久久5-久久6国产-久久91-久久91av-亚洲aaa视频-亚洲a毛片

中文TELEPHONE:0577-67017717

News/News information

The current position:Home >News information

Release time: 2018.12.05 viewed:  
  

Test Procedure for Cast Steel Globe Valve with Additional Back Pressure

The main function of globe valve is to regulate the flow of a valve in the pipeline system. Compared with other valves, it has less friction on the sealing surface during the opening and closing process, durable, simple structure, convenient maintenance and installation, so it has a very wide range of applications.

Design standard

Design and Manufacture: Cast Steel Globe Valve According to BS 1873 and ASME B16.34


Inspection and test: API 598 flange connection: ASME B16.5

Butt welding end: ASME B16.25

Structural length: ASME B16.10

Temperature and pressure grade: ASME B16.34

Form of operation:

Generally speaking, handwheel drive or gear drive method is adopted, and sprocket drive or electric device can be adopted according to user's needs.

Previous:

Next:

About us
About Us
Zhejiang mingyi valve technology co. LTD
Contact person: Alex Liu - Manager
Tel: +86 577 67017717
Fax: +86 577 67017718
Mobile: +86 13868321823
Email: myv01@myvalvemyv.com
Address: no.7938, yangguang avenue, oubei town, yongjia county, zhejiang province 
Turn on scan
主站蜘蛛池模板: 日韩精品一区二区三区毛片 | 欧美精品三区| 欧美手机看片| 女人被男人桶| 毛片大全在线观看| 黄色影院在线观看视频| 国产亚洲精品2021自在线| 国产美女野外做爰| 超矿碰人人超人人看| 91pao强力打造免费高清| 在线观看国产精品入口| 亚洲人成一区二区三区| 香蕉国产人午夜视频在线| 日韩经典欧美精品一区| 欧美精品色视频| 久久三级毛片| 狠狠色狠狠色综合久久一| 国产爽的冒白浆的视频高清| 国产精品18久久久久久vr| 成人国产精品毛片| 中文字幕免费在线视频| 亚洲欧美一区二区三区久本道 | 亚洲欧美一区二区三区四区| 婷婷国产成人久久精品激情| 日本在线免费视频| 女人张开腿让男人桶视频 | 久久永久免费| 国产精品久久毛片蜜月| a理论片| 亚洲精品人成网在线播放影院| 日本黄色大片免费观看| 久久亚洲精品永久网站| 国产在线观看免费一级| 国产99久久| 91精品国产手机| 亚洲成年www| 欧美极品在线| 国产美女做爰免费视| 在线亚洲精品国产成人二区| 日韩欧美特级毛片| 久久久99精品免费观看|