国产精品久久久久久|成年入口无限观看免费完整大片|中文字幕本久久精品一区|99蜜桃臀久久久欧美精品|国产日韩av在线播放

CN / EN

Stainless steel flanged ball valves attention safekeeping, installation and use

發布時間:2022-07-14瀏覽量:0

Precautions for storage, installation and use of stainless steel flanged ball valves:

     1. The unused valve should be placed in a dry room, and a dust cover should be added to the inlet and outlet of the valve. The dust cover should not be lost during transportation and storage. If stored for a long time, the valve should be checked regularly to prevent corrosion.

     2. Before installation, both ends of the stainless steel flanged ball valve should be cleaned and the contamination caused during transportation should be eliminated.

     3. The specifications of the ball valve should be carefully checked during installation to see if it meets the technical requirements required by the platform.

     4. The stainless steel flanged ball valve can be installed anywhere in the pipeline.

     5. The valve must be fully opened or fully closed during operation, and it is strictly forbidden to act as a throttle valve, so as not to affect the sealing performance of the valve.

     6. There should be no impurities in the working medium, otherwise the service life of the valve will be affected.

     7. A rapid amount of oil mist should be added to the compressed air of the control valve, which is beneficial to the lubrication of the cylinder.


主站蜘蛛池模板: 久久影院午夜理论片无码| 高清国产一区二区三区在线 | 欧美视频一区二区2021| 免费人妻精品一区二区三区| 狠狠色噜噜狠狠狠777米奇小说| 久久ee热这里只有精品| 亚洲网站一区久久| 大又粗又硬一区二区三区免费看| 亚欧乱色国产精品免费| 久久人人爽人人爽人人片av不| 无码人妻一区二区三区兔费| 神马国产精品影院av一区| 午夜免费啪视频在线观看| 无码热综合无码色综合| 午夜成人亚洲理论片在线观看 | 欧美人妻体内射射| 亚洲男人的天堂成人www| 亚洲国产精品无码久久九九大片 | 国产精品久久久久秋霞鲁丝| 国产欧美在线亚洲一区| 亚洲人成无码网站| 忍着娇喘人妻被中出中文字幕| 成人国产一区二区三亚洲国产| 一区二区在线观看欧美日韩日韩| 亚洲中文字幕琪琪在线| 国产偷国产偷亚洲清高app| 欧美日韩不卡高清在线看| 日韩人妻一区二区三区久久| 欧美黄色精品一区二区三区| 色综合网一区二区| 一区二区三区视频精品店在线视频精品 | 日本大尺度吃奶呻吟视频| 久久国产视频一区| 日韩精品一区 中文字幕| 婷婷激情综合色五月久久竹菊影视| 一本大道东京热无码aⅴ| 日本一道人妻无码一区在线| 国产老妇伦国产熟女老妇视频| 日本午夜一区二区三区| 综合色一区二区| 亚洲中文字幕无码日韩|