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双联定量齿轮泵
HGP-22A
HGP-22A-F22R
HGP-22A-F33R
HGP-22A-F44R
HGP-22A-F55R
HGP-22A-F66R
HGP-22A-F88R
HGP-22A-F99R
HGP-22A-F1111R
HGP-22A-F1212R
HGP-22A-F22L
HGP-22A-F33L
HGP-22A-F44L
HGP-22A-F55L
HGP-22A-F66L
HGP-22A-F88L
HGP-22A-F99L
HGP-22A-F1111L
HGP-22A-F1212L
HGP-22A-L22R
HGP-22A-L33R
HGP-22A-L44R
HGP-22A-L55R
HGP-22A-L66R
HGP-22A-L88R
HGP-22A-L99R
HGP-22A-L1111R
HGP-22A-L1212R
HGP-22A-L22L
HGP-22A-L33L
HGP-22A-L44L
HGP-22A-L55L
HGP-22A-L66L
HGP-22A-L88L
HGP-22A-L99L
HGP-22A-L1111L
HGP-22A-L1212L
HGP-33A
HGP-33A-F44R
HGP-33A-F66R
HGP-33A-F88R
HGP-33A-F282
HGP-33A-F1111R
HGP-33A-F1313R
HGP-33A-F1414R
HGP-33A-F1717R
HGP-33A-F1919R
HGP-33A-F2323R
HGP-33A-F2525R
HGP-33A-F2828R
HGP-33A-F3030R
一是引起静环密封因过度变形，影响密封效果；二是静环材质以石墨居多，一般较脆，过度受力极易引起碎裂；三是安装、拆卸困难，极易损坏静环。叶轮锁母越紧越好。机械密封泄漏中，轴套与轴之间的泄漏(轴间泄漏)是比较常见的。一般认为，轴间泄漏就是叶轮锁母没锁紧，其实导致轴间泄漏的因素较多，如轴间垫失效，偏移，轴间内有杂质，轴与轴套配合处有较大的形位误差，接触面破坏，轴上各部件间有间隙，轴头螺纹过长等都会导致轴间泄漏。
