator sizes:
Orifice DN Available actuator size ø [mm]
15 50 70
-
-
20 50 70
25 50 70 90
32
-
70 90
40
-
90 130
50 90 130
65 - 130
Tab. 1: Actuator sizes
english
Type 2300