English — Forum #276 (Page 33/145)

1. Announcement from the Special Equipment Bureau of the General Administration: Two TSG safety technical specifications are now open for public comments! - HCBBS Forum
2. What are the technical requirements for the design and fabrication of 904L containers? - HCBBS Forum
3. Assembly method of modular mechanical seals - HCBBS Forum
4. Common faults in rotating machinery - HCBBS Forum
5. How should the minimum wall thickness for takeover be determined? - HCBBS Forum
6. What tasks are required for the spheroidization of 12Cr1MoV pipes in boiler superheaters to grade 4.5? - HCBBS Forum
7. Issues regarding heat treatment for GB/T151 cases with lateral openings exceeding 1/3 of the cylinder’s inner diameter - HCBBS Forum
8. I have a question: can E2594 be used for welding the 2205 transition layer? - HCBBS Forum
9. The material is WCB; should it be classified as carbon steel or low-alloy steel? - HCBBS Forum
10. What are the differences between plate towers and packed towers? - HCBBS Forum
11. Design of jacketed towers - HCBBS Forum
12. Reasons for bearing noise, inspection methods, solutions, and storage methods - HCBBS Forum
13. Is the smaller the pipe diameter, the greater its pressure resistance? - HCBBS Forum
14. Several heat treatment issues that mislead people - HCBBS Forum
15. For post-weld heat treatment of pressure vessels, what do I use to inspect it? - HCBBS Forum
16. 【Pipe Q&A】Pipeline Issues Q&A - HCBBS Forum
17. FAQs on common problems with pressure vessels - HCBBS Forum
18. Analysis of Issues Related to the Installation Management of Chemical Equipment and Countermeasures - HCBBS Forum
19. TELLTALE HOLES: Have you ever seen these kinds of holes? - HCBBS Forum
20. Stainless Steel Composite Materials (Promotional Poster) - HCBBS Forum
21. Separation of salt, aged resin, and toluene mixture - HCBBS Forum
22. Are the shims used for equipment installation generally provided by Party A or Party B? - HCBBS Forum
23. Is the oil-gas separator in modular screw air compressor units subject to special equipment regulations? - HCBBS Forum
24. In the data entry for the SW6 heat exchanger tube sheet, the \"medium properties\" that need to be filled in refer to the properties of the medium in the tube side or the shell side? - HCBBS Forum
25. Why can’t I access the Shen Hui Welding Forum? Thank you to the teachers on the forum who shared their insights. - HCBBS Forum
26. Is preheating required before cladding welding? - HCBBS Forum
27. Advantages and disadvantages of mechanical seals - HCBBS Forum
28. Is it necessary to define a positive deviation for the wall thickness tolerance of heat exchange tubes? - HCBBS Forum
29. Issues regarding the review of pressure pipeline drawings - HCBBS Forum
30. What type of grinding disc is suitable for grinding relatively hard materials, such as high-strength steels like P91 and P92? - HCBBS Forum
31. How to conduct a hydraulic test on a spherical tank? - HCBBS Forum
32. I have special equipment UT RT MT PT ET; are there any companies interested? - HCBBS Forum
33. Steel surface treatment rust removal grades - HCBBS Forum
34. Heat exchanger products require overall heat treatment; is heat treatment also necessary for the weld evaluation of the heat exchange tubes and tube sheets? - HCBBS Forum
35. Shell-and-tube heat exchanger with extractable tube bundles - HCBBS Forum
36. Notice on Holding the “First Training Session on Boiler and Pressure Vessel Standards in 2023” - HCBBS Forum
37. Looking for companies that have manufactured 12Cr2Mo1R equipment - HCBBS Forum
38. How much does it cost to obtain a special equipment supervisor certificate? Does it include the total cost of enrolling in courses, training, registration, taking exams, and obtaining the certificate? - HCBBS Forum
39. Basic principles of valve sealing surface grinding - HCBBS Forum
40. Pressure vessel manufacturing equipment - HCBBS Forum
41. I would like to ask what causes a loud roaring sound from the exhaust silencer - HCBBS Forum
42. Methods for high tower design in ASME standards - HCBBS Forum
43. Hardcore content: A comprehensive guide to pipes and fittings - HCBBS Forum
44. Can a flame arrester be installed behind a safety valve? - HCBBS Forum
45. A small question about threads - HCBBS Forum
