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English Translations » 【管道阀门技术圈】 » Valve packing P4390W2 and P4525

Valve packing P4390W2 and P4525

2021-11-12View Original

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I would like to ask: what materials do the valve sealants P4390W2 and P4525 represent respectively? On first contact, I couldn’t understand it just by looking at the code. Thank you
Reply #22021-11-15
Is that what’s written in the valve specification sheet for the tooling? It is a Japanese Pira filler; its code is their own designation, and it is a tetrafluoro compound

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Translated at 2026-07-23 18:35:56

Original: https://bbs.hcbbs.com/thread-3270032-1-1.html

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