FLUID DEVICE WITH BELLOWS

摘要

A fluid device with bellows capable of preventing sediment from stagnating and accumulating inside a suction check valve and delivery check valve when a transfer liquid containing sediment such as slurry is used, wherein a suction port (18) and a delivery port (19) and a bellows are installed in the pump main body (1), and a ball valve disc is fitted closely to each valve seat by its self-weight in a suction ball type check valve and a delivery ball type check valve.