46. Welding materials - HCBBS Forum
47. The helpless spirit of craftsmanship! - HCBBS Forum
48. How to carry out equipment maintenance after the plant stops operating - HCBBS Forum
49. Major hazard sources of level I and II should be equipped with SIS - HCBBS Forum
50. There is a pit on the bottom surface of the seal groove of the ring joint flange (RJ) - HCBBS Forum
51. Questions about the corrosion requirements in GB/T 150.4? - HCBBS Forum
52. Equipment heat treatment - HCBBS Forum
53. Advantages and disadvantages of mechanical seals - HCBBS Forum
54. High current in the liquid ring compressor - HCBBS Forum
55. Can 4 SP-type side wall plate lugs be used? - HCBBS Forum
56. Valve selection - HCBBS Forum
57. Basic knowledge of safety valves - HCBBS Forum
58. What is the minimum nominal diameter for 6kg steam industrial pipes that does not classify them as pressure pipes? - HCBBS Forum
59. How to calculate the square holes in the end cap? - HCBBS Forum
60. Is the orientation of the pipe ends on the as-built drawing indicated in this diagram? - HCBBS Forum
61. Common sense! 40 facts about the safety of special equipment - HCBBS Forum
62. What are the consequences of reducing the pump’s outlet size? - HCBBS Forum
63. Bolt knowledge sharing - HCBBS Forum
64. Plan for the first operation of the spherical tank - HCBBS Forum
65. [Interpretation of the Special Equipment Safety Law] Article 100 - HCBBS Forum
66. Function and selection of double-headed bolts - HCBBS Forum
67. Why do welds crack? - HCBBS Forum
68. Are there any calculations and manufacturing standards **or industry standards for the pressure relief manholes of storage tanks? - HCBBS Forum
69. Rework of container welds - HCBBS Forum
70. Renewal of pressure vessel licenses across provinces - HCBBS Forum
71. Why should a stop valve have the inlet at a lower level and the outlet at a higher level? Under what circumstances does high inflow occur alongside low outflow? - HCBBS Forum
72. Nameplate issue - HCBBS Forum
73. Domestic manufacturers that excel in producing aluminum chemical equipment - HCBBS Forum
74. If the design temperature of the container is above room temperature (25°C), there’s no need to conduct impact tests, right? - HCBBS Forum
75. Design temperature: -110, material: S30408 - HCBBS Forum
76. The “three major problems” in welding high-strength weathering steel and their solutions - HCBBS Forum
77. Should pressure gauges on special equipment be subject to mandatory calibration or verification? - HCBBS Forum
78. Welding engineer - HCBBS Forum
79. Heat exchanger tube/plate welding procedure qualification - HCBBS Forum
80. Is the main focus of inspections \"patrolling\" or \"inspection\"? - HCBBS Forum
81. Can the welding procedure qualification for Q345R cover Q345R (R-HIC)? - HCBBS Forum
82. How should the longitudinal and circumferential seams of the skirt be classified as welds? - HCBBS Forum
83. How to calculate the set pressure of a safety valve? - HCBBS Forum
84. Detection methods and classification criteria for diffused hydrogen content in welding materials (weld metal) - HCBBS Forum
85. Hey, take a look – the various aspects of stainless steel expansion jointing - HCBBS Forum
86. Classification of design errors in pressure vessels - HCBBS Forum
87. Holes are made in the light-transmitting cover of the storage tank - HCBBS Forum
88. Can 10.9 grade and 35CrMo fully threaded studs be used interchangeably? - HCBBS Forum
89. The four fires in heat treatment - HCBBS Forum
90. Xinrui Mini-Class || Exploring Chemical Reactors - HCBBS Forum
91. What welding wire is used for welding Q345R, 20, and S31603? - HCBBS Forum
92. Capacity on the nameplate - HCBBS Forum
93. Problems with pre-welded parts in heat treatment equipment - HCBBS Forum
94. The main material of the container is 316L; can 304 be used for the support pads? - HCBBS Forum
95. Seal for as-built drawings of pressure pipeline construction - HCBBS Forum
96. Comprehensive Catalog of Pressure Vessel Standards 2023 - HCBBS Forum
97. Reasons for stainless steel corrosion - HCBBS Forum
98. Measures to improve the fatigue strength of welded structures - HCBBS Forum
99. Degreasing of oxygen pipelines - HCBBS Forum
100. Do all blast discs need to be replaced annually? - HCBBS Forum