Watts 0391009 Ball Valve THPU32HP7Y Pilot-Operated Precision: Ensures accurate flow

Pilot-Operated Precision: Ensures accurate flow regulation in liquid or discharge gas lines with a minimum operating pressure drop of 2 psi

including the 51S and 51S-2 combination units

Is the S1-073-28176-000 compatible with older S1-073-15128-000 installations

and PRS2006K without the need for mounting box modifications

ensuring no-hassle drop-in installation for specific HVAC systems

Watts 0391009 Ball Valve THPU32HP7Y Pilot-Operated Precision: Ensures accurate flowThe Watts 0391009 is a 1 inch Lead Free LF909 QT reduced pressure zone (RPZ) backflow preventer assembly, designed to provide high hazard protection against backsiphonage and backpressure in potable water systems. This model serves as the direct replacement for the older 909QT 1 series, featuring a modular check valve design for streamlined field maintenance. The integrated 1 4 turn ball valves provide reliable shut off capability and easy testing