Valve of booster water flooding pump

The utility model discloses a valve of a booster water flooding pump, comprising an upper pressing sleeve, a liquid discharging spring, a liquid discharging valve seat, a middle pressing sleeve, a liquid charging spring and a liquid charging valve seat. A bolt hole is respectively opened in the middle of the liquid discharging valve seat and the liquid charging valve seat; small holes are arranged evenly on the periphery of the bolt hole; the liquid discharging spring and the liquid charging spring are respectively fixed on the liquid discharging valve seat and the liquid charging valve seat, via a fixing bolt and a spring seat. A nylon valve sheet is respectively arranged between the liquid discharging spring and the liquid discharging valve seat, and between the liquid charging spring and the liquid charging valve seat. In the utility model, the structure of the liquid charging and discharging valve seats are improved, which increases the hydraulic efficiency, reduces the bearing strength of a pump head; simultaneously, the knock which is produced when the nylon valve sheets fall alternately on the valve seats is far smaller than the noise which is produced when steel valve sheets fall on the valve seats; so, the noise produced by the whole machine is reduced.