Burkert 2001 Notice D'utilisation page 7

Control Pressure
The max. admissible control pressure is 10 bar.
• Flow below seat (fluid flow against closing
action of the valve):
– min. control pressure for control function A:
DN 13/20
p [bar] 3,9
– for the required control pressure for control
functions B and I, see flow chart below:
Control pressure (bar)
• Flow above seat (fluid flow into closing action
of valve):
– for required control pressure CFA, see flow
chart below.
Control pressure (bar)
Electrical connection of pilot valve
Observe voltage and current type as specified
on the type label, voltage tolerance ± 10%.
Specifications in the data sheet and the
operating instructions of the pilot valve must be
observed.
A
B
A
B I
P P
Spare parts
One valve or seal kit can be ordered as wear
parts (see drawing).
Seal kit of PA-actuator
Actuator
25
4,2 DN 13/20
DN 25
Valve kit with gunmetal body with
PTFE/FPM seal
DN
13
20
25
Valve kit with stainless steel body with
PTFE/FPM seal
DN
13
20
25
A
Type 2001
P
Gunm. body Stainl. body
Order-No. Order-No.
011 656 Z 011 668 D
011 659 C 011 675 U
PTFE FPM
Order-No. Order-No.
011 499 M 011 526 F
011 501 P 011 533 E
011 518 P 011 534 F
PTFE FPM
Order-No. Order-No.
011 550 T 011 604 W
011 559 Y 011 616 R
011 591 H 011 654 X
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