English — Forum #276 (Page 32/145)

1. Why are gate valves prohibited for use in oxygen pipelines? - HCBBS Forum
2. Tube sheet thickness calculation problem - HCBBS Forum
3. Ultrasonic re-inspection after hydrostatic test - HCBBS Forum
4. Is a guardrail needed on top of a rectangular water tank? - HCBBS Forum
5. Xinrui Mini-Class || Sealing Solutions for Laminating Equipment - HCBBS Forum
6. Settlement observations are conducted regularly on storage tanks in use; what are the specific methods for such observations? - HCBBS Forum
7. Everyone, why can’t the gasket sealing surface be used in negative pressure? - HCBBS Forum
8. Safety Valve Setting Pressure Procedure - HCBBS Forum
9. How to set up a steam heating coil for horizontal equipment - HCBBS Forum
10. I would like to ask fellow Sichuanese experts how to determine the safety classification level of pressure vessels in a newly built factory for the first time - HCBBS Forum
11. [Interpretation of the Special Equipment Safety Law] Article 9** - HCBBS Forum
12. Why is the hydrostatic test pressure multiplied by the allowable stress ratio? - HCBBS Forum
13. Tube turns blue - HCBBS Forum
14. I would like to ask: under what circumstances should the weld evaluation for pressure equipment use the evaluation criteria applicable to cladding? - HCBBS Forum
15. Charging of the regenerator - HCBBS Forum
16. American standard flange sealing surface - HCBBS Forum
17. For HG/T21514~21535-2014 steel manholes, can the outer diameter of A-series fittings be used? - HCBBS Forum
18. Why are high-pressure pipelines on ships welded using gas shielded welding? - HCBBS Forum
19. 2507 Equipment Pipe Pickling and Passivation - HCBBS Forum
20. Solving common welding challenges in ferrous materials - HCBBS Forum
21. Are there manufacturers that can produce external floating roof steel floats? - HCBBS Forum
22. Recommendations for clean compressed air in pharmaceutical engineering - HCBBS Forum
23. Does anyone here know what this device is for? - HCBBS Forum
24. Treatment of pressure pipeline defects - HCBBS Forum
25. Management Measures for Key Equipment in Chemical Enterprises - HCBBS Forum
26. High-temperature and high-pressure flange leakage in residue hydrogenation - HCBBS Forum
27. Protection against vibrations in heat exchangers - HCBBS Forum
28. Material selection for high-temperature flanges - HCBBS Forum
29. What is this device? - HCBBS Forum
30. Why are bore valves difficult to open and close? How to solve it? - HCBBS Forum
31. Construction sequence for expansion welding the heat exchanger tube sheet to the tubes - HCBBS Forum
32. Regarding the selection of 800HT flanges - HCBBS Forum
33. Do negative pressure vessels consider liquid column static pressure? - HCBBS Forum
34. I’d like to recommend a CAD drawing table conversion plugin; I think it’s quite good. It is possible to export tables, as well as import them! - HCBBS Forum
35. The problem of closed-type cold water towers - HCBBS Forum
36. Round steel material standards - HCBBS Forum
37. The relationship between the color of titanium welds and welding quality - HCBBS Forum
38. Post-weld heat treatment of the pressure vessel shell reinforcement ring - HCBBS Forum
39. What kind of welding wire should be used for 321 material and 310S material? - HCBBS Forum
40. Sulfate tolerance of cement - HCBBS Forum
41. Selection of welding materials for nickel-based alloys - HCBBS Forum
42. Chinese steel grade designation method - HCBBS Forum
43. Opening equipment for pressure vessel shells - HCBBS Forum
44. The relationship between lubrication and maintenance - HCBBS Forum
45. Daily maintenance of CNC machines - HCBBS Forum
46. For the manufacturing license of Class 3 pressure vessels, which level must be met: (A2) or (D)? - HCBBS Forum
47. Basic principles for selecting welding materials - HCBBS Forum
48. Can steel sections be welded into shape, and what are the standards used? - HCBBS Forum
49. expansion joint - HCBBS Forum
50. Specifications for working inside containers and equipment - HCBBS Forum
51. Hydraulic test pressure for the coil - HCBBS Forum
