Forged Brass Differential Pressure By-Pass Valve, Opening Differential Pressure Setting Adjustable from 1.5 to 9 PSI

• Eliminates Noise in a Zoned Hydronic System With Fixed-Speed Primary Circulator Pump
• Protects System Components
• Maintains System Efficiency
• Prevents Over-Pumping of Zone
• Installs in Any Orientation, Between the Boiler Supply and Return Line or Between Zone Leg in Larger System
• Opening Differential Pressure Setting Adjustable from 1.5 to 9 PSI
• Available in MIP, FIP, SWT, PRS, GMT