環狀噴射無聲逆止閥廣泛應用於石油化工、化工、紡織、印染、冶金、礦山、排水和灌溉等行業的水泵輔助設備。
它們主要用於水泵處理的機械設備，安裝在水泵水下吸入管的底部，防止回流。

Annular et silent check valves are widely used in water pump auxiliary equipment in petrochemical, chemical, textile, printing and dyeing, metallurgy, mining,

drainage and iigation industries.

They are mainly used in mechanical equipment for water pump treat­ment and are installed at the bottom of the underwater suction pipe of the pump to prevent backflow.