Confused about valve standards
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Z41H-16C is a valve that complies with European standards, while Z26R-J103 is a valve that meets American standards. Today, at the installation site, I saw a Z41H-150LB valve – I want to know whether it follows European or American standards. Is there any information available for me to learn from?
The pressure ratings for European and American standards are different; valves made to American standards have thicker flanges. National standard valves follow European standards. Z41H-150LB is the result of combining Chinese standards with American standards; it is an American-standard valve.