3363 datasheet(32/35 Pages) BURKERT

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Type 3363

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Design of electromotive diaphragm valve Type 3363 AG3

Actuator housing

Transparent window with position indicator

Pressure compensation element/access

to the mechanical manual override

SAFEPOS energypack

(optional)

Electrical connections (circular plug-in connector)

FE Functional earth

Actuator cover

Blind cover or display module with

device status indicator and bayonet catch

Actuator base

2 relief bores

Diaphragm socket

Port connection

Valve body

Diaphragm

Integrated position controller

The position of the actuator (stroke) is controlled

according to the position set-point. The position set-

point is either given by an external standard signal

(analogue) or via a fieldbus (digital). The displacement

transducer records the actual position (POS) of the

electric linear actuator. This actual position value is

compared by the positioner with the position set-

point (CMD) specified as standard signal. If there is

a system deviation (Xd1), the electric motor drive is

controlled via the manipulated variable CTRL and the

actual position value is changed accordingly.

Valve opening

Electro-

motive

actuator

Displacement transducer

Position

controller

Set-point

position value

CMD

Xd1

CTRL

POS

Position control circuit

+ -

Valve body

Integrated process controller (optional)

The additionally implemented PID controller allows

process control. The set-point position of the valve

is calculated from the external signal (e.g. level, pres-

sure, flow rate, temperature) for the process set-point

and the actual process value via the control parame-

ters (PID controller).

Process size

Process

Transmitter

Process-

controller

Process

set-point

Xd2

CMD

Valve

opening

+ -

Positon

control

circuit

3363 Datasheet(PDF) 32 Page - Christian Bürkert GmbH & Co. KG

3363 Datasheet(HTML) 32 Page - Christian Bürkert GmbH & Co. KG

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