Manufacturer: Johnson Controls
Description: VALVE LINKAGE,USE W/M150
Sub Category: Linkages
Y20EBD Valve Linkage
for M150 Motor Actuators
The Y20EBD Valve Linkage converts the rotary motion of an M100
Series Motor Actuator to a linear movement in order to operate several
types of valves.
A rack and pinion drive mechanism provides the linear movement. The
rack assembly contains a spring that, when compressed by over travel, will
maintain valve close off to rated values. The pinion gear may be reversed
for manual operation with a 3/8 inch socket drive extension for service of
Note: The Y20EBD linkage kit can be used on Barber-Colman
1-1/2 to 2 inch valves. Use the grooved adapter bushing provided
with the linkage kit for V-90 Series and the mid-bracket position.
Larger Barber-Colman valves can mount onto the Y20EBD yoke
directly; however, adding locally purchased large washers under
the linkage bracket to prevent paint damage is recommended.
A selection of models are available to adapt M100 Motor Actuators to
several types of valves.
A Y20EBD-4 linkage is available to enable an M150 Motor Actuator to
operate S91 auxiliary switches for automatic heating/cooling changeover
applications. The Y20EBD-4 allows additional over travel after valve
close off for switch operation.
Replaces Part Numbers: Y20EBD-3, CARY20EBD-3