Armstrong International D25403 Valve Kit R-410A Leakage Prevention: Ensures original factory

Leakage Prevention: Ensures original factory Class IV leakage ratings are restored during valve rebuilding

it maintains the pressure drop requirements necessary for efficient combustion and prevents pilot outage issues common in aging manifolds

Ensure your transformer has sufficient VA capacity if slaving multiple dampers to a single zone

Look for water pooling in the burner compartment

Armstrong International D25403 Valve Kit R-410A Leakage Prevention: Ensures original factoryMaintain the precision and performance of your steam system with the genuine Armstrong International D25403 Valve Kit. Specifically engineered for GP 2000 pressure reducing valves ranging from 1 2" to 6", this comprehensive Pilot Valve Kit No. K 2110 is the essential solution for repairing or upgrading your pilot operated regulator. As the direct OEM replacement for 6020385, the D25403 ensures seamless integration and technical compliance with