English — Forum #92 (Page 10/86)

1. A671 Gr CC60 – what does CC stand for? - HCBBS Forum
2. Regarding the matching issue of loose-flange connections - HCBBS Forum
3. 475 Manual Controller - HCBBS Forum
4. I would like to ask about the manufacturing process flow for the valve disc of AVK soft-sealed gate valves - HCBBS Forum
5. [Ten years of development of chemical equipment] 1202-2023 Vacuum jacketed cryogenic valve for liquid hydrogen passed the liquid hydrogen internal cooling method type test - HCBBS Forum
6. There are no 16Mn forgings in GB/T20801.1-2025 - HCBBS Forum
7. Installation issues of the inner nut in compound tie-rod type bellows compensators - HCBBS Forum
8. How to select a valve? Valve selection criteria - HCBBS Forum
9. Analysis of Sealing Problems in High-Temperature Butterfly Valves - HCBBS Forum
10. Help needed - HCBBS Forum
11. Regarding the selection of temperature adjustment coefficients in the formula for calculating wall thickness of pipelines - HCBBS Forum
12. Regarding the selection of pressure for hydrotesting - HCBBS Forum
13. How to choose a valve for saline media? - HCBBS Forum
14. Valve mounting bolts - HCBBS Forum
15. May I ask what the static head of the system in the diagram is? - HCBBS Forum
16. Problems with flange mechanical performance testing - HCBBS Forum
17. Calculation of gas pressure drop - HCBBS Forum
18. Structure and installation method of high-pressure resistant check valves - HCBBS Forum
19. Flow rate control for steam purging? - HCBBS Forum
20. Issues regarding the leak testing and cleaning of concentrated sulfuric acid storage tanks and pipelines - HCBBS Forum
21. In high differential pressure conditions, the valve spool in control valves can rotate. Therefore, how should the issue of preventing rotation be taken into account during the valve design phase? And how can it be calculated and analyzed to determine under what operating conditions the valve spool will rotate? - HCBBS Forum
22. Request for pipeline diameter calculation - HCBBS Forum
23. I’m seeking expert advice on how to select and use hydrogen fluoride cylinder connectors - HCBBS Forum
24. When installing a clamp-type check valve, can the ball valve flange on the original pipeline be used? - HCBBS Forum
25. Which company makes the best check valves with a pressure difference of less than 1 KPa? - HCBBS Forum
26. Abbreviation indicating the type of valve - HCBBS Forum
27. 316Ti stainless steel seamless tube - HCBBS Forum
28. Let's all take a look at this valve - HCBBS Forum
29. What is the difference between octagonal pads, lens pads, and elliptical pads? - HCBBS Forum
30. Classification and properties of silicon carbide materials - HCBBS Forum
31. Can large and small end flanges be welded directly to flat weld flanges? Is it not necessary to add a straight pipe section in the middle? - HCBBS Forum
32. What are the reasons for the rotation of the stem in a straight-stroke control valve? - HCBBS Forum
33. Can 93% sulfuric acid be stored in rubber-lined tanks? - HCBBS Forum
34. Urgent! Do all valves except those for remote control need to be operated manually? - HCBBS Forum
35. Pipeline blockage - HCBBS Forum
36. Solutions to common faults of control valves - HCBBS Forum
37. Selection of the model for the check valve at the outlet of the negative pressure pump - HCBBS Forum
38. Will formaldehyde crystallize? - HCBBS Forum
39. I ran into an awkward problem: the use of the filter - HCBBS Forum
40. What are the general requirements for installing valves? - HCBBS Forum
41. Introduction to Polyurethane Composite Pipes - HCBBS Forum
42. Steam pipeline pier - HCBBS Forum
43. Who has the electronic versions of \"Pipeline Stress Analysis and Vibration Noise Control\" and \"Pipeline Stress Analysis and Engineering Applications\"? - HCBBS Forum
44. How to interpret - HCBBS Forum
45. Pipes and fittings - HCBBS Forum
46. The pipe flange is of DN300 PN2.5 European standard. How should the corresponding wound gasket be specified? - HCBBS Forum
47. How to remove bubbles inside pipes? - HCBBS Forum
48. Find manufacturers specialized in importing welded chlor-alkali valves - HCBBS Forum
49. Problems with pipeline pressure testing - HCBBS Forum
50. What kind of valve is this? - HCBBS Forum
51. Common faults of control valves and their solutions - HCBBS Forum
52. Is there a connection between ASME B36.10 and ASTM A333? - - HCBBS Forum
