Newbie seeking help: What is the purpose of the groove on the cover of a swing check valve?

2017-10-24View Original

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There are several deep grooves on both the body and the cover of the check valve – are they used for casting processes? Or does it have other functions?

Reply #22017-10-24

There are three grooves on the check valve cover

Reply #32017-10-24

Could you be more detailed? I have no idea what its function is

Reply #42017-10-24

I’m just guessing too; I haven’t paid attention to it usually

Reply #52017-10-26

This groove is used as a shortcut to cut costs; it involves removing material from within the thickness of the middle flange in order to reduce the cost of casting the valve body. This type of valve is from Zhejiang Yongqiang; they often do this. If the flanges are calculated according to GB150, they should not meet the requirements; however, I haven’t yet checked the strength of such flanges.

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Newbie seeking help: What is the purpose of the groove on the cover of a swing check valve?

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