English — Forum #276 (Page 43/145)

1. How to eliminate hidden dangers when chimney tilts - HCBBS Forum
2. Do liquid ammonia spheres belong to category III pressure vessels? - HCBBS Forum
3. What type of end cap is it with an inner diameter of 1600, a depth of 275, and a thickness of 10? Is it a dome-shaped head? How is the weight of this end cap calculated? - HCBBS Forum
4. Design Defense - HCBBS Forum
5. Issues to consider regarding heat insulation on the surface of stainless steel equipment - HCBBS Forum
6. Can the inspection method for the butt joint seam of the heat tracing tubes in pressure vessels be changed from MT to PT? The material is S30408 - HCBBS Forum
7. There are 20 days left until the New Year; make preparations in advance – things to keep in mind regarding air compressors before the festival - HCBBS Forum
8. The current certificate indicates the employer; if the certified person changes employers, does this certificate become invalid? Do I need to take the exam again to obtain the certificate? - HCBBS Forum
9. Key differences in inspection priorities for moving equipment and stationary equipment - HCBBS Forum
10. To weld well, controlling the molten pool is something you must learn - HCBBS Forum
11. Inspection ratio for stainless steel composite panels - HCBBS Forum
12. The issue of curvature in shell plate pressing - HCBBS Forum
13. Basic knowledge of equipment lubrication - HCBBS Forum
14. What are the methods for detecting oil content in compressed air, and what are the common measuring instruments used? - HCBBS Forum
15. Questions for mobile pressure vessel exams? - HCBBS Forum
16. Air compressor dryer tower - HCBBS Forum
17. Common corrosion parts of tower equipment - HCBBS Forum
18. Regarding the determination of the diameter and wall thickness of spherical tank supports! - HCBBS Forum
19. Repair welding measures for stainless steel equipment - HCBBS Forum
20. Sealing type for large-diameter (1500mm) ultra-high pressure equipment (120MPa) - HCBBS Forum
21. Heat treatment of equipment subjected to H2S stress corrosion - HCBBS Forum
22. Non-destructive testing ratio for low-temperature heat exchangers - HCBBS Forum
23. Seeking advice - HCBBS Forum
24. China Welding Association – Terms for Metal Arc Welding - HCBBS Forum
25. The medium is an extremely hazardous pressure vessel. Can the bursting disc be used alone? - HCBBS Forum
26. Animated video: 37 principles of chemical reactions and their dangers--- - HCBBS Forum
27. Connection type between the jacket and the cylinder body - HCBBS Forum
28. Common Terms and Explanations in Equipment Management - HCBBS Forum
29. Problems in welding dissimilar steels - HCBBS Forum
30. For 304 manhole linings made of 316 material, is it necessary to have welders skilled in surfacing welding? - HCBBS Forum
31. Classification and principles of waste heat boilers - HCBBS Forum
32. Classification of pressure vessels - HCBBS Forum
33. Precautions for welding procedure qualification - HCBBS Forum
34. [Interpretation of the Special Equipment Safety Law] Article 87 - HCBBS Forum
35. Cracking of condenser tube sheets and tube welds - HCBBS Forum
36. PVELite strength calculation: stress issues in hydrostatic testing - HCBBS Forum
37. What size air tank is needed for a pneumatic actuator? - HCBBS Forum
38. Summary of Equipment Standards [Boilers, Power Plants (Stations), Substation Equipment Standards and Specifications] List (no attachments) - HCBBS Forum
39. How should we understand the advantage of fixed-bed reactors in achieving high selectivity when the reaction is accompanied by sequential side reactions? selectivity - HCBBS Forum
40. There is a huge pressure difference between rupture disks and safety valves - HCBBS Forum
41. Air saturation tank design - HCBBS Forum
42. What information is required for a new application to obtain manufacturing qualifications approved by the Special Equipment Inspection and Research Institute? - HCBBS Forum
43. Welding after heat treatment - HCBBS Forum
44. Grinding and lapping bearing shells - HCBBS Forum
45. Design of diagonal holes in pressure vessels - HCBBS Forum
46. Blasting purging - HCBBS Forum
47. Wall thickness measurement of the coil inside the liquid chlorine vaporizer - HCBBS Forum
48. The heat exchange tubes of the bubble tray in the formaldehyde absorption tower are connected to the tower wall - HCBBS Forum
49. What causes high water content in compressed air, and how can these problems be solved? - HCBBS Forum
50. Effects of scaling up design parameters on shell-and-tube heat exchangers - HCBBS Forum
51. Questions regarding NB/T47017-2011 \"Viewports for Pressure Vessels\" - HCBBS Forum
