DBW10A1-52/200-6EG24N9K4
DBW10A1-52/200-6EG24N9K4
DBW10A1-52/200-6EG24N9K4
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武汉耀泰 供应力士乐全系列 泵,阀,油缸
DBW10B1-52/315-6EG24N9K4
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2FRM16-21B/160L
4WRZE 32 W8-520-7X/6EG24N9EK31/F1D3M
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A10VO28DR/31R-VSC12K01
AZPF-11-022RRR20KB-S0023
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AZPF-11-022RRR20KB-S0023
A11VLO190LRDU2/11R-NZD12K02P
A11VLO260LRDU2/11R-NZD12K02P
811404306
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AZPF-11-022RRR20KB-S
A10VO28DR/31R-PSC62K01
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6、低温、深冷介质如:液氨、液氢、液氧等选用楔式闸阀;
7、低压大口径,如自来水工程、污水处理工程选用楔式闸阀;
8、当高度受限制时选用暗杆式,当安装高度不受限制时用明杆闸阀;
9、在开启和关闭频率较低的场合下,宜选用楔式闸阀;
10、 楔式单闸板闸阀适用于易结焦的高温介质,楔式双闸板闸阀适用于蒸汽、油品和对
密封面磨损较大的介质,或开关频繁的部位,不宜用于易结焦的介质;
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2.阀门标质
2.1阀体材质,应以球墨铸铁为主,并注明牌号及铸铁实际的物理化学检测数据。
2.2阀杆材质,力求不锈钢阀杆(2CR13),大口径阀门也应是不锈钢嵌包的阀杆。
2.3螺母材质,采用铸铝黄铜或铸铝青铜,且硬度与强度均大于阀杆。
2.4阀杆衬套材质,其硬度与强度均应不大于阀杆,且在水浸泡状况下与阀杆、阀
体不形成电化学腐蚀。---这是阀门生产商考虑的因素。
2.5密封面的材质①阀门类别不一,密封方式及材质要求不一;②普通楔式闸
阀,铜环的材质、固定方式、研磨方式均应说明;③软密封闸阀,阀板衬胶材料的物理化
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