2.2 Attachment according to
IEC 60534-6
Note: Required mounting parts are listed in
Table 5. The rated travel of the valve deter
-
mines which lever and range spring (Table 6)
are required.
An adapter housing (Fig. 7) is required for
NAMUR attachment. The valve travel is
transmitted over the lever (18) and shaft
(25) to the bracket (28) of the adapter hous
-
ing and then passed on to the pin (27a) lo
-
cated on the positioner lever.
Fix the spring included in the accessories at
the back of the positioner housing as illus-
trated in Fig. 5 to ensure that the pin (27a)
is properly located in the bracket (28).
The positioner can be attached either to the
left or the right of the control valve (Figs. 6
and 7). Turn the positioner at the adapter
housing by 180° to set or change the oper-
ating direction of the positioner/control
valve unit.
EB 8355-1 EN 15
Attachment to control valve
Fig. 5 · Installing the spring on the back of the
housing
Spring Plug screw
20
20
Attachment left Attachment right
Mounting position on the plate looking onto the travel pick-up (20), actuator facing upward (see also Fig. 7)
Actuator with fail-safe action “Actuator stem extends” (FA)
Direct op. direction >> Reverse op. direction <> Direct op. direction >> Reverse op. direction <>
Actuator with fail-safe action “Actuator stem retracts” (FE)
Direct op. direction >> Reverse op. direction <> Direct op. direction >> Reverse op. direction <>
Fig. 6 · Attachment to the left or right of the valve when NAMUR attachment is used
Input
Input
Output and supply
Output and supply
Input
Output and supply
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