Alfa Laval 8692, Quick Start Manual

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Description of system
Type 8692, 8693
5. descriPTion of sysTem
Positioner or process controller
Actuator
Valve body
Process valve
Fig. 1: Structure 1
The positioner Type 8692 and the process controller Type 8693 are
electropneumatic positioner controllers for pneumatically actuated
control valves with single-action or double-action actuators.
The positioner, together with the pneumatic actuator, make up an
optical and functional unit.
The control valve systems can be used for a wide range of control
tasks in fluid technology and, depending on the application condi-
tions, different process valves from the Alfa Laval range can be
combined with the positioner or with the process controller. Slanted
seat valves, straight seat control valves, diaphragm or ball valves are
suitable. Pilot air port
(label: 1)
Exhaust air port
(label: 3)
Electrical connection module
Transparent cap under it
control module with display and keys
Body casing
Additional exhaust air port (label: 3.1)
only for Type 23xx and 2103 with pilot-operated control
system for high air output (actuator size ø 125 / 130)
Air intake filter
Pressure limiting valve
Fig. 2: Structure 2
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