English — Forum #92 (Page 13/86)

1. CNPC has applied for patents related to the inspection of hot-melt joints in polyethylene pipes, which can detect various types of defects - HCBBS Forum
2. Selection of the thickness for welding blind plates - HCBBS Forum
3. On the use of ferrule connectors in vacuum systems - HCBBS Forum
4. Valve fire resistance calculation - HCBBS Forum
5. Do the valves and associated flanges require anti-corrosion treatment? - HCBBS Forum
6. Selection of fittings for copper pipes in refrigeration systems - HCBBS Forum
7. Questions about ASTM A234 - HCBBS Forum
8. pipeline - HCBBS Forum
9. expansion joint - HCBBS Forum
10. Can PE pipes transport a 25% calcium chloride solution at -20 degrees Celsius? - HCBBS Forum
11. Seeking advice on inner tube elbows - HCBBS Forum
12. TSGZ6002-2026: Latest regulations for welder examinations – Discussion on base metal requirements - HCBBS Forum
13. Effective measures to prevent internal leakage in valves - HCBBS Forum
14. The flange of the flange butterfly valve is inconsistent with the standard flange - HCBBS Forum
15. What is the actual direction of this control valve? - HCBBS Forum
16. Can Honeywell’s DCS determine the on/off status of the XV valve by looking at the curves? - HCBBS Forum
17. The Pipeline Bureau has filed for a patent to fill the gap in China regarding the use of foam concrete filling technology in shield tunnels for oil and gas pipelines that cross rivers - HCBBS Forum
18. Valve flow and flow resistance testing - HCBBS Forum
19. Discussion on pressure relief valves - HCBBS Forum
20. Do valve connection flanges need to be distinguished between Series A and B? - HCBBS Forum
21. SY/T 5037 & GB/T 3091 - HCBBS Forum
22. The standard drawing for pipe racks, HG/T 21629-2021, is about to be implemented - HCBBS Forum
23. Common faults of butterfly valves and their troubleshooting methods - BONAI Precision Control - HCBBS Forum
24. Parameter issues of control valves - HCBBS Forum
25. What are the typical application scenarios for graphite packing? - HCBBS Forum
26. Differences between 8.8 grade and 10.9 grade bolts - HCBBS Forum
27. 【Ten Years of Rapid Development in Chemical Equipment】The domestic development and application of urea-grade austenitic stainless steel materials from 2687 to 2025 have passed technical appraisal - HCBBS Forum
28. The issue of the minimum wall thickness of gate valve bodies - HCBBS Forum
29. The pipeline is humming; what’s going on? - HCBBS Forum
30. Daily troubleshooting of vortex flowmeters - HCBBS Forum
31. Expander high-pressure throttle valve - HCBBS Forum
32. How can the same temperature measurement point have different temperatures under different control steps? - HCBBS Forum
33. Selection of bolt materials for stainless steel flanges under high pressure - HCBBS Forum
34. CL-ion corrosion, carbon steel pipes - HCBBS Forum
35. Flange welding - HCBBS Forum
36. Some questions regarding oxygen pipeline installation - HCBBS Forum
37. This valve is on the chemical dosing unit; it’s a pump-valve combination. Which manufacturer makes it? Does it work on the same principle as a metering pump? ? ? - HCBBS Forum
38. I have a question regarding the use of metal wound gaskets - HCBBS Forum
39. Enameled steel reactor discharge valve - HCBBS Forum
40. Questions about pipeline pressure rating - HCBBS Forum
41. Pipeline design issues: how is the coefficient for pipe weld joints taken into account? - HCBBS Forum
42. Gate valve model Z1A22C-S - HCBBS Forum
43. Help! Steam pressure: 0.8. Methods to reduce it to 0.05–0.09 MPa. Thank you - HCBBS Forum
44. Commercial-grade hex head bolts - HCBBS Forum
45. What are the problems with the wall thickness of oxygen pipelines being thinner than that of elbows? - HCBBS Forum
46. What do the numbers on this butterfly valve mean? - HCBBS Forum
47. Common problems during the commissioning of Siemens PS2 valve positioners - HCBBS Forum
48. For coal water slurry gasification units – what is it? Attach a picture - HCBBS Forum
49. three-way valve - HCBBS Forum