52. Two months after painting the storage tank, a strip of yellow and a strip of white were found - HCBBS Forum
53. Questions regarding thermodynamics - HCBBS Forum
54. List of primary responsibilities for the safety of special equipment - HCBBS Forum
55. [Haichuan Ethylene Cracking Furnace] Research and Application of Modular Construction Technology of Large Ethylene Cracking Furnace - HCBBS Forum
56. Can a report prepared for the welding procedure qualification of titanium pressure vessels using TA2 be used to develop a welding procedure (welding operation instruction) for TA10? - HCBBS Forum
57. I would like to ask everyone about trimming the cylinder and spherical head - HCBBS Forum
58. What qualifications are required to manufacture skid-mounted pressure vessels? - HCBBS Forum
59. Do low-temperature pressure vessels necessarily have temperature measurement devices? - HCBBS Forum
60. Advantages of modified PTFE gaskets - HCBBS Forum
61. How to deal with leakage from buried impermeable tanks and ponds? - HCBBS Forum
62. 150 opinions were sought - HCBBS Forum
63. Factors affecting the service life of mechanical seals - HCBBS Forum
64. Borler Software: How to choose the pressure system type in water tube boiler calculations? - HCBBS Forum
65. Pressure vessel certificate - HCBBS Forum
66. Distributed energy systems and engineering applications - HCBBS Forum
67. Quality requirements for valves in high-pressure hydrogenation units - HCBBS Forum
68. What should be the bending radius for bent channel steel [28A]? - HCBBS Forum
69. I use welding rods every day. Do you know what function the flux coating serves? - HCBBS Forum
70. What is grade “0” oil-free compressed air? - HCBBS Forum
71. I found this thing in the cooling tower pool; I don’t know what it is. Please help! ! - HCBBS Forum
72. How can one quickly accumulate wealth points - HCBBS Forum
73. Why is grade 1.6 used instead of grade 1.5 in the accuracy classes of general pressure gauges? - HCBBS Forum
74. Why is there still no news regarding the continuing education for pressure vessel inspection certificates this year? - HCBBS Forum
75. Atmospheric pressure vessel----flat cover - HCBBS Forum
76. Why are there fewer posts about static equipment these days? - HCBBS Forum
77. What is the current version of API SPEC 5CT, the Specification for Casing and Tubing? - HCBBS Forum
78. Vibration calculation of steel structures - HCBBS Forum
79. Get some air - HCBBS Forum
80. Comprehensive and detailed guidelines for using compressed air in the pharmaceutical industry - HCBBS Forum
81. Scope of test pieces for heat treatment in welding procedure qualification - HCBBS Forum
82. Which materials have a tendency to develop reheat cracks? - HCBBS Forum
83. Classification of forging grades - HCBBS Forum
84. Advantages, disadvantages, and application ranges of O-rings made from different materials - HCBBS Forum
85. Key points in the design of steam pipelines for chemical plants - HCBBS Forum
86. Stainless steel corrosion - HCBBS Forum
87. Are there detailed design drawings for a mesh mist eliminator? - HCBBS Forum
88. When defining the volume of a pressure vessel as 0.03 m3, is this volume excluding the volume of the material filled inside it? - HCBBS Forum
89. Material selection issues for 85% concentrated phosphoric acid at 108°C - HCBBS Forum
90. Repair of flange sealing surface damage - HCBBS Forum
91. How are the steam and liquid exhaust ports managed? - HCBBS Forum
92. Regarding the supervision and inspection of pressure pipelines - HCBBS Forum
93. What is the difference between stainless steel and stainless iron? How to tell? - HCBBS Forum
94. Do titanium containers need pickling and passivation? - HCBBS Forum
95. 10 things to note when welding 4130 chromium-molybdenum material - HCBBS Forum
96. Classification methods for steel pipes - HCBBS Forum
97. The problem of high discharge temperature of ice wheel twin-screw compressor (oil pump injection) - HCBBS Forum
98. Is the PSA nitrogen generation adsorption cylinder considered a simple device or a type of pressure vessel? - HCBBS Forum
99. hydrogen embrittlement - HCBBS Forum
100. Why does steel pipe need to undergo heat treatment? - HCBBS Forum