亚洲日韩精品欧美一区二区I国产大片黄色Iav日韩国产I国产黄a三级I中文av一区二区I特黄特色特刺激视频免费播放I久草网站在线I天天操天天射天天爽Iav大片网址I精品视频网站I一本色道久久综合亚洲二区三区I中文字幕乱码亚洲精品一区I国产精品wwwwwwI综合网色I国产一级精品绿帽视频I免费在线成人av电影I天天干天天看I成人影视免费看I欧美一区二区精品在线I国产精品高清av

current location: Home   >> News >> Company news

How to use an ammonia ball valve

The use of ammonia ball valve mainly has the following five steps:

(1) according to the use of different requirements, ammonia reducing valve has many specifications. The high inlet pressure of Z is mostly, and the low inlet pressure of Z is not less than 2.5 times of the outlet pressure. Export pressure specifications are more, generally, Z high export pressure is.

(2) when installing the ammonia ball valve, make sure whether its connection specifications are consistent with the joints of the system used. The ammonia ball valve adopts the hemispherical connection, which is completely matched by the nut.

Therefore, the two hemispheres should be kept clean when using to ensure a good airtight effect. Dust can be blown off with high pressure gas before installation. If necessary, ptfe can also be used as washers.

(3) ammonia ball valve should be strictly prohibited to contact grease, so as to avoid fire accidents.

(4) when stop working, the remaining air in the reducing valve should be removed, and then loosen the adjusting screw to avoid deformation of the elastic element under pressure for a long time.

(5) ammonia ball valve should avoid impact vibration, not contact with corrosive substances.


主站蜘蛛池模板: 在线视频夫妻内射| 国产熟妇搡bbbb搡bb七区| 性生交片免费无码看人| 亚洲精品乱码日本按摩久久久久 | 无码人妻精品一区二区三| 无套中出丰满人妻无码| 国产xxxx视频在线观看| 纯肉无遮挡无码日本动漫| 久久久久久国产精品无码超碰动画 | 四虎影视在线影院在线观看| 国产一区二区野外| 高潮毛片无遮挡高清视频播放| 国产精一品亚洲二区在线播放| 婷婷色婷婷开心五月四房播播久久| 人人玩人人添人人澡免费| 国产精品福利2020久久 | а天堂中文官网| 欧美z0zo人禽交欧美人禽交| 亚洲人成网站在线播放942| 欧美精品国产制服第一页| 亚洲熟妇自偷自拍另欧美| 99久久婷婷国产综合亚洲| 国产成+人+综合+亚洲欧美| 亚洲老鸭窝一区二区三区| 国产高清不卡一区二区| 人妻aⅴ无码一区二区三区| 亚洲成色在线综合网站免费| 日本强伦姧熟睡人妻完整视频| 制服丝袜国产av无码| 成人毛片18女人毛片免费| 国产大片黄在线观看| 欧美日韩亚洲国产综合乱| 久久久久99精品成人片直播| 久久大香香蕉国产免费网动漫 | 久久精品久久电影免费理论片| 永久免费的av在线网无码| 92电影网午夜福利| 99精品久久久久久久婷婷| 无码成人网站视频免费看| 国产亚洲综合aa系列| 成人午夜又粗又硬又长|