NOTE: The direct-reading type is provided
neither with microswitches nor cam
unit.
The friction clutch automatically corrects valve’s
full open and full shut position on the indicator
scale.
The pointer (15) comes into contact with
stopper (f) at 97 % of valve actuator capacity; it
keeps slipping by a friction clutch arrangement
for the remaining 3 % although the Oval rotors
remain rotating; at the next start, the pointer
position is automatically corrected to the valve
position.
➡➡
The friction clutch automatically corrects valve’s
full open and full shut position on the indicator
scale.
The pointer (15) comes into contact with the
stopper (f) at 97 % of valve actuator capacity; it
keeps slipping by a friction clutch arrangement
for the remaining 3 % although the Oval rotors
remain rotating; at the next starting, the pointer
position is automatically corrected to the valve
position.