English — Forum #276 (Page 55/145)

1. Which material is suitable for manufacturing concentrated sulfuric acid with a concentration of 96%–98.5% while meeting safety requirements? - HCBBS Forum
2. Fluidized bed incinerator for burning viscous waste liquids (asphalt-like) - HCBBS Forum
3. I would like to ask where the pressure relief hole of a safety valve is located - HCBBS Forum
4. How to install series-connected equipment; issues regarding supervision and inspection - HCBBS Forum
5. How to determine the design pressure of liquid ammonia storage tank? - HCBBS Forum
6. Heat treatment to eliminate cold work hardening; can this heat treatment be carried out simultaneously with the post-weld heat treatment of the equipment? - HCBBS Forum
7. Effect of primary phase structure and secondary phases on the properties of stainless steel - HCBBS Forum
8. Regarding attachments for horizontal containers - HCBBS Forum
9. On the issue of anti-corrosion painting for carbon steel submersible pumps and the inner walls of tanks - HCBBS Forum
10. Conical-bottom storage tank for powder materials, issues with the ventilation system setup - HCBBS Forum
11. Do conical heads and cones with seams require 100% PT? - HCBBS Forum
12. Exhaust gas treatment in the RTO furnace exceeds standards - HCBBS Forum
13. take over - HCBBS Forum
14. Issues regarding the determination of the nominal thickness of EHA end caps - HCBBS Forum
15. [2016] - HCBBS Forum
16. Summary of Technical Requirements for Pressure Vessels (39) - HCBBS Forum
17. Who has the construction drawings for manholes according to HG/T21520? - HCBBS Forum
18. Summary of Technical Requirements for Pressure Vessels (29) - HCBBS Forum
19. Nitric acid storage tank material selection - HCBBS Forum
20. Is an atmospheric tower a pressure vessel? - HCBBS Forum
21. Calculation of material seal for catalyst feeding pipe - HCBBS Forum
22. Design principles for pressure vessels to prevent low-stress brittle fracture - HCBBS Forum
23. How are stainless steel bolts and nuts used together? - HCBBS Forum
24. Number of times a hydrogen cylinder is allowed to be filled - HCBBS Forum
25. **Order No. 42 of the State Administration for Market Regulation - HCBBS Forum
26. Is heat treatment performed after flange surfacing? - HCBBS Forum
27. What is the tube sheet structure type in SW6? - HCBBS Forum
28. Material selection issue for the medium: isoprene sulfide? - HCBBS Forum
29. cryogenic separation - HCBBS Forum
30. Pressure vessel inspection - HCBBS Forum
31. What are the methods for removing oil from compressed air? - HCBBS Forum
32. Do rolling bearings contribute to improving the performance of enamel-lined reaction kettles? - HCBBS Forum
33. What are the common shapes of containers? - HCBBS Forum
34. Working principle of the compressor thrust bearing and bearing heater - HCBBS Forum
35. I would like to ask everyone: After installing a steam heating coil on the outside of the pressure vessel shell, does this equipment still constitute a pressure vessel? - HCBBS Forum
36. Intermediate tank in the raw water degreasing tank of the sulfur recovery unit - HCBBS Forum
37. Issues related to heavy metal migration tests for food equipment materials - HCBBS Forum
38. What are the standard values for the grounding resistance of pressure vessels in use? - HCBBS Forum
39. Naming rules for seven commonly used types of steel - HCBBS Forum
40. Regarding the layout of the storage tank bottom plate - HCBBS Forum
41. Regarding the explosion limit - HCBBS Forum
42. Can pressure vessel renewal test specimens be painted? - HCBBS Forum
43. Lead the inspection of the cover for the newly manufactured cooler - HCBBS Forum
44. Risk-based inspection of pressure vessels - HCBBS Forum
45. Notice from the General Office of the State Administration for Market Regulation on Consolidating the Results of the Special Rectification Campaign for Liquefied Petroleum Gas Cylinders and Continuously Improving Cylinder Safety Standards - HCBBS Forum
46. What are the requirements for pressure vessel design? - HCBBS Forum
47. Corrosion control in pressure vessel design - HCBBS Forum
48. Introduction to Pressure Vessel Design Codes - HCBBS Forum
49. Some questions regarding the notice form for the installation, modification, and maintenance of special equipment - HCBBS Forum
