Armstrong International D24660 Operator Els PW 17895 Visible leakage around the packing

Visible leakage around the packing box nut or inconsistent valve positioning typically indicates a worn seal

Critical for maintaining energy efficiency in HVAC pneumatic systems

a high-precision orange spring designed for industrial and commercial HVAC gas regulators

Key Benefits OEM Compatibility: Guaranteed fit for York

Broad Compatibility: Replaces multiple legacy part numbers including HH19ZA440 and P331-2143

Armstrong International D24660 Operator Els PW 17895 Visible leakage around the packingThe Armstrong International D24660, also identified as part number 6005640, is a heavy duty LV 4 Direct Valve Mounted Thermostatic Operator engineered for precise hydronic temperature control. This unit features a high sensitivity liquid filled sensor that provides superior responsiveness to ambient temperature fluctuations compared to standard wax filled alternatives. Designed for seamless integration with Armstrong radiator valves, the D24660