English — Forum #723 (Page 66/642)

1. What do these labels mean? - HCBBS Forum
2. Are there any standards or specifications that require valves to have markings indicating their open and closed states? - HCBBS Forum
3. Regarding nitrogen purity - HCBBS Forum
4. G R Z NPT PT M Threads Differences - HCBBS Forum
5. Selection criteria for RX and BX type octagonal sealing ring gaskets - HCBBS Forum
6. 【12-5】One Question per Day for Occupational Health - HCBBS Forum
7. Which section should I use to place ads on Haichuan now? - HCBBS Forum
8. Losses of nearly 10 billion yuan in 10 months! Domestic nitrogen fertilizer manufacturers are facing a life-or-death test - HCBBS Forum
9. Design parameters of dry quenching coke ovens - HCBBS Forum
10. What should be done with the transformed spent catalyst? - HCBBS Forum
11. Shocking! Enterprises starting with the character “Zhong” cause severe pollution; nearby villages live in fear - HCBBS Forum
12. Does burning occur when activated carbon is regenerated using hot air? ! - HCBBS Forum
13. All indicators are normal, but iron levels are above the normal range - HCBBS Forum
14. HG/T20592 WN Flange Atlas - HCBBS Forum
15. The Bucks are strong this year; can they make it to the Eastern Conference Finals? - HCBBS Forum
16. The water solubility of pure methanol is not up to standard! - HCBBS Forum
17. Question about the curing furnace. - HCBBS Forum
18. The floating head cover should undergo post-weld heat treatment - HCBBS Forum
19. What are the key points for maintaining mechanical equipment? Please share your experiences - HCBBS Forum
20. Air separation Cold dryer - HCBBS Forum
21. Where in Shandong are there electric heat tracing pipeline installation projects? - HCBBS Forum
22. Vertical single-pass reboiler tube outlet - HCBBS Forum
23. 【Daily Question】Principles of Chemical Engineering 472: Ion Exchange (December 5) - HCBBS Forum
24. Be the strongest security professional - HCBBS Forum
25. Diesel hydrocracking fractionator - HCBBS Forum
26. Which one should be used as the standard: the exhaust gas temperature at the chimney inlet or the online measured exhaust gas temperature? - HCBBS Forum
27. Acceptance of fiberglass pipe fittings - HCBBS Forum
28. Calculation of static load on concrete floors - HCBBS Forum
29. Has anyone used molecular sieves to adsorb CCl4? ! - HCBBS Forum
30. Have you ever felt like you chose the wrong career and wanted to change fields? - HCBBS Forum
31. I am working on a course project related to the cold drum section of a coking plant; I need an assembly diagram of the horizontal tube primary cooler - HCBBS Forum
32. Explain the meaning of the cylinder wall temperature ts and the heat exchange tube wall temperature tt in shell-and-tube heat exchangers, as well as their functions - HCBBS Forum
33. With caustic soda prices at high levels, how much longer can this situation persist? - HCBBS Forum
34. Be prepared for potential dangers, so as to avoid troubles - HCBBS Forum
35. Plan for the first start-up of solvent deasphalting - HCBBS Forum
36. Daily Water Treatment Question (12.5) - HCBBS Forum
37. I would like to ask the experts: is it feasible to use the alkaline wastewater from the liquefied gas washing tank in the catalytic double-dehydration unit to treat the sulfur-containing wastewater in the tower top tank? - HCBBS Forum
38. Design calculation for pipeline temperature and pressure reduction devices - HCBBS Forum
39. φ1200 tower CAD drawings - HCBBS Forum
40. Material requirements for large capacity specifications - HCBBS Forum
41. Regarding the issue of a damaged pH meter - HCBBS Forum
42. Can needle valves be used to control pressure? - HCBBS Forum
43. Seek guidance from experts in instrumentation - HCBBS Forum
44. The issue of steam mass affecting steam jet vacuum pumps - HCBBS Forum
45. Discussion on the pumping capacity of steam jet pumps - HCBBS Forum
46. PC solution containing 20% ammonia - HCBBS Forum
