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English Translations » 【工业泵圈】 » The issue of compression volume in AY-type centrifugal pumps

The issue of compression volume in AY-type centrifugal pumps

2019-02-23View Original

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Pump A: 80AYⅡ100×2; Pump B: 150AYⅡ75; Pump C: 100AY120. Previously, single-face bellows mechanical seals of the DGB-65 model from Zhangjiagang were used. All three pumps share the same shaft sleeves, gland assemblies, rotating and stationary rings, sealing gaskets, and shoulder pads, and the measured seal compression amount is essentially the same； Later, for the technical upgrade, the C pump was equipped with a DGB-60 double-end face oil film seal; this seal can also be used on the A pump, and the compression volume is roughly the same as that of the C pump. However, when it is used on the B pump, the compression volume differs significantly. Why is that?

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Translated at 2026-07-21 03:27:38

Original: https://bbs.hcbbs.com/thread-2307880-1-1.html

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