亚洲精品国产成人AV麻豆_成人毛片18女人毛片免_熟妇无码视频在线播放_日日夜夜狠狠操B视频_激情无码综合一区二区_欧美国a级毛一级_黄色三级在线观看_苍井空无码丰满尖叫高潮_妺妺窝人体色WWW网站孕妇_2021给个免费网站好人有好报

Technical Parameters

Product model: Q367F
Nominal diameter: DN500~1600mm, NPS20 "~64"
Nominal pressure: PN1.6~2.5Mpa, Class150~300LB
Applicable temperature: -29 ℃≤t≤200 ℃
Drive mode: electric, manual, worm gear drive, gear drive, etc
Design Specification: API 6D, ASMEB 16.34
Pressure-temperature rating: ASME B16.34, API608
Structure length: ASME B16.10, GB12221
Butt weld end form: ASME B16.25, ASME B31.4/31.8
Inspection and Testing: API 598, API 6D, GB13927
Fire resistance test: API 607, API 6FA

Product overview

Body joint is fully welded that eliminates external leakage through body joint. The valves are specially suitable for long distance buried pipelines with rigorous service conditions, such as city gas, city heating, petrochemical plants and etc.

The main structure features include:

1.Flow resistance is small；

2.Piston seat, fire safe, antistatic design；

3.No limitation on the flow direction；

4.When valve is in full open position, seat surfaces are outside flow stream that always in full contact with gate that can protect seat surfaces, and suitable for pigging pipeline;

5.Spring loaded packing can be chosen;

6.Low emission packing can be chosen according to ISO 15848 requirement;

7.Stem extended design can be chosen;

8.Metal to metal seat design can be chosen;

9.DBB，DIB-1，DIB-2 structure can be chosen；

10.The ball is fixed with a supporting plate and a fixed shaft;

11.Single welding joint or double welding joint design can be chosen.

Main connection size