Burkert Type 8690 - Manual (Page 14)

14
Technical data
6.3. 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: 0 to +55 °C
Protection class: IP65 / IP67 according to EN 60529 (only if cables
have been connected correctly and in compliance with the exhaust
air concept in chapter “8.2. Installing the process valve”).
6.4. Type label (example)
8690 24 V/DC
single act Pilot 0,6
Pmax 7 bar 2 sw.mec.
Tamb 0°C - +55°C
S/N 001000
00185114
D-74653
Ingelfingen
W14UN
ce
Identification number
Supply voltage / Control
Nominal pressure - limit
switch
Type Control function - pilot valve
Bar code
Serial number - CE mark
Max. ambient temperature
Fig. 5: Example of type label
6.5. Mechanical data
Dimensions: see data sheet
Body material external PPS, PC
Sealing material external EPDM
internal NBR
Stroke range of valve spindle 7 - 28 mm
6.6. pneumatic data
Control medium neutral gases, air, Quality classes in accordance
with DIN ISO 8573-1
Dust content Class 5 max. particle size 40 μm,
max. particle density 10 mg/m 3
Water content Class 3 max. pressure dew point -20 °C or
min. 10 °C below the lowest operating
temperature
Oil content Class 5 max. 25 mg/m 3
Temperature range 0 to +50 °C
Pressure range 3 to 7 bar
Air output of pilot valve 250 I
N
/min
(for aeration and deaeration, Q
Nn
-value
according to definition for pressure
drop from 7 to 6 bar absolute)
Connections Plug-in hose connector ∅6 mm / ¼”
Socket connection G 1/8
english
Type 8690 Ex