Ball Float Vent Valve

Ball Float Vent Valve is a kind of automatic control liquid level valve, ‌use for Underground Storage Tank Equipment. It directly uses liquid level control, ‌ does not need other devices and energy, ‌ easy maintenance, ‌ liquid level control accuracy, ‌ is not affected by water pressure, ‌ reliable seal. ‌ The valve is composed of main valve, ‌ needle valve, ‌ ball valve, ‌ float ball valve, ‌ micro filter and other hydraulic control nozzle system. ‌ when from the inlet oil supply pipeline, ‌ caused by needle valve, ‌, ‌ ball valve floating ball valve is normally open, ‌ oil through micro filter, ‌ needle valve, control room ‌,  ‌ ball valve floating ball valve into the pool. ‌ At this time, there is no pressure in ‌ control room, ‌ main valve is opened, and ‌oil tower (pool) is supplied. ‌ When the water level of the oil tower (pool) rises to the set height, ‌ float ball will float to close the float ball valve, ‌ control the indoor oil pressure to increase, ‌ push the main valve to close, ‌ oil supply will stop. ‌ When the oil level drops, the ‌ float ball valve will be opened again, the water pressure of the ‌ control room will decrease, the ‌ main valve will be opened again to continue oil supply, and the ‌ liquid level will be maintained at the set height