English — Forum #276 (Page 15/145)

1. When should thread milling be used instead of tap machining to create threads? - HCBBS Forum
2. The manufacturing of oversized equipment for the Yulin Kaiyue project is entering its final stage - HCBBS Forum
3. Basic knowledge of compressor surge - HCBBS Forum
4. Container drying and purging process - HCBBS Forum
5. What are the methods for non-destructive testing of welds? What’s the difference? - HCBBS Forum
6. Aluminum alloy grades and their application ranges - HCBBS Forum
7. What is the difference between intergranular cracking, transgranular cracking, and intercrystalline cracking? - HCBBS Forum
8. Q&A on Pressure Vessels – Materials - HCBBS Forum
9. High-hazard medium manhole flange type - HCBBS Forum
10. Foam weir plate for external floating roof tanks - HCBBS Forum
11. Are there any requirements from the design agency when designing pressure vessels using ASME standards? - HCBBS Forum
12. Principles and requirements for installing valves - HCBBS Forum
13. 13 key points for preventing welding deformation - HCBBS Forum
14. Causes of cavitation and gas entrapment in centrifugal pumps, treatment methods, and safety operating procedures - HCBBS Forum
15. Hydraulic pressure test for heat exchanger tube bundle maintenance - HCBBS Forum
16. Differences and functions between flat washers and spring washers - HCBBS Forum
17. Determination of the 100% radiographic inspection thickness for dissimilar thickness butt weld joints - HCBBS Forum
18. What should be noted when installing a safety valve and a burst disc together? - HCBBS Forum
19. Is this defect caused by corrosion or by the raw material itself? - HCBBS Forum
20. Is there >SCH80 stainless steel pipe in the Ia series of HG20553? - HCBBS Forum
21. Does a short circuit between a pressure vessel and a safety valve fall under pressure pipelines? - HCBBS Forum
22. Regarding [single-chamber] and [multi-chamber] containers - HCBBS Forum
23. Fire safety regulations - HCBBS Forum
24. Pressure vessels are designed in accordance with ASME; what are the special requirements for pressure testing them? - HCBBS Forum
25. System for Reporting and Handling Accidents Involving Special Equipment - HCBBS Forum
26. Main manufacturing processes for pressure vessels - HCBBS Forum
27. How to distinguish steel grades - HCBBS Forum
28. Under what circumstances is the butt weld joint type of Class A used for openings in the pressure vessel shell? - HCBBS Forum
29. Cracks were found after welding alloy20 seamless tubes - HCBBS Forum
30. For dissimilar steel connection flanges, is it necessary to adjust the thickness at the small end of the flange cone neck (g0) based on the difference in the allowable stress of the materials? - HCBBS Forum
31. Welding defects - HCBBS Forum
32. Surface treatment: What is Dacromet? Differences between galvanizing and chromating. - HCBBS Forum
33. Management Analysis and Planning for Major Chemical Plant Overhauls - HCBBS Forum
34. Calculation of steam flow rate during steam injection process - HCBBS Forum
35. Does this type of electric hoist count as a special equipment? - HCBBS Forum
36. I would like to ask: some clients require that the cylinder body of pressure vessels be made of 304 or 304L material, while the head should be made of 316L material - HCBBS Forum
37. Why must the cooling water pressure not be higher than the hydrogen pressure, and why must the water temperature be higher than the hydrogen temperature? - HCBBS Forum
38. The application value of Static Transfer Switches (STS) in energy storage projects - HCBBS Forum
39. Basic knowledge points about circulating water - HCBBS Forum
40. What is the difference between PLS1 and PLS2 on 9711? - HCBBS Forum
41. Regarding the calibration of ferrite detectors - HCBBS Forum
42. How does a temperature and pressure reduction device reduce temperature and pressure? - HCBBS Forum
43. How to calculate a soda heat exchanger with phase change - HCBBS Forum
44. The common difference between “interlock” and “chain” - HCBBS Forum
45. Is 100% testing required for the welds of heads that are first joined together by panels and then formed, according to GB/T150.4? The General Administration replied in this way. - HCBBS Forum
46. High-temperature pipeline problems! - HCBBS Forum
47. In the safety risk assessment of old equipment, what is the definition of \"the number of times pressure vessels have been assessed for suitability for use\"? How to fill it out? - HCBBS Forum
48. Are the minimum required thickness and effective thickness the same concept? - HCBBS Forum