50. Focus on and promote the internationalization of the pressure vessel design system - HCBBS Forum
51. Regarding the installation of safety valves and the issue of pre-cut valves for safety valves - HCBBS Forum
52. Component calculation software - HCBBS Forum
53. A chilled water coil is installed on the outer wall of the pressure vessel – does this modification fall under the category of pressure vessel modifications? - HCBBS Forum
54. Regarding welders at the Market Regulation Bureau - HCBBS Forum
55. Can the Special Equipment Use Registration Certificate be reissued if the information on it is incorrect? - HCBBS Forum
56. Contents of heat exchanger disassembly and inspection - HCBBS Forum
57. Special equipment - HCBBS Forum
58. What do T.L and W.L mean? - HCBBS Forum
59. Question regarding the installation angle of Z-shaped insulation nails - HCBBS Forum
60. Selection of insulation and cooling devices for solvent storage tanks - HCBBS Forum
61. Metal rust removal grade standards - HCBBS Forum
62. Problems in the structural design of pressure vessels - HCBBS Forum
63. , - HCBBS Forum
64. [Interpretation of the Special Equipment Safety Law] Article 45 - HCBBS Forum
65. Regulations and standard systems for pressure vessels - HCBBS Forum
66. Surface marking on steel plates - HCBBS Forum
67. Dimension control during the actual production of end caps - HCBBS Forum
68. [Interpretation of the Special Equipment Safety Law] Article 6 - HCBBS Forum
69. The influence of welding parameters and processes on welds - HCBBS Forum
70. What is the upper tolerance for the thickness of end caps according to GB/T25198? - HCBBS Forum
71. Why are no elastic gaskets used for the bolts of chemical processing equipment, pipes, and valves? - HCBBS Forum
72. Who has the calculation documents for the condenser of cryogenic containers? - HCBBS Forum
73. Preventive measures for common defects in welding of dissimilar steels in pressure vessels - HCBBS Forum
74. Beginner’s Guide to Chemical Processing Equipment, 13th Edition - HCBBS Forum
75. [Interpretation of the Special Equipment Safety Law] Article 34 - HCBBS Forum
76. Edge stress characteristics and mitigation measures - HCBBS Forum
77. Problems with welded joints in high-pressure vessels? - HCBBS Forum
78. New standard NB/T 47012-2020 - HCBBS Forum
79. Help needed! Under what circumstances can the specified negative deviation for the steel plate in the head of SW6 be set to 0? - HCBBS Forum
80. Shallow sand filter cases in the petrochemical industry - HCBBS Forum
81. Hazard sources of pressure vessels and countermeasures - HCBBS Forum
82. What are the domestic standards for sanitary-grade and food-grade metal materials? - HCBBS Forum
83. Regarding the issue of high ash content in fuel boilers - HCBBS Forum
84. How should this sentence in the standard be understood? - HCBBS Forum
85. Summary of welding requirements for dissimilar steels in pressure vessels - HCBBS Forum
86. Process control in pressure vessel manufacturing - HCBBS Forum
87. Stress corrosion of stainless steel - HCBBS Forum
88. When to use single-layer, multi-layer, and multi-layer multi-pass welding? - HCBBS Forum
89. The fillet weld at the mounting connection of the level gauge is not fully welded - HCBBS Forum
90. Sampling and analysis of phenolic medium, high viscosity and high freezing point fluid (sampling valve and sampler) - HCBBS Forum
91. Summary of Technical Requirements for Pressure Vessels (43) - HCBBS Forum
92. Request a list of the latest laws, regulations, standards, and codes for pressure vessel design - HCBBS Forum
93. Seeking help regarding Japanese standard flanges - HCBBS Forum
94. What is the purpose of the flared shape at the outlet of a steel chimney? - HCBBS Forum
95. Seeking advice on the design of micro internal pressure storage tanks - HCBBS Forum
96. With so many seamless steel pipes, how should one choose? - HCBBS Forum
97. Special equipment - HCBBS Forum
98. Angle between the coordinate systems of the nozzle and the cylinder in the local stress calculation of SW6 - HCBBS Forum
99. Discussion on weld evaluation of dissimilar thickness weldments - HCBBS Forum
100. Calculation area for steam-water heat exchanger - HCBBS Forum