DN250 讨论
DN250: 1 篇讨论. VAT pendulum valve seal kits: finding the right part number in the 650/655 manuals
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VAT pendulum valve seal kits: finding the right part number in the 650/655 manuals
**Short answer:** VAT ties spare parts to the valve's **fabrication number** (on the label). Its manuals say to quote that number when ordering, because the ordering number alone doesn't pin down seal material or variant. In the Series 650