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Fluid Control Systems
Type 5281
Operating instructions
ENGLISH
To ensure that the device will function correctly, and have a
long service life, please comply with the information in these
Operating Instructions, as well as with the application condi-
tions and permissible data given in the Type 5281 data sheet:
• When planning the application of the device, and during its operation,
observe the general technical rules!
• Take suitable measures to prevent unintentional operation or
impermissible impairment!
• Note that lines and valves must not be unscrewed from systems that
are under pressure!
• Always switch off the voltage supply before working on the system!
• If these instructions are ignored, no liability will be accepted from our
side, and the guarantee on the device and on accessories will also
become invalid!
• Warning! The surface of the electromagnet can become very hot
during continuous operation. Danger of injury!
Modular, servo-assisted flow valve with servo-diaphragm and
push-over coil
• coil can be locked in 4 x 90° steps, in between which it can be freely
positioned around the armature guide tube
• tightening torque of the fixing screws: max. 5 Nm
• can be mounted in any position, preferably with the magnetic system
at the top
• valve operation A: service port normally closed
• media: neutral fluids and gases which do not attack the valve body
and seal or diaphragm materials
• seal material: refer to rating plate following the nominal diameter
(NBR, EPDM, FPM)
• permissible temperature range of the medium: -10 °C to 100 °C
• max. ambient temperature: + 55°
• the port connections are compatible with the previous model 281/291
SPARE PARTS
When ordering replacements parts, please also quote the order
number of your complete appliance in addition to the order
number of the replacement parts.
Coil kits Europe
Voltage
[V]
024 / DC
024 / 56
110 / 56
230 / 56
Coil kits N.A.F.T.A.
024 / DC
024 / 56
120 / 60
240 / 60
Coil kits A.P.A.C.
024 / DC
024 / 56
100 / 56
110 / 56
200 / 56
230 / 56
DEAR CUSTOMER
Congratulations on your purchase of this Bürkert appliance. For your
own safety, please carefully read through these operating
instructions before installing the appliance. Your local Bürkert branch
will be pleased to answer any questions you may have.
CIRCUIT FUNCTION
WW A
We reserve the right to make technical changes without
notice
© © © © © Bürkert Werke GmbH Co. All rights reserved
Read the voltage, electrical power, type of protection and
current from the rating plate!
Voltage tolerance: ±10%
• Electrical power connection: Instrument socket type 2508 to the tag
connections on the coil (protection class IP 65);
Tightening torque: 1 Nm
• When screwing down the instrument socket onto the coil, ensure that
the flat seal is well seated!
• With impulse coils, pay attention to asynchronous excitation!
Work on the valve should only be carried out by specialist staff
and with the correct tools!
• Clean the piping system before installing the valve!
• Where necessary, connect a strainer upstream to protect against
faults!
• Pay attention to the flow direction (direction of arrow).
• Seal the thread using PTFE tape!
• Ensure that there is the full diameter available at the inlets and outlets
to the valve, and that pilot channels are open!
• When tightening the pipe connections, never use the valve as a lever!
• Be careful of distortion when installing the valve body.
• Faults can be caused by soiling, short circuits and loss of power!
• Attention: Jammed coils can cause coil overheating with AC!
• In case of faults, check the port connections, voltages, type of current
and operational pressure!
Set of Wearing Parts
Pilot Control
DN
13 - 65
Power
Order no.
[W]
13 - 65
13 - 65
8
126 434 R
Valve
8
645 556 D
8
645 557 E
13
8
645 558 P
13
13
20
8
126 434 R
8
645 556 D
20
20
8
643 802 B
8
643 803 C
25
25
8
126 434 R
25
8
645 556 D
32, 40
8
645 559 Q
8
645 557 E
32, 40
8
645 560 M
32, 40
8
645 558 P
50
50
50
Sealing material
Order no.
NBR
645 561 A
FPM
645 562 B
EPDM
645 563 C
NBR
624 012 J
FPM
624 013 K
EPDM
624 014 L
NBR
624 015 M
FPM
624 016 N
EPDM
624 017 P
NBR
624 018 Y
FPM
624 019 Z
EPDM
624 020 W
NBR
624 021 K
FPM
624 022 L
EPDM
624 023 M
NBR
624 024 N
FPM
624 025 P
EPDM
624 026 Q
Type 5281
Coil Kits
Set of
Wearing
Parts Valve
BÜRKERT GERMANY
Chr.-Bürkert-Straße 13-17
Berlin
74653 Ingelfingen
Dortmund
Ph: (0 79 40) 10-0
Dresden
Fax (0 79 40) 10-204
Frankfurt
Hannover
München
Stuttgart
BÜRKERT INTERNATIONAL
A
Ph.
(01) 8 94 13 33
AUS
Ph.
(02) 96 74 61 66
B
Ph.
(03) 3 25 89 00
CDN
Ph.
(9 05) 8 47 55 66
CH
Ph.
(0 41) 7 85 66 66
CZ
Ph.
(06 41) 22 61 80
DK
Ph.
(0 44) 50 75 00
E
Ph.
(93) 3 71 08 58
ET
Ph.
(0 40) 54 27 38
F
Ph.
(01) 48 10 31 10
GB
Ph.
(0 14 53) 73 13 53
HKG
Ph.
24 80 12 02
I
Ph.
(02) 9 52 01 59
J
Ph.
(03) 32 47 34 11
KOR
Ph.
(02) 34 62 55 92
N
Ph.
(0 63) 84 44 10
MAL
Ph.
(04) 6 57 66 49
NL
Ph.
(0 34) 6 59 53 11
NZ
Ph.
(09) 5 70 25 39
P
Ph.
(01) 4 42 26 08
PL
Ph.
(0 22) 6 27 47 20
RC
Ph.
(02) 27 58 31 99
S
Ph.
(0 40) 66 45 100
SF
Ph.
(09) 5 49 70 600
SGP
Ph.
3 83 26 12
TR
Ph.
(02 32) 4 59 53 95
USA
Ph.
(9 49) 2 23 31 00
ZA
Ph.
(0 11) 3 97 29 00
Operating Instructions No. 803 312 01/99/02
Set of Wearing Parts
Pilot Control
Ph: (0 30) 67 97 17 - 0
Ph: (0 23 73) 96 81 - 0
Ph: (03 59 52) 36 30 - 0
Ph: (0 61 03) 94 14 - 0
Ph: (05 11) 9 02 76 - 0
Ph: (0 89) 82 92 28 - 0
Ph: (07 11) 4 51 10 - 0
Fax
(01) 8 94 13 00
Fax
(02) 96 74 61 67
Fax
(03) 3 25 61 61
Fax
(9 05) 8 47 90 06
Fax
(0 41) 7 85 66 33
Fax
(06 41) 22 61 81
Fax
(0 44) 50 75 75
Fax
(93) 3 71 77 44
Fax
(0 40) 54 41 65
Fax
(01) 48 91 90 93
Fax
(0 14 53) 73 13 43
Fax
24 18 19 45
Fax
(02) 9 52 90 33
Fax
(03) 32 47 34 72
Fax
(02) 34 62 55 94
Fax
(0 63) 84 44 55
Fax
(04) 6 57 21 06
Fax
(0 34) 6 56 37 17
Fax
(09) 5 70 25 73
Fax
(01) 4 42 28 08
Fax
(0 22) 6 27 47 20
Fax
(02) 27 58 24 99
Fax
(08) 7 24 60 22
Fax
(09) 5 03 12 75
Fax
3 83 26 11
Fax
(02 32) 4 59 76 94
Fax
(9 49) 2 23 31 98
Fax
(0 11) 3 97 44 28
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