System Description; Structure And Function - Burkert 8695 Series Quick Start Manual

Type 8695 REV.3

System description

5 SYSTEM DESCRIPTION
5.1

Structure and function

The control head Type 8695 can control single or double-acting
process valves.
Fig. 1: Structure 1
Depending on the conditions of use, different process valves from
the Bürkert range can be combined with the control head. Angle-
seat valves, globe valves and diaphragm valves of series 21xx
(ELEMENT) and 20xx (CLASSIC) are suitable.
Control head
Actuator
Process valve
Valve body
The control head Type 8695 has been optimized for the integrated
modular fitting of series 21xx process valves (ELEMENT) with
actuator size ∅ 50. Various expansion stages are possible thanks
to the modular design.
For installation on the 20xx series (CLASSIC) there is a special
variant.
View without transparent cap, series 21xx (ELEMENT):
Pressure limiting valve (for pro-
tection against too high internal
pressure in case of error)
Electrical connection
Circular plug-in connector M12 x 1
Basic housing
Exhaust air port
Pilot air outlet 2
Pilot air outlet 2
Variant for series 20xx (CLASSIC)
Fig. 2: Structure 2
english
(label: 3)
Fastening screws (2 x)
Pilot air port
(label: 1)
1
2
7