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6 technical data, 6technical data – Burkert Type 8690 User Manual

Page 10

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Descriptionofsystem

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 connection housing so that the pilot air ports
can be connected to the outside of the actuator.

Pilot air outlet 2

1

Fastening screws (2 x)

Pilot air outlet 2

2

Fig. 3: Model for process valves, 20xx series

6

Technical DaTa

6.1

conformity

In accordance with the EC Declaration of conformity, the Pneumatic
Control Unit Type 8690 is compliant with the EC Directives.

6.2

standards

The applied standards on the basis of which compliance with the EC
Directives is confirmed are listed in the EC type examination certificate
and/or the EC Declaration of Conformity.

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:

see type label

Degree of protection:

IP65 / IP67 according to EN 60529
(only if cables, plugs and sockets have
been connected correctly and in com-
pliance with the exhaust air concept in
chapter “8 Pneumatic installation”).

6.4

mechanical data

Dimensions:

see data sheet

Housing material external PPS, PC

Sealing material external EPDM

internal NBR

Stroke range of valve spindle Micro switch 7 – 28 mm

Proximity switch 2 – 28 mm

english

Type 8690