PUMP

摘要

This discharge valve structure comprises: a valve body; a sheet member provided with a sheet surface on which said valve body is seated, and a sheet hole through which a fluid flows; an elastic body that impels the valve body to the sheet member; and a socket member provided with an accommodation hole for accommodating the valve body and elastic body therein. An orifice passage that communicates from the accommodation hole to the outside is provided to the socket member.