Mechanism for adjusting pressure in a pressure flow rate control valve has a pressure adjusting screw to adjust pre-tension force in a spring element and a pressure adjustment scale to display a pre-adjusted pressure level.

摘要

A pressure adjusting screw (224) adjusts pre-tension force in a spring element (222) by turning together with a pressure adjusting handgrip (108). A pressure adjustment scale (118) displays a pre-adjusted pressure level through turning the pressure adjusting handgrip in a set direction.