เหตุผลที่วาล์วต้องอาศัยหัวขับวาล์วในการควบคุมมีดังนี้ Pneumatic pressure enters this housing implementing pressure into the diaphragm. Given that the air pressure raises on the diaphragm the power exerted versus the spring increases triggering the actuator stem to maneuver. • The disc, always offers itself for a restriction from the pipeline, even when completely open up. https://jaredwgmro.acidblog.net/45603768/electric-actuator-secrets