交流密封油泵整机HSND660-40,供应铁合金厂
过热
因密封面上会产生热,故橡胶圈使用温度应低于设计规范。氟橡胶和聚四氟乙烯的使用温度为216℃,丁晴橡胶的使用温度为162℃,虽然它们都能承受较高的温度,但因密封面产生的热较高,所以橡胶圈有继续硫化的危险,终失去弹性而泄漏。(冷区考虑冷脆)
密封面之间还会因热引起介质的结晶,如结碳,造成滑动部件被粘住和密封面被凝结。而且有些聚合物因过热而焦化,有些流体因过热而失去润滑等甚至闪火。过热除能改变介质的状况外,还会加剧它的腐蚀速率。引起金属零件的变形,合金面的开裂,以及某些镀层裂缝,设计应选用平衡型机械密封,以降低比压防止过热。
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交流密封油泵整机HSND660-40,供应铁合金厂
超差
正确的装配公差,对于安装机械密封是很必要的,轴(轴套)必须有合适的表面粗糙度和正确的尺寸,但制造者很少提供公差数据,这些数据对安装来讲都是很关键的。(依靠经验和常识)
机械密封的尺寸精度及形位公差必须符合图纸要求,超差将会导致密封提前失效。
HSND系列三螺杆泵规格型号:
HSND40-38 HSND40-46 HSND40-54 HSND80-36 HSND80-42
HSND80-46 HSND80-54 HSND120-42 HSND120-46 HSND120-51
HSND120-54 HSND210-40 HSND210-46 HSND210-54 HSND280-43
HSND280-46 HSND280-54 HSND440-40 HSND440-46 HSND440-52
HSND440-54 HSND660-40 HSND660-44 HSND660-46 HSND660-51
HSND660-54 HSND940-36 HSND940-42 HSND940-46 HSND940-50
HSND940-54 HSND1300-38 HSND1300-42 HSND1300-44 HSND1300-46
HSND1300-54 HSND1700-42 HSND1700-46 HSND2200-42 HSND2200-46
HSND2900-40 HSND3600-46 HSND5300-36 HSND5300-42 HSND5300-46
HSND7400-32 HSND7400-40 HSND9400-32 HSND9400-40
HSND40-38N HSND40-46N HSND40-54N HSND80-36N HSND80-42N
HSND80-46N HSND80-54N HSND120-42N HSND120-46N HSND120-51N
HSND120-54N HSND210-40N HSND210-46N HSND210-54N HSND280-43N
HSND280-46N HSND280-54N HSND440-40N HSND440-46N HSND440-52N
HSND440-54N HSND660-40N HSND660-44N HSND660-46N HSND660-51N
HSND660-54N HSND940-36N HSND940-42N HSND940-46N HSND940-50N
HSND940-54N HSND1300-38N HSND1300-42N HSND1300-44N HSND1300-46N
HSND1300-54N HSND1700-42N HSND1700-46N HSND2200-42N HSND2200-46N
HSND2900-40N HSND3600-46N HSND5300-36N HSND5300-42N HSND5300-46N
HSND7400-32N HSND7400-40N HSND9400-32N HSND9400-40N
HSND40-38W1 HSND40-46W1 HSND40-54W1 HSND80-36W1 HSND80-42W1
HSND80-46W1 HSND80-54W1 HSND120-42W1 HSND120-46W1 HSND120-51W1
HSND120-54W1 HSND210-40W1 HSND210-46W1 HSND210-54W1 HSND280-43W1
HSND280-46W1 HSND280-54W1 HSND440-40W1 HSND440-46W1 HSND440-52W1
HSND440-54W1 HSND660-40W1 HSND660-44W1 HSND660-46W1 HSND660-51W1
HSND660-54W1 HSND940-36W1 HSND940-42W1 HSND940-46W1 HSND940-50W1
HSND940-54W1 HSND1300-38W1 HSND1300-42W1 HSND1300-44W1 HSND1300-46W1