50. Specifications for jacket construction and acceptance - HCBBS Forum
51. I might not have made myself clear in the previous post; I’m not trying to conduct experiments to carry out this process, but rather I want to know if this is indeed the case in reality - HCBBS Forum
52. Helium leak detection contractor - HCBBS Forum
53. Regarding sandblasting of carbon steel pipes, the issue of sand selection - HCBBS Forum
54. LPG tank dehydration valve – spring quick-close valve? - HCBBS Forum
55. Piping purging and cleaning - HCBBS Forum
56. What do the welding symbols in a single-line diagram mean? - HCBBS Forum
57. Deleted - HCBBS Forum
58. Which software is more practical for 3D design of ball valves? - HCBBS Forum
59. A set of standards is missing; I earnestly ask experts for their help - HCBBS Forum
60. Setting of the pressure relief valve - HCBBS Forum
61. Flue gas pipes require welded lining plates at the joints; what is the function of these plates? - HCBBS Forum
62. GBT 19520.16-2015 Parts 3-100: Basic dimensions of panels, plug-in boxes, enclosures, frames, and cabinets - HCBBS Forum
63. Help needed, issue with valve spools! - HCBBS Forum
64. pipe flow expert - HCBBS Forum
65. Steam regenerator - HCBBS Forum
66. Tantalum-nickel surface alloy ball valve - HCBBS Forum
67. [Process Engineering Division – Pipeline and Valve Technology Exchange Forum – Daily Question – Questions 03–12] - HCBBS Forum
68. How is pressure testing conducted on high-pressure welding valves? - HCBBS Forum
69. Discussion on issues related to welding procedure qualification - HCBBS Forum
70. Successful trial production of Bohai Equipment’s dense-phase/supercritical carbon dioxide pipeline elbows - HCBBS Forum
71. Questions regarding centralized oil supply pipelines - HCBBS Forum
72. Storage with 20% NaOH - HCBBS Forum
73. Question about STUDDED BRANCH FITTING and LINK SEALS - HCBBS Forum
74. Setup of inspection passages in utility tunnels - HCBBS Forum
75. Classification of valves and valve testing standards - HCBBS Forum
76. Pressure rating of the glass level gauge at the boiler site - HCBBS Forum
77. Selection of the width of the gasket in the valve head - HCBBS Forum
78. Are there standard clamps (grooved pipe fittings) with a pressure rating of over 3 Mpa? - HCBBS Forum
79. Operating conditions of double-eccentric butterfly valves - HCBBS Forum
80. Questions regarding pressure-controlled check valves - HCBBS Forum
81. Are there safety valves that allow the unloading pressure to be adjusted remotely? - HCBBS Forum
82. Issues regarding the application of asbestos rubber sheets - HCBBS Forum
83. Regarding pressure pipeline issues - HCBBS Forum
84. Pump outlet pipeline - HCBBS Forum
85. Natural compensator settings - HCBBS Forum
86. Experts, what material should be used for acetic acid pipelines to prevent corrosion? - HCBBS Forum
87. Everyone gets confused about pipe diameters; here’s some material to share - HCBBS Forum
88. Problems with pipeline layout - HCBBS Forum
89. Questions about valve models - HCBBS Forum
90. The application of industrial endoscopes in the inspection of pipeline welding quality - HCBBS Forum
91. Discussion on the minimum setting pressure of safety valves - HCBBS Forum
92. Regulations on the number of times pipe welds can be repaired - HCBBS Forum
93. What is the casting grade for 321? - HCBBS Forum
94. Fire separation distances for Class A factory buildings, and Class A and E factory buildings - HCBBS Forum
95. Control valve - HCBBS Forum
96. How to calculate the corrosion rate of pipe wall thickness. - HCBBS Forum
97. Is the proportion of radiographic testing for metal pipes related to the method of installation? Buried, overhead, etc - HCBBS Forum
98. Under normal circumstances, for ball valves, globe valves, and gate valves, which has a higher likelihood of internal leakage or external leakage? - HCBBS Forum
99. Issues regarding the selection of HG/T20553 Ⅰa versus its supply as Ⅰb - HCBBS Forum
100. Discussion on the welding of 310s (0Cr25Ni20) stainless steel - HCBBS Forum