49. Calculation range of the load on the pipe port at the center of the head - HCBBS Forum
50. The concept of hydrogen embrittlement and preventive measures - HCBBS Forum
51. In the design of large storage tanks, why shouldn’t the nozzles interfere with the welds on the tank walls? - HCBBS Forum
52. If the equipment’s flat cover is a convex-flange cover connected to a concave-flange, does the calculated thickness of the flat cover include the sealing surface? - HCBBS Forum
53. Five common problems in welding thick plates in steel structures and their solutions - HCBBS Forum
54. Top 10 News Stories in Petroleum and Chemical Equipment in 2024 - HCBBS Forum
55. Thought process for fault detection and diagnosis in DCS - HCBBS Forum
56. How to select a static transfer switch? - HCBBS Forum
57. What is the “handover” in chemical engineering projects? What are CCCC’s standards? - HCBBS Forum
58. Electric heating for pressure vessels: Key technologies for energy saving and temperature control - HCBBS Forum
59. 【Question】Is it okay to install a steam trap in this situation? - HCBBS Forum
60. National Chemical Equipment Design Technology Center Station “Tower-Type Vessels” Courseware - HCBBS Forum
61. The principle of linear motors - HCBBS Forum
62. Insulation for storage tank foundations - HCBBS Forum
63. What type of oil and gas separator performs best? - HCBBS Forum
64. Principles for determining design pressure and design service life - HCBBS Forum
65. Safety Commitment Letter of Special Equipment Users - HCBBS Forum
66. Quenching method - HCBBS Forum
67. Selection of design pressure for jacketed vessels and relevant considerations according to GB/T 150.1 4.3.3 - HCBBS Forum
68. Denier to millimeter conversion - HCBBS Forum
69. Regarding the new standard for end caps GB/T25198-2023, the issue of test plates for end caps - HCBBS Forum
70. Are safety valves, rupture disks, emergency shut-off valves, and gas cylinder valves subject to manufacturing inspection? - HCBBS Forum
71. What do F and G refer to in the certification requirements for welders of special equipment? Are they the initial letters of words in English? - HCBBS Forum
72. How to calculate the heat treatment holding time - HCBBS Forum
73. Structural analysis of internal floating roof storage tanks and safety measures to prevent trays from falling to the bottom - HCBBS Forum
74. Installation of flame arresters in chemical plants - HCBBS Forum
75. Application of GSS Static Transfer Switches (STS) in power plants for protecting against voltage fluctuations - HCBBS Forum
76. How to choose a reference system - HCBBS Forum
77. Can a spherical head be used for high-pressure storage tanks, with a spherical segment head and a truncated cylinder body? - HCBBS Forum
78. Doubts regarding certain provisions of GB/T150-2024 - HCBBS Forum
79. Just saw Grandpa Tao’s sixth edition of Heat Transfer! - HCBBS Forum
80. Flame arrester technology - HCBBS Forum
81. Issue of non-standard flange thickness at the inlet and outlet of expansion joints - HCBBS Forum
82. water hammer effect - HCBBS Forum
83. Technical requirements for expansion joint plates - HCBBS Forum
84. The welding process approved for the base material of group Fe-1-2 is applicable to the base material of group Fe-1-1 - HCBBS Forum
85. Aluminum alloy material - HCBBS Forum
86. Expansion joint thickness issue - HCBBS Forum
87. The application of ultrasonic testing technology in non-destructive testing - HCBBS Forum
88. Post-weld heat treatment - HCBBS Forum
89. Design and verification calculations for shell-and-tube heat exchangers - HCBBS Forum
90. On the calculation of ear-type supports - HCBBS Forum
91. General heat treatment methods for steel materials - HCBBS Forum
92. Inspections, tests, and precautions before valve installation - HCBBS Forum
93. 【Haichuan Equipment Guessing Game】What a large U-shaped door lock - HCBBS Forum
94. Valve bolt performance grade - HCBBS Forum
95. Frost has arrived; dear sea friends, please keep warm. - HCBBS Forum
96. Installation of foundation bolts for chemical processing equipment - HCBBS Forum
97. 3 steps to determine whether re-calibration is needed after the safety valve operates! - HCBBS Forum
98. How are large dome tanks calculated? Are there any relevant calculation programs? - HCBBS Forum
99. Seeking advice on labor protection issues related to welding on pressure vessel bodies - HCBBS Forum
100. Systems for identifying and addressing potential hazards in special equipment, as well as for maintenance and regular self-inspections - HCBBS Forum