UNIWORLD Series
M/UNIWORLD-P/E ed. 01 2020
3.4.1.2
– VALVES 2000 RA – 2100 RA - 5000 RA – 5100 RA - 5800 RA
ATTENTION
BEFORE CARRYING OUT ANY MAINTENANCE OPERATION, SUPPLY AIR TO THE
SERVOMOTOR
(1 bar )
TO COMPRESS THE SPRINGS
.
F
ROM NOW ON (always keeping air in the servomotor) YOU CAN
EXTRACT THE YOKE-SERVOMOTOR AND EACH COMPONENT CONNECTED WITHOUT THE POSSIBILITY
THE SPRINGS REMAIN WITHOUT COMPRESSION
.
For
REVERSE ACTING valves (RA= air opens)
, Fig. 2000 RA
– 5000 RA, to replace the gasket of the body, proceed
as above, taking care however to unscrew the locking nuts ref. 12,
to supply air, at pressure that allows the valve to
execute a few millimetres of stroke, to distance the plug from its compartment,
FOR VALVES 2100 RA
– 5100 RA the pressure must be min. 2 bar and max 6 bar.
“2000 RA”
“5000 RA” (also valid for 5800 RA)
