Precision Performance: The 1/2" x 3/4" configuration with a lift lever actuator provides manual testing capabilities required by most local boiler jurisdictions

making it a direct fit for 358-style heavy-duty applications

as these issues often mimic a failed pressure switch

Specifically engineered for ECR International brands including Dunkirk

including models like the PV8B16N080DH11D

Resideo DS06-103-DUS-LF Pressure Regulating Valve 322057-301 Precision Performance: The 1/2" xThe Resideo DS06 103 DUS LF is a professional grade 1 1 4" DialSet pressure regulating valve designed for heavy duty potable water and irrigation service. This lead free bronze PRV utilizes a balanced seat design to maintain consistent downstream pressure regardless of fluctuations in the 250 psi maximum inlet pressure. Featuring a double union sweat connection, this valve allows for rapid installation and serviceability in tight mechanical spaces.