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What are the dimensions of a 4-inch pressure relief valve, such as the inner diameter? Please help, thank you!

2018-02-08 View Original

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I have no idea what size a 4-inch pressure relief valve is; please convert it into common parameters :)
Reply #2 2018-02-08
If it’s measured in the units you mentioned, that is, market inches, it’s approximately 133 mm. If it’s inches, then it’s approximately 100 mm. This dimension generally refers to the size that matches the pipe diameter when the valve is installed.
Reply #3 2018-02-08
Thank you. Could you recommend some reference materials?
Reply #4 2018-02-10
Do I need reference materials for this? You can’t possibly not know the metric and imperial units even in elementary school, right? Even if there is a British unit, you can just look it up in the manual or search for it on Baidu.
Reply #5 2018-02-11
This is too simple a question. . .
Reply #6 2018-04-09
1 inch = 2.54 cm, so 4 inches equals 100 cm, which is DN100

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