The valve gland caps I bought are all loose. What’s the reason for this?
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The newly installed MDI unit – those purchased for sealing the optical gas pipelines – have bellows valve gland bolts that are loose. Why is that? I’d appreciate advice from experts
It is best to consult the valve manufacturer, after all, the medium is quite dangerous. It reminds one of the Dangyang steam pipe explosion, one of the reasons for which was the unregulated production of nozzles.
What material is the valve made of?
Before installation or upon receipt of the purchase, a sealed compression must be carried out