ISO part-turn valve/actuator standards: what does it mean for the end user?

摘要

What do ISO part-turn valve/actuator standards mean for the end user? To put it bluntly, "confusion." Most customers, salesmen, engineers, in other words, most people in the industry, do not seem to understand what the "standards" mean and what they really say. Again and again, the phrase "standardize on ISO and everything will interchange" is heard in meetings and conversations around the water cooler... wrong.