What does JOY mean in the model numbers of high-temperature valves?
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What does JOY mean in the model number of the high-temperature valve shown in the diagram?
An explanation of the markings and model numbers of valves – take a look to see if this is helpful to you: lol
National standard JBT308 also does not have this format. But some foreign valves have similar markings. It probably refers to the yoke-type connection, which mainly denotes the type of connection between the valve cover and the handwheel. Simply put, it’s two support ribs.
Just show the image – nothing can be clearer than an image. It becomes clear right away; take another look at the actual item.