Model For Control Of Process Valves Belonging To The 20Xx Series; Operating Conditions; Conformity; Mechanical Data - Burkert 8690 Manuel D'utilisation

5.1.2. Model for control of process Valves
belonging to the 20xx series
A special model enables the Pneumatic Control Unit Type 8690 to be
attached to process valves belonging to the 20xx series.
This model has a different pneumatic connection module so that the
pilot air ports can be connected to the outside of the actuator (see
"Fig. 3: ").
Pilot air port 2
1
Pilot air port 2
2
Fastening screws (2 x)
Fig. 3: Connection module for process valves, 20xx series
5.2. 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:
10
0 to +55 °C
english
Type 8690
Technical Data
Protection class: 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 "7.2.
Installing the Process Valve").
5.3.

conformity

CE mark conforms to EMC Directive 2004/108/EC
(only if cables, plugs and sockets connected correctly).
5.4. Mechanical data
Dimensions:
Body material external:
Sealing material external:
internal:
Stroke range of valve spindle:
5.5. pneumatic data
Control medium: neutral gases, air, Quality classes in accordance
with DIN ISO 8573-1
Dust content Class 5:
Water content Class 3:
Oil content Class 5:
see data sheet
PPS, PC
EPDM
NBR
Micro switch 3 - 28 mm
Proximity switch 7 - 28 mm
max. particle size 40 μm,
max. particle density 10 mg/m
max. pressure dew point -20 °C or
min. 10 °C below the lowest operating
temperature
max. 25 mg/m
3
3