pressure regulator

Fuel pressure regulator is used for protection of the normal components of automobile fuel pressure in the oil. Hydraulic size by spring and vacuum the coordination, when oil pressure is higher than the standard, the high pressure fuel dynamic diaphragm will top up, ball valve is opened, the excess of reflux tank of fuel will be the return pipe; When pressure is lower than standard, the spring will press diaphragm will ball valve closed, stop the oil return.