Structure And Function; Representation - Structure Of The Electromotive Diaphragm Control Valve - Burkert 3363 Operating Instructions Manual

6

STRUCTURE AND FUNCTION

The electromotive diaphragm control valve consists of a linear actuator powered by an electric motor and a
diaphragm valve body.
The control electronics and "SAFEPOS energy-pack" are housed in the side of the linear actuator.
The control electronics assembly consists of the microprocessor-controlled electronic mechanism and the
position sensor.
The actuation electronics assembly for position control or process control is actuated either via standard
signals (analogue) or via a fieldbus (digital).
The electromotive diaphragm control valve is designed with the three-wire technique. Standard devices are
operated with 2 buttons and 4 DIP switches, while devices with a display module can be display-operated.
The electromotive linear actuator consists of a brushless direct current motor, a gear and a threaded spindle.
The valve spindle connected to the threaded spindle transfers the force to the diaphragm compressor.
The linear actuator does not use any electrical energy when holding the valve position. This means that,
when idling, only the control electronics require energy.
Port connections:
Welded connection, threaded socket connection, flange connection, clamp connection or bond connection
(Connection sizes on request).
6.1 Representation – Structure of the electromotive
diaphragm control valve
Blind cover or display with
device status indicator and bayonet
Transparent inspection view with
Fig. 1: Structure, electromotive diaphragm control valve with 2-way body
16
catch
Actuator cover
Actuator housing
position indicator
Actuator base
2 relief bores
Diaphragm
Valve body
English
Typ 3363, 3364, 3365
Structure and function
Electrical connectors
(circular plug-in connector
or cable gland)
Only for devices with
process control function
Pressure component element
Do not unscrew!
FE functional earth
Diaphragm socket
Port connection