standard:GB,BS,DIN,AWWA,ISO
PN1.0-205
DN50-500
material:grey cast iron, ductile cast iron, alloy cast iron

It is hydraulic control with multi-functions, it installs in the inlet of the pool or overhead tower, when the water level reaches to the set height, the main valve closes the inlet through controlling by float guide valve and stops supplying water. When the water level drops, main valve opens the inlet through the float guide valve opening and closing and the poll is filled with water, automatic compensation comes ture.