HSND1300-54W1 HSND1700-42W1 HSND1700-46W1 HSND2200-42W1 HSND2200-46W1
HSND2900-40W1 HSND3600-46W1 HSND5300-36W1 HSND5300-42W1 HSND5300-46W1
HSND7400-32W1 HSND7400-40W1 HSND9400-32W1 HSND9400-40W1
HSNDF40-38 HSNDF40-46 HSNDF40-54 HSNDF80-36 HSNDF80-42
HSNDF80-46 HSNDF80-54 HSNDF120-42 HSNDF120-46 HSNDF120-51
HSNDF120-54 HSNDF210-40 HSNDF210-46 HSNDF210-54 HSNDF280-43
HSNDF280-46 HSNDF280-54 HSNDF440-40 HSNDF440-46 HSNDF440-52
HSNDF440-54 HSNDF660-40 HSNDF660-44 HSNDF660-46 HSNDF660-51
HSNDF660-54 HSNDF940-36 HSNDF940-42 HSNDF940-46 HSNDF940-50
HSNDF940-54 HSNDF1300-38 HSNDF1300-42 HSNDF1300-44 HSNDF1300-46
HSNDF1300-54 HSNDF1700-42 HSNDF1700-46 HSNDF2200-42 HSNDF2200-46
HSNDF2900-40 HSNDF3600-46 HSNDF5300-36 HSNDF5300-42 HSNDF5300-46
HSNDF7400-32 HSNDF7400-40 HSNDF9400-32 HSNDF9400-40
HSNDF40-38N HSNDF40-46N HSNDF40-54N HSNDF80-36N HSNDF80-42N
HSNDF80-46N HSNDF80-54N HSNDF120-42N HSNDF120-46N HSNDF120-51N
HSNDF120-54N HSNDF210-40N HSNDF210-46N HSNDF210-54N HSNDF280-43N
HSNDF280-46N HSNDF280-54N HSNDF440-40N HSNDF440-46N HSNDF440-52N
HSNDF440-54N HSNDF660-40N HSNDF660-44N HSNDF660-46N HSNDF660-51N
HSNDF660-54N HSNDF940-36N HSNDF940-42N HSNDF940-46N HSNDF940-50N
HSNDF940-54N HSNDF1300-38N HSNDF1300-42N HSNDF1300-44N HSNDF1300-46N
HSNDF1300-54N HSNDF1700-42N HSNDF1700-46N HSNDF2200-42N HSNDF2200-46N
HSNDF2900-40N HSNDF3600-46N HSNDF5300-36N HSNDF5300-42N HSNDF5300-46N
HSNDF7400-32N HSNDF7400-40N HSNDF9400-32N HSNDF9400-40N
HSNDF40-38W1 HSNDF40-46W1 HSNDF40-54W1 HSNDF80-36W1 HSNDF80-42N
HSNDF80-46W1 HSNDF80-54W1 HSNDF120-42W1 HSNDF120-46W1 HSNDF120-51N
HSNDF120-54W1 HSNDF210-40W1 HSNDF210-46W1 HSNDF210-54W1 HSNDF280-43N
HSNDF280-46W1 HSNDF280-54W1 HSNDF440-40W1 HSNDF440-46W1 HSNDF440-52N
HSNDF440-54W1 HSNDF660-40W1 HSNDF660-44W1 HSNDF660-46W1 HSNDF660-51N
HSNDF660-54W1 HSNDF940-36W1 HSNDF940-42W1 HSNDF940-46W1 HSNDF940-50W1
HSNDF940-54W1 HSNDF1300-38W1 HSNDF1300-42W1 HSNDF1300-44W1 HSNDF1300-46N
HSNDF1300-54W1 HSNDF1700-42W1 HSNDF1700-46W1 HSNDF2200-42W1 HSNDF2200-46W1
HSNDF2900-40W1 HSNDF3600-46W1 HSNDF5300-36W1 HSNDF5300-42W1 HSNDF5300-46W1
HSNDF7400-32W1 HSNDF7400-40W1 HSNDF9400-32W1 HSNDF9400-40W1
交流密封油泵整机HSND660-40,供应铁合金厂