and V5197 Series gas valves

While it fits many standard brackets

allowing for precise low pressure range adjustments from 20" Wc to 100 psi and high pressure range settings from 100 psi to 425 psi

Aftermarket plates often vary in thickness or mounting patterns

ensuring proper alignment with the drive shaft to eliminate binding and mechanical hysteresis

Johnson Controls V-3966-1002 Valve R-410A and V5197 Series gas valvesThe Johnson Controls V 3966 1002 is a heavy duty, two way brass pneumatic valve designed for high accuracy flow regulation in HVAC terminal units. Engineered for professionals handling fan coils and reheat coils, this 1 2" flare valve features a normally closed configuration to ensure system safety and efficiency during power or air signal loss. With a 3. 2 Cv flow coefficient and a precise 9 13 psi spring range, it provides stable throttling control