ARI Armaturen DP34 EN - Manual (Page 24)

Page 24 0040504000 1210
Operating and installation instructions
Pneumatic actuators - DP32 / DP33 / DP34
- Turn diaphragm plate (pos. 11) with rolling diaphragm (pos. 10) and diaphragm flange
(pos. 9) 180° and mount in this order over the stem (pos. 1) too.
- Tighten with flange nut (pos. 14). (Observe the tightening torques of the screws, see point
8.1)
DP32, DP33, DP34:
- Make sure the stem (pos. 1) surface isn’t damaged.
- Grease stem surface, guiding (pos. 3.1) and O-ring (pos. 3.3).
- Inserting of the compression springs (pos. 15) and Assembling of the actuator as
described under point 9.1.2
- Screw the ventilation, screw cap (pos. 19), in the diaphragm base (pos. 7) and the control
pressure line has to be connected to the diaphragm cover (pos. 18).
- Mounting of actuator with valve and adjustment of starting pressure signal as described
under point 5.7 and 5.8.
9.2.2 Change of operating mode "actuator stem retracts by spring force" in "actuator
stem extends by spring force"
For diagrams refer to point 4.3
DP32, DP33, DP34:
- Take off diaphragm cover (pos. 18) and take out the unit assembly group diaphragm plate
(pos. 11), rolling diaphragm (pos. 10), stem (pos. 1) and then the compression springs
(pos. 15).
DP32:
- Loosen flange nut (pos. 14) and remove diaphragm flange (pos. 9), rolling diaphragm
(pos. 10), diaphragm plate (pos. 11) and bushing (pos. 8).
- Turn 180° and mount in this order over the stem (pos. 1): bushing (pos. 8), diaphragm
flange (pos. 9), rolling diaphragm (pos. 10), diaphragm plate (pos. 11).
- Tighten with flange nut (pos. 14).
(Observe the tightening torques of the screws, see point 8.1)
DP33, DP34:
- Loosen flange nut (pos. 14) and remove diaphragm flange (pos. 9), rolling diaphragm
(pos. 10), diaphragm plate (pos. 11), bushing (pos. 8) and O-ring (pos. 12) with bushing
(pos. 13).
- Mount bushing (pos. 8) over the stem (pos. 1).
- Turn diaphragm flange (pos. 9) with rolling diaphragm (pos. 10) and diaphragm plate (pos.
11) 180° and mount in this order over the stem (pos. 1).
- Turn O-ring (pos. 12) and bushing (pos. 13) 180° and mount in this order over the stem
(pos. 1), too.
- Tighten with flange nut (pos. 14). (Observe the tightening torques of the screws, please
see point 8.1)
DP32, DP33, DP34:
- Make sure the stem (1) surface isn’t damaged.
- Grease stem surface, guiding (3.1) and O-ring (3.3).
- Inserting of the compression springs (15) and Assembling of the actuator as described
under point 9.1.1.
- Screw the ventilation, screw cap (19), in the diaphragm cover (18) and the control
pressure line has to be connected to the diaphragm base (7).
- Mounting of actuator with valve and adjustment of starting pressure signal as described
under point 5.5 and 5.6