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What is "valve rating" and "Valve class" ?what differencre

What is "valve rating" and "Valve class" ?what differencre

What is "valve rating" and "Valve class" ?what differencre

(OP)
What is "valve rating" and "Valve class" ?what differencre?

RE: What is "valve rating" and "Valve class" ?what differencre

Valve rating is nothing but the maximum pressure a valve can withstand or a pressure which valve designed.

Class are meant for Flange design.

RE: What is "valve rating" and "Valve class" ?what differencre

The rating of a valve if you take B16-34 is the maxiumum pressure (psig) at a specified temperature (deg F) for a specified material (ASTM/ASME).

A Class covers all the ratings for the particular material within the specified temperature range.

For example Class 150 for WCB would cover all the pressure ratings from -20F to 1000F for that material. (It also covers both standard and special class)

Hope this helps.

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