Optimized Safety: High-grade thermocouple construction provides fast response times to shut off gas flow if the pilot flame is extinguished

while the SD (Spring Down) model extends it

including the motor and the blower wheel

Is this the correct replacement for a 239-45613-01 valve

protecting the system's induction motors from potential winding damage during electrical faults

Armstrong Fluid Technology 571110LF-343 Valve 321142-301 Optimized Safety: High-grade thermocouple constructionThe Armstrong Fluid Technology 571110LF 343 is a high performance 1 1 4" NPT Circuit Balancing Valve designed to ensure precision flow regulation within hydronic systems. Specifically engineered for HVAC and plumbing applications, this brass body valve features EPDM elastomers and a multi turn Y pattern globe style design that significantly reduces flow turbulence while maintaining an accuracy of + 5%. With a robust 300 psi maximum working pressure