Burkert Type 6521 Benutzerhandbuch
Seite 4
Intended Use
Observe the instructions and operating conditions given
in
this operating manual and the admissible data as specifi ed
in the “Technical Data” of this manual, in the data sheet and on
the rating plate so that the device functions correctly and remains
serviceable in the long term.
Failure to observe this information and unauthorised inference with
the device releases us from all liability and voids the guarantees
applicable to the devices and accessories!
The device serves exclusively as a 3/2-way, or 5/2-way solenoid valve
for the admissible media specifi ed in this manual. Use in any other way
does not constitute an intended use. Bürkert accepts no liability for any
damage or injury resulting from such use. The user bears all risks.
WARNING!
When planning the applications for device and
during operation, observe the relevant generally ack-
nowledged safety engineering rules. Take suita-ble
measures to prevent unintentional operation or in-
admissible damage. Note that lines and valves must
not be loosened on pressurised systems. Always
switch off the power before opening the system!
DANGER!
Work on the valve may only be carried out by specia-
list personnel using appropriate tools!
DANGER!
In potentially explosive areas the equipment may
only be operated using suitable, intrinsically safe
operating equipment.
WARNING!
Risk of injury! The coil may become very hot during
continuous operation.
WARNING!
Pneumatic amplifi er and terminal box must not be
disassembled in the fi eld!
The valve may only be repaired in the factory!
Technical Data Type 6521 EEx i
Technical Data Type 6521 EEx i
System
Technical amendments reserved.
Referenced Documents
Declaration of Conformity PTB 01 ATEX 2194 X
for piezo valve type 6115 for ignition protection type
EEx ia IIC T6
Possibel Methods of Operation of Type 6521
C
H
C 3/2-way valve,
pilot controlled, output 2 depressu-
rised at zero current
On the 3/2-way Namur
please observe the modifi ed pin
assignment (see table)
H 5/2-way valve, pilot controlled,
pressure port 1 connected to
output 2 at zero current, output 4
depressurised
Medium
Compressed air non oiled,
instrument
air
Neutral
gasses
Flow rate QNn value
1370 l/min
Pressure range
1.2 ... 7 bar
Operating voltage
24 V (+15 % / -10 %)
Protection class
IP
65
Protection class
3 according to EN 50178
Ignition protection type
EEx ia IIC T6
Please observe specifi cations in the data sheet and on the rating
plate!
Housing and gasket materials
Terminal box:
Aluminium, hard-anodized
Pneumatic amplifi er:
Aluminium, powder-coated
Screws:
Stainless steel
Piezo valve seal:
FKM, NBR
Ambient Conditions
Ambient temperature
-25 ... +65 °C
Due to the use of high-grade materials and coatings
it is possible to use the valve outdoors and in chemical
atmospheres.
Confi gu
The 652
an integ
(piston v
Type 652
PA valve
The pist
material
malfunct
Operatio
The dev
operatin
PA valve
The safe
the Decl
Pin identifi cation
on pneum. amplifi er
5/2-way
(Namur or screw
thread connection)
Exception!
3/2-way
Namur fl ange
1
pressure (P)
exhaust air (R)
3
exhaust air (R)
pressure (P)
5
exhaust air (S)
closed
Working connections (2) and/or (4) depending on the model
either as screw thread connection g1/4 or Namur fl ange
Deliver
The deli
2 fasten
Connections for pressure and exhaust air
Niederlassungen / Branch Offi ces
Operating Instructions 6521/03_EUml_00804150
06/06/10'M
Safety
Technical Data
Technical Data
System
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Contact addresses / Kontaktadressen
Germany / Deutschland / Allemange
Bürkert Fluid Control System
Sales Centre
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail:
International
Contact addresses can be found on the internet at:
Die Kontaktadressen finden Sie im Internet unter:
Les adresses se trouvent sur internet sous :
www.burkert.com Bürkert / Company / Locations