Burkert Type 8697 - Manual (Page 10)

10
Technical data
6.4. Operating conditions
Warning!
solar radiation and temperature fluctuations may cause mal-
functions or leaks.
▶ If the device is used outdoors, do not expose it unprotected to
the weather conditions.
▶ Ensure that the permitted ambient temperature does not exceed
the maximum value or drop below the minimum value.
Ambient temperature
without pilot valve (feedback head) -20 °C – +60 °C
with pilot valve (control head) -10 °C – +55 °C
with ATEX approval see ATEX additional
instructions
Degree of protection IP65 / IP67 according to EN 60529
(only if cables, plugs and sockets have been
connected correctly and in compliance with
the exhaust air concept in chapter “8.2.
Installing the process valve”).
6.5. mechanical data
Dimensions see data sheet
Body material external PPS, PC
Sealing material external EPDM
internal FKM
Stroke range of valve spindle Micro switch 4 – 36 mm
Proximity switch 2 – 36 mm
6.6. Type label (example)
8697 24 V/DC
single act Pilot 0,6
Pmax 7 bar 2 sw.mec.
Tamb -10°C - +55°C
S/N 001000
00185114
D-74653
Ingelfingen
W14UN
ce
Identification number
Type - Control
Nominal pressure - limit switch
Control function - pilot valve
Bar code
Serial number - CE mark
Max. ambient temperature
Fig. 4: Example of type label
english
Type 8697