JOHNSON VA-74XX SERIES
For the Johnson Control VA-74XX series, Spartan offers the AV27 retrofit linkage adaptor
This linkage converts the metric M28 thread of Johnson to Spartan M30 thread.
Allows replacement for series VA-74XX actuator on VG4000 and VG5000 valve bodies.
Allows you to use all Spartan valve actuators except for the Spartan thermostatic series.