| 上密封式球阀 |
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| 引用本文： | 张南苑 许默然 周立群. 上密封式球阀[J]. 阀门, 2006, 0(2): 37-39 |
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| 作者姓名： | 张南苑 许默然 周立群 |
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| 作者单位： | 沈阳阀门研究所,辽宁沈阳110025 |
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| 摘 要： | 介绍了一种带有上密封功能的球阀，程序分配机构使该球阀在启闭过程中完成了要求的动作，实现了启闭密封副之间摩擦力较小的性能。
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| 关 键 词： | 球阀 上密封 程序分配 启闭扭矩 |
| 文章编号： | 1002-5855（2006）02-0037-03 |
| 收稿时间： | 2005-12-08 |
| 修稿时间： | 2005-12-08 |
Back seal ball valve |
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| ZHANG Nan-yuan, XU Mo-ran, ZHOU Li-qun. Back seal ball valve[J]. Valve, 2006, 0(2): 37-39 |
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| Authors: | ZHANG Nan-yuan XU Mo-ran ZHOU Li-qun |
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| Affiliation: | Shenyang Valve Research Institute, Shenyang 110025, China |
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| Abstract: | Introduces a kind of ball valves with the function of back seal. Programme distribution setup makes the ball valve complete the required action during the process of opening and closing movement. It realizes the performance of less friction between the trims during opening and dosing. |
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| Keywords: | ball valve back seal programme distribution open and close torque |
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