Burkert Type 3236 - Manual (Page 18)

18
Structureandfunction
Type 2035 / 3236
6.1.1. actuator
The actuator has two actuator chambers that can be controlled
independently of each other and act on one body seat each (double
action). Where only one actuator is in operation only one actuator
chamber is equipped with the internal functional parts.
Spring force (CFA, NC) or pneumatic pilot pressure (CFB, NO)
generates the closing force of the actuator.
The force is transmitted onto the corresponding pressure piece and
the diaphragm in each case via a spindle connected to the actuator
piston.
6.1.2. control functions (cf)
control function a, nc (cfa)
Closed by spring force in rest
position
1(P)
2(A)
control function B, nO (cfB)
Opened by spring force in rest
position
1(P)
2(B)
6.2. structure of Type 3236
The diaphragm valve consists of a manually operated actuator,
diaphragm and multi-port valve body.
Hand wheel
Actuator body
Body screws
Diaphragm
Valve body
Fig. 20: Manually operated diaphragm valve, structure and
description
6.2.1. actuator
The actuator has two hand wheels that can be controlled indepen-
dently of each other and act on one body seat each (double action).
Where only one actuator is in operation only one actuator side con-
tains functional parts.
The force is transmitted onto the corresponding pressure piece and
the diaphragm in each case via a spindle connected to the hand
wheel.
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