English — Forum #723 (Page 253/642)

1. When you gaze into the void, the void is also gazing at you - HCBBS Forum
2. Is it required for the manufacturing plant to have the necessary qualifications for producing non-standard (non-conventional) pressure vessels? - HCBBS Forum
3. Pressure drop curve of flanged lift check valve (1\"/300LB) - HCBBS Forum
4. Seeking advice regarding the decrease in wastewater pH caused by the use of stainless steel partitions in the retention tank - HCBBS Forum
5. Leave Application Form from Xiaoyao Tenglong, Technical Team of Instrumentation Area - HCBBS Forum
6. Unstable pressure at the pump outlet of the chlorate decomposition tank - HCBBS Forum
7. Could any expert in valve design please help? - HCBBS Forum
8. What is the difference between a gas-phase absorption tower and a liquid-phase absorption tower? - HCBBS Forum
9. [Note on the Chemical Engineering major] Can those majoring in Materials Chemistry apply for the Chemical Engineering program? - HCBBS Forum
10. 【Daily Question】Chemical Engineering Principles 382: Analysis (May 21) - HCBBS Forum
11. The difference between the damping time of instruments and the filtering time of DCS systems - HCBBS Forum
12. What is the general process of instrument control loops in refineries? - HCBBS Forum
13. Cesium extraction using the solvent extraction method in a centrifugal extractor - HCBBS Forum
14. Why are loose-flange types not included in the ASME/ANSI B16.47 standard? - HCBBS Forum
15. [Fable] The Little Cat Fishing - HCBBS Forum
16. Those with an intermediate engineer certificate or a degree in mechanical equipment are welcome to take a look - HCBBS Forum
17. Excessive chloride ions in light oil - HCBBS Forum
18. Cable selection - HCBBS Forum
19. 【Weekly Topic】【Storage & Transportation Version 201605019】 - HCBBS Forum
20. 【Daily Question No. 143】May 17, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
21. Can the effluent from the filter press used in the treatment of dyeing and printing wastewater with reduced alkalinity be mixed with the effluent from air flotation? - HCBBS Forum
22. Is DMDS injected continuously in practical use? - HCBBS Forum
23. 【Daily Question No. 144】May 18, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
24. Nanjing Xiangyue Industrial Equipment Co., Ltd. – supplier of Asahi organic material valves and ball valves - HCBBS Forum
25. On the effect of steam pipeline elbows on the conveying pressure - HCBBS Forum
26. Urgently need CAD drawings of shielded pumps - HCBBS Forum
27. The ORP of the reverse osmosis feed water cannot be increased no matter what. The normal value is around 200; here it’s only seventy - HCBBS Forum
28. Seeking expert advice on Shell separator design specifications - HCBBS Forum
29. 【Weekly Topic】【Quality Version 20160520】 - HCBBS Forum
30. Children’s Day is coming up soon – how about a gathering of cute kids? - HCBBS Forum
31. Sign-in record post from May 20, 2016 - HCBBS Forum
32. Selection of heat pump compressors for distillation - HCBBS Forum
33. Issues with explosion-proof hoses - HCBBS Forum
34. Intermediate material input issue - HCBBS Forum
35. MTP device renovation - HCBBS Forum
36. Will the safety engineer exam still be held this year? - HCBBS Forum
37. 【Daily Topic】【Civil Engineering Version 20160520】 - HCBBS Forum
38. What does DCS redundancy point mean? - HCBBS Forum
39. In the ammonia-based desulfurization process, the sulfuric acid an crystals are small in size; they gradually turn into a milky paste-like substance, making it impossible to separate them by centrifugation - HCBBS Forum
40. I’m stuck – what should be the selected flow measurement range for an LNG storage tank with a capacity of 50 cubic meters? It would be great if someone could provide me with the calculation formula - HCBBS Forum
41. The vacuum tower is evacuated using a primary steam ejector, with a water ring pump as the secondary device. Question: - HCBBS Forum
42. 【Weekly Topic】【Home Version 20160518】 - HCBBS Forum
43. What are the requirements for isothermal dehydrogenation when shutting down the reactors in various hydrogenation units? - HCBBS Forum
44. When you gaze into the void, the void is also gazing at you - HCBBS Forum
45. ANSYS stress analysis - HCBBS Forum
