Forged steel gate valve is suitable for pressure 1.6~42.0MPa (Class150~2500), the working temperature -29~425℃(cabon steel) or -29~500℃(stainless steel) of small diameter pipe road, used to truncate or through line in the medium, choose different material, can be respectively suitable for water, steam, oil, nitric acid, oxidizing medium, urea, and other media, In the path of the oil pipeline more application.
Forged steel gate valve are designed as reducing, port and compared with the diameter of the cast steel gate valves flow to be smaller, but the pressure and temperature range is higher than cast steel valve, sealing performance is much better than cast steel gate valves, longer life, medium flow direction as well as other gate valve is not restricted.
Product specification | Design spec | Face to Face | Flange end | Test & check | Pressure-temp |
JB/T7746 | JB/T7746 | JB/T 79 GB/T9113 HG/T20592 | GB/T 26480 | JB/T 7746 GB/T12224 |
Nominal Pressure | Strength test | Seal test | Air seal test | Applicable temperature | Suitable medium |
1.6 | 2.4 | 1.76 | 0.6 | ≤550℃ | Water、oil、steam、Nitric acid |
2.5 | 3.75 | 2.75 | |||
4.0 | 6.0 | 4.4 | |||
6.4 | 9.6 | 7.04 | |||
10.0 | 15.0 | 11.0 | |||
16.0 | 24.0 | 17.6 |
Part name | Part material | |
Body, bonnet | A105 | 1Cr18Ni9Ti |
Disc,bonnet | 20Cr13 | 1Cr18Ni9Ti |
Stem | 20Cr13 | 1Cr18Ni9Ti |
Seal ring | 1Cr13+HF | 1Cr18Ni9Ti+STL |
Packing | Flexible graphite | PTFE |
Gasket | Flexible graphite | |
Bolt | 35/35CrMo | 1Cr18Ni9Ti |
Forged Type Gate Valves Application Specification
1.Design and manufacturing: ASME/ANSI B16.34; API 602; JB/T7746
2.Connection end dimension:
(1)Socke weld end: ASME/ANSI B16.11; JB/T1751
(2)Threaded connection end: ASME/ANSI B1.20.1(NPT)GB/T7306-87(RC)
3.Structure characteristic: B.B or W.B; OS&Y
4.Main body material: A105; LF2; F5; F11; F22; F304; F316; F304L; F316L
5.Valve inspection and testing: API 598; GB/T13927
TJL INDUSTRY GROUP CO., LIMITED
Tel: 0086-22-28219562
Fax: 0086-22-28219554 ext.8888
Mobile:15022393555
Email: sales@tjlindustry.com
Address: 1-711,XiangNian Plaza, Dongjiang and Neijiang Road Cross, Hexi District, Tianjin China