1-1/4" Pressure Activated Bypass Valve

This valve prevents a steep rise of the pump head and maintains flow at a stable rate. Also ensures only required amount of circulating water is used for hydronic systems. The 1-1/4" valve can be adjusted to any point between 10 and 60 ft H2O (30 and 1800 mbar). Maximum flow of 35 USgpm (7950 L/h).