UNIWORLD Series
M/UNIWORLD-P/E ed. 01 2020
3.4.4
– DIAPHRAGM REPLACEMENT
To replace the diaphragm, having unscrewed the perimeter screws of the servomotor, proceed as indicated in the Fig.
“ACTION”
DA
= unscrew screw ref.29, remove spacer ref. 25 (Attention ! position as in the figure), replace the diaphragm ref. 26
RA
= remove the spring, unscrew screw ref.29, remove the bushing ref. 28 (Attention ! position as in the figure), remove
the diaphragm plate ref. 27, replace the diaphragm ref. 26
Proceed to assemble in the reverse order.
The tightening force of the screw ref.29 must be 20Nm.
3.4.5
– INVERSE ACTION
The inverse action operation can be carried out with the valve assembled on the piping.
Ref. Fig. “ACTION” proceed as follows:
- Invert the parts as displayed in the drawing
-
The tightening force of the screw ref.29 must be 20Nm.
ATTENTION
check the signal function if the springs are compatible, e.g. you
want to pass from a RA version 6-18 psi to a DA version 3-15 psi, contact our
After-Sales Service to check the spring type.
Fig. “ACTION”
DA VERSION
RA VERSION