52. Cladding welding for composite plate equipment nozzles - HCBBS Forum
53. 【I beg! ! 】Process Piping Installation Design Manual for Petrochemical Plants (Fifth Edition) - HCBBS Forum
54. Solutions to high noise in control valves - HCBBS Forum
55. Animated video: 37 principles of chemical reactions and their dangers – The Enchanting Cycle - HCBBS Forum
56. Ceramic elbow for ash transfer pipeline backpack - HCBBS Forum
57. Can the heat exchanger tube bundle be manufactured by a company with Class D manufacturing qualifications? - HCBBS Forum
58. Ultrasonic testing for non-destructive testing of pressure vessels - HCBBS Forum
59. Seeking help with SW6 installation issues - HCBBS Forum
60. The design standard for equipment manholes is HG/T21521. How should the gasket type for such manholes be selected? - HCBBS Forum
61. Analysis of Pressure Vessel Manufacturing and Deformation Control - HCBBS Forum
62. Animated video: 37 principles of chemical reactions and their dangers – blood and hydrogen peroxide - HCBBS Forum
63. Why do bolts loosen? What is preloading? - HCBBS Forum
64. General construction procedures for penetrant testing - HCBBS Forum
65. Qualification issues for ultra-high pressure equipment - HCBBS Forum
66. There is currently a gas-fired industrial boiler room. Experts say that it is not acceptable for the gas pipes to pass directly above the boiler. Could someone please explain why this is not acceptable and which standard is being violated... - HCBBS Forum
67. Are there any limits or regulatory requirements regarding the movement speed of the floating disk in internal floating roof storage tanks? - HCBBS Forum
68. What are the challenges facing the non-destructive testing industry in our country? - HCBBS Forum
69. What is the comparison between quench heat exchangers for ethylene cracking at home and abroad? - HCBBS Forum
70. Analysis of Typical Accident Cases Involving Special Equipment - HCBBS Forum
71. Looking for \"Super Stainless Steels and High-Nickel Corrosion-Resistant Alloys\" - HCBBS Forum
72. What is the unit for the mesh size of a filter screen? What is the relationship between the mesh size of a sieve filter and particle size (μm)? - HCBBS Forum
73. I would like to ask how to conduct a welding procedure qualification for welding stainless steel with stainless steel - HCBBS Forum
74. Comprehensive Database of Static Equipment 2.5 [Filtration – Filters] List (no attachments) - HCBBS Forum
75. How do people understand Clause 6.4.5.1 of GB/T 25198-2010 \"Pressure Vessel Heads\"? - HCBBS Forum
76. Scope of application for GTAW-FeIV-2FG-3/18-Fefs-02/10/12 - HCBBS Forum
77. How to solve over-temperature at the air-cooled outlet/ - HCBBS Forum
78. Understanding of 08Cr2ALMo steel - HCBBS Forum
79. What factors should be considered when selecting the pressure rating for the takeover flange? - HCBBS Forum
80. The General Administration issues the \"Guiding Opinions\" and \"Construction Standards\" to comprehensively advance the standardization and regularization of market supervision offices - HCBBS Forum
81. Is low-temperature carbon steel considered for the ammonia synthesis refrigeration process? - HCBBS Forum
82. Motor grade energy efficiency issues, please help - HCBBS Forum
83. Pressure reducing valve disassembly and construction drawing - HCBBS Forum
84. YB∕T 4001.1.2.3-2019 Steel Grating Plates and Associated Parts - HCBBS Forum
85. Reasons why the boiler water replenishing pump cannot replenish water - HCBBS Forum
86. How is tower deflection controlled? - HCBBS Forum
87. Welder’s Basics (Upper, Middle, Lower Parts) - HCBBS Forum
88. Bimetallic wear-resistant elbow - HCBBS Forum
89. What type of manhole should be chosen for storage tanks of concentrated sulfuric acid at atmospheric pressure? - HCBBS Forum
90. Animated video: 37 principles of chemical reactions and their dangers—The dazzling “cesium”” - HCBBS Forum
91. Is this calculation result wrong? - HCBBS Forum
92. What are the properties of hexafluorobutadiene in container media? - HCBBS Forum
93. The reciprocating compressor has a large head tile, please ask the teacher to help analyze the cause, thank you! - HCBBS Forum
94. Process control for stainless steel pickling and passivation - HCBBS Forum
95. Technical parameters of wear-resistant elbow - HCBBS Forum
96. Regarding the tank for storing sodium cyanide - HCBBS Forum
97. Can aluminum alloy be used with an alkaline solution that has a pH of 16 and operates at room temperature? - HCBBS Forum
98. Why use integral forgings for manhole pipes and flanges? - HCBBS Forum
99. Use of valves - HCBBS Forum
100. Are there any procedures that need to be followed to change a pressure vessel into a non-pressure vessel? - HCBBS Forum