46. ESPN is a total scam! They say that the teams with the best chances of winning have mostly been eliminated; the Spurs are a typical example - HCBBS Forum
47. Can SY/T5037-2012 be used with moderately hazardous media? - HCBBS Forum
48. 【Purification Daily Question】May 19, 2016 - HCBBS Forum
49. Problems with liquid-rich absorption - HCBBS Forum
50. Environmental Protection Tip of the Day – May 26: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
51. Ten common work mistakes of safety officers - HCBBS Forum
52. Who has the Chinese version of API681? - HCBBS Forum
53. Seek CAD drawings for reaction vessels - HCBBS Forum
54. Environmental Protection Daily Tip 5.25: Reward for participation + 3 more rewards for answering correctly - HCBBS Forum
55. Do explosion-proof (EX) electrical devices also have dust and water protection (IP) ratings? - HCBBS Forum
56. Regarding buying a new house in Shanghai and its renovation - HCBBS Forum
57. Find compressor and water pump flow rate - HCBBS Forum
58. 【Daily Topic】【Electrical Edition 20160518】 - HCBBS Forum
59. 【Daily Judgment NO.21】May 29, 2016 - HCBBS Forum
60. One question per day on occupational health – May 25: Participate for a prize; 3 correct answers and you’ll get another prize - HCBBS Forum
61. Sulfur Daily Question, May 19------3 points for participation, 10 points for a correct answer - HCBBS Forum
62. Thoughts - HCBBS Forum
63. Those familiar with aromatic extraction are welcome to offer guidance - HCBBS Forum
64. What causes the decrease in the suction and discharge volumes of a reciprocating compressor? - HCBBS Forum
65. For a liquid flow rate of DN25 and 60L/H, which flow meter is more accurate? - HCBBS Forum
66. Disulfides and alkali solutions - HCBBS Forum
67. Sealed sewage discharge for the storage tank or a sump to be installed? - HCBBS Forum
68. Why does Yuntianhua monoammonium turn yellow? - HCBBS Forum
69. Can 304 pipes be used for copper sulfate solutions? - HCBBS Forum
70. Seeking help with lithium bromide refrigerators - HCBBS Forum
71. How are the flange dimensions for DN350 PN420 determined? - HCBBS Forum
72. The shell side is saturated steam, falling within the constant-volume regime. The tube temperature is 60° warm water, and it falls outside the range of the fixed capacity regulations. Is there no non-destructive testing? - HCBBS Forum
73. What material should be used for car antifreeze? - HCBBS Forum
74. visimix laminar laminar flow mixing software - HCBBS Forum
75. How much do you know about the operating conditions of all-aluminum heat exchangers? - HCBBS Forum
76. Reaction flow rate calculation - HCBBS Forum
77. Safety colors for process pipelines and storage tanks - HCBBS Forum
78. Where is the expert? Reformation catalyst enhancement - HCBBS Forum
79. Will the steel plate deform? - HCBBS Forum
80. Questions about lift-type check valves - HCBBS Forum
81. I would like to ask everyone how to calculate the venting time for storage tanks - HCBBS Forum
82. 【Daily Topic】【Civil Engineering Version 20160526】 - HCBBS Forum
83. Looking for CAD PIPING SYSTEM plugin - HCBBS Forum
84. How to prepare a 2% sodium sulfide solution? - HCBBS Forum
85. Hydrogen explosion in sulfuric acid pipeline causes pipeline rupture - HCBBS Forum
86. 【Daily Topic】【Civil Engineering Version 20160524】 - HCBBS Forum
87. What are some good devices for volume measurement? - HCBBS Forum
88. Manufacturers producing catalysts via pressure spray drying sought - HCBBS Forum
89. 【Q&A Question 037】2016.05.27 - HCBBS Forum
90. 【Purification Daily Question】May 20, 2016 - HCBBS Forum
91. Copper water jacket manufacturing - HCBBS Forum
92. Length of the catalyst cracking centrifugal discharge pipe - HCBBS Forum
93. PID setpoint, - HCBBS Forum
94. Operation status of loose air for FCC external heat exchanger - HCBBS Forum
95. If there is welding between the support/hanger and the pipe, must the welding type necessarily be a fillet weld? Are there any other types of welding? - HCBBS Forum
96. How to write a paper on equipment? ? ? - HCBBS Forum
97. Technical requirements for composite panel containers - HCBBS Forum
98. Summary of the progress of key domestic coal-to-natural gas projects - HCBBS Forum
99. Advantages of non-negative pressure water supply equipment - HCBBS Forum
100. What is the density of water vapor under standard conditions? - HCBBS Forum