53. Emergency pressure relief manhole - HCBBS Forum
54. Is it necessary to shut down the operation and empty the system for regular inspections of pressure pipelines? - HCBBS Forum
55. Import valve code - HCBBS Forum
56. For pipes without expansion joints, is there any unbalanced internal pressure force due to the thrust of the fixed supports? - HCBBS Forum
57. Is natural gas used as the instrument air when selecting pneumatic valves? - HCBBS Forum
58. Nitrogen seal valve - HCBBS Forum
59. What conditions must existing pipelines meet in order to be reused? - HCBBS Forum
60. HanTantalum Product Catalogue | Tantalum alloy pressure relief valves - HCBBS Forum
61. Knowledge on the measurement of flow meters - HCBBS Forum
62. Why do the ends of the penetration sleeve need to be sealed? - HCBBS Forum
63. How to install a check valve - HCBBS Forum
64. The Z41Y-100I valves used by the unit are leaking during operation - HCBBS Forum
65. Application of all-metal hard-sealed butterfly valves in low-temperature valves - HCBBS Forum
66. The steam drum gasket was incorrectly fitted with an internal steel ring wound gasket. Why can’t internal steel ring gaskets be used? - HCBBS Forum
67. There is a non-standard flange on site, and standard gaskets are required; by how much can the gasket protrude beyond the inner diameter of the pipe? - HCBBS Forum
68. Yangzhou Chengde Heavy Industry applies for a patent for a sizing production method for large-diameter seamless steel pipes that reduces the number of heating cycles required in steel pipe production - HCBBS Forum
69. Steel pipes for hydrogen storage and transportation pipelines GB/T20801.5-2025 Pipelines for hydrogen use - HCBBS Forum
70. Pipeline weld proportion detection - HCBBS Forum
71. Butterfly valve manufacturing matters - HCBBS Forum
72. May I ask whether the valve stems 17-4PH for ball valves and butterfly valves can be used with media such as methanol, crude methanol, and MTO-grade methanol? - HCBBS Forum
73. Jacket tube issue - HCBBS Forum
74. What are the requirements for steam traps in applications with superheated steam? - HCBBS Forum
75. Pure titanium, low hydrogen, low iron - HCBBS Forum
76. What to do about minor leaks at the orifice plate connections - HCBBS Forum
77. Gasket material, type - HCBBS Forum
78. 【Haichuan Equipment Guessing Game】Valve Array - HCBBS Forum
79. safety valve - HCBBS Forum
80. What material is 17-7? - HCBBS Forum
81. Xiaobai asks: What is used to wrap around the perimeter of a flange seal? - HCBBS Forum
82. Selection of materials for pressure pipeline design and examples of pipeline design - HCBBS Forum
83. Reason why GB711 is used instead of 8163 for pipe caps - HCBBS Forum
84. Guoyang-Baiyun Ebo Natural Gas Pipeline Project in Western Inner Mongolia - HCBBS Forum
85. I’ve started working on the pipeline design, but I don’t have any PDS tutorials available; could someone experienced share one with me? - HCBBS Forum
86. Is the gate valve airtight? - HCBBS Forum
87. Issues regarding the format of the permit seal for pressure pipeline design - HCBBS Forum
88. When a steam pipe passes through a fire wall, can it be moved back and forth after the opening is sealed? - HCBBS Forum
89. Buried steam pipes - HCBBS Forum
90. Regarding the orientation issue of slip joints - HCBBS Forum
91. Communicative Linguistics* - HCBBS Forum
92. Urgent! Insulation issues for high-temperature pipe supports - HCBBS Forum
93. Oxygen valve - HCBBS Forum
94. What are the thread specifications for the shut-off valve with DN15 size of J11H-16RL? - HCBBS Forum
95. Are there any application examples of silicone rubber gaskets in chemical pipelines? How effective is it? - HCBBS Forum
96. Problems with pipeline welding - HCBBS Forum
97. What is the difference between the \"Series for the Selection of Plastic-Lined Steel Pipes and Fittings\" and \"Plastic Linings for Steel Pipes and Fittings\"? - HCBBS Forum
98. Seeking help regarding the issue of the main pipe connecting to the branch pipes - HCBBS Forum
99. Are the threads on the stem of a straight-through gate valve all counter-clockwise? - HCBBS Forum
100. 【Ten Years of Rapid Development in Chemical Engineering Equipment】2016 – Successful development of straight-seam submerged arc welded pipes for transporting supercritical carbon dioxide, with maximum pipe diameters and wall thicknesses achieved - HCBBS Forum