ARI Armaturen DP34 EN - Manual (Page 20)

Page 20 0040504000 1210
Operating and installation instructions
Pneumatic actuators - DP32 / DP33 / DP34
Concerning the unit DP32/33, attention must be given, that during the assembly of this
construction unit, a borehole be made in the rolling diaphragm (pos. 10) and that it is
aligned with the camber in the diaphragm plate (pos. 11).
- When inserting the assembly group into the actuator „actuator stem extends by spring
force“, one mould of the diaphragm plate (pos. 11) must align with one hole of the
diaphragm (pos. 10) which must also be exact over the air connection hole of the
diaphragm base (pos. 7) (Fig. 21 and Fig. 23).
- When inserting the assembly group into the actuator „actuator stem retracts by spring
force“, one mould of the diaphragm plate (pos. 11) must align with one hole of the
diaphragm (pos. 10) which must also be exact over the air connection hole of the
diaphragm cover (pos. 18) (Fig. 22 and Fig. 23).
Tightening torques of the flange nuts:
Tightening torques of the screws on the periphery:
Fig. 22: „actuator stem retracts by spring force“
Fig. 23
ATTENTION !
- When assembling the actuator, the following tightening torques are to be
observed (see point 8.1).
DP 32 / 33 M 12 50 Nm
DP 34 M 16x1,5 120 Nm
DP 32 / 33 M 8 5 Nm
DP 34 M 10 15 Nm
Rolling diaphragm
Diaphragm plate
Spring
Ventilation