bürkert 2000 Bedienungsanleitung Seite 10

Angle-Seat Valve
Repair
Stop fluid supply and control fluid supply and
reduce pressure in the pipe system, before the
device can be opened or repaired.
Control Pressure 2/2-Ways
The max. admissible control pressure for control
functions A, B and I is:
– 10 bar ANTA B, C (PA-Actuator) Ø 40 – Ø 100
– 7 bar ANTA B, C (PA-Actuator) Ø 125
– 10 bar ANTA D (PPS-Actuator) Ø 40 – Ø 80
– 7 bar ANTA D (PPS-Actuator) Ø 100 – Ø 125
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
Flow chart 1 control pressure for control function B and I (CFB, I).
10
• Flow below seat (fluid flow against closing
direction):
– min. control pressure for control function A:
ACTSIZ D40 D50 D63 D80 D100 D125
p [bar] 4,0 3,9 4,2
ACTSIZ – Actuator size
– for the required control pressure for control
functions B and I, see flow chart 1.
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
CF B, I
Fluid
pressure
(bar)
Control pressure (bar)
5,0 4,4 3,2