<br>The float valve is tank mounted with an adjustable arm; The valve has a 0.093-inch hole and an estimated flow rate of 1.3 gallons per minute (gpm) at 40 psi, at 60 psi. 1.5 gallons per minute; The valve inlet has a 1/2 inch NPT male extension thread; Sealing washers and lock nuts for mounting on the tank wall, the valve outlet is free to flow. <br> <br>No power or pump required: <br>The water float ball valve is suitable for low pressure gravity feeding systems, leak-free operation is achieved by hand tightening. <br> <br>Applicable environment: <br>The water trough float valve is suitable for ponds, chickens, livestock sinks, aquariums, Aquaponics, aquaculture, hydroponic tank reservoirs. <br> <br>Specification: <br>Material: PVC and 18-8 stainless steel <br>Float material: PE <br>Line port size: 1/2 inch <br>Working temperature: 0-70 degrees Celsius <br>Flow direction: one direction <br>Drive: hydraulic control <br>Apply pressure: 0.01-1.2MPA <br> <br>Package list: <br>2 x Float valves....