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System description
5 SYSTEM DESCRIPTION
5.1 Intended application area
The positioner Type 8694 is designed to be mounted on pneumatic actuators of process valves for the
control of media.
5.2 Function of the positioner and combination with valve
types
Positioner Type 8694 is an electropneumatic position controller for pneumatically actuated control valves with
single-acting actuators.
Together with the pneumatic actuator, the positioner forms a functional unit.
Thecontrolvalvesystemscanbeusedforawiderangeofcontroltasksinuidtechnologyand,dependingon
theapplicationconditions,dierentprocessvalvesbelongingtoseries2103,2300,2301,26xxor27xxfrom
the Bürkert range can be combined with the positioner. Angle-seat valves, diaphragm valves or ball valves
ttedwithacontrolconearesuitable.
“Figure1”showsanoverviewofthepossiblecombinationsofpositioneranddierentpneumaticallyactuated
valves.Dierentactuatorsizesandvalvenominalwidths,notillustratedhere,areavailableforeachtype.More
precisespecicationscanbefoundontherespectivedatasheets.Theproductrangeisbeingcontinuously
expanded.
Positioner Type 8694
with angle seat valve
Type 2702
with diaphragm
valve
Type 2730
with angle seat valve
Type 2300
with straight seat valve
Type 2301
Figure 1: Overview of possible combinations
english
Type 8694 REV.2