47. Silicone synthesis - HCBBS Forum
48. Zener gate and isolation gate - HCBBS Forum
49. Regarding the responsibilities of engineers - HCBBS Forum
50. 【Corporate Safety Initiative】Maoming Petrochemical carries out pre-task safety announcements - HCBBS Forum
51. Recycling of salt sludge in the chlor-alkali industry - HCBBS Forum
52. What is the general maximum temperature allowed for the oil tank in a reciprocating compressor oil station, and what happens if it exceeds this limit? - HCBBS Forum
53. Bro, today it’s the second time he’s smashed 100 gold eggs – he won a participation value 61 times, so that’s at least 610~ - HCBBS Forum
54. jacket tube - HCBBS Forum
55. Graphite in the coke oven carbonization chamber - HCBBS Forum
56. 【12-1】Daily Occupational Health Quiz - HCBBS Forum
57. Gasification Daily Question: 12/4/2016 – Process analysis question (5 points for participation, 10 points for a correct answer) - HCBBS Forum
58. Those who want to improve their spoken English, come and let’s discuss together - HCBBS Forum
59. Can’t PTFE gaskets be used with WN flanges? - HCBBS Forum
60. Model of foam breaker mesh for sulfur recovery capturer - HCBBS Forum
61. Land use control indicators for oil and gas engineering projects - HCBBS Forum
62. 【Daily Question】Chemical Engineering Principles 477: Boiler Water pH (December 3) - HCBBS Forum
63. Videos of safety accidents in chemical enterprises - HCBBS Forum
64. Changing the direction of the vapor and liquid phases in the stripping tower - HCBBS Forum
65. Calculation method for DCS system I/O points - HCBBS Forum
66. How to provide heat tracing and prevent freezing for trenchless underground crossing crude oil pipelines? Master, please give some guidance. Thank you - HCBBS Forum
67. Why is there a large difference between the designed and actual insulation values for the main steam valve of a turbine? - HCBBS Forum
68. Theoretical Mechanics* - HCBBS Forum
69. Daily Fire Safety Question (12.6) - HCBBS Forum
70. The problem of axial force in centrifugal pumps - HCBBS Forum
71. How to deal with power outages - HCBBS Forum
72. 【State-owned Enterprise】Recruitment Notice from Shanghai Environmental Sanitation Engineering Design Institute - HCBBS Forum
73. Unsteady vibration fluctuations of the turbine - HCBBS Forum
74. 【Daily Question】Chemical Engineering Principles 471: Filter Backwashing (November 30) - HCBBS Forum
75. High-efficiency mercury remover - HCBBS Forum
76. 【12-7】One Question per Day for Occupational Health - HCBBS Forum
77. Polyester produced by chemical fiber companies, let’s take a look at that - HCBBS Forum
78. 【12-4】Daily Question for Occupational Health Edition - HCBBS Forum
79. Can a 37KW self-priming pump achieve a flow rate of 180 m3/h and a head of 40 M? - HCBBS Forum
80. Should external pressure cone shell reinforcement rings be installed? - HCBBS Forum
81. Operating Procedures for Producing Lubricant Base Oils via Tail Oil Hydrogenation - HCBBS Forum
82. What basic knowledge is needed for new recruits in pressure-free outdoor operations interviews? - HCBBS Forum
83. How to select a sludge transfer pump - HCBBS Forum
84. Are there any national standards specifying which pipelines need to be electrostatically grounded? - HCBBS Forum
85. rising tube - HCBBS Forum
86. Looking for manufacturers of foam glass bricks for the bottom of LNG storage tanks at normal pressure and low temperatures - HCBBS Forum
87. How much does it cost to invest in a sulfuric acid plant with an annual production capacity of 10,000 tons? - HCBBS Forum
88. Waste heat recovery technology in the ammonia synthesis industry - HCBBS Forum
89. The importance of water pumps as seen in the story of the crow drinking water - HCBBS Forum
90. Hotspot issues in the reactor-recovery system of catalytic cracking units - HCBBS Forum
91. How to make chemical engineering design more automated - HCBBS Forum
92. gb50350-2015 - HCBBS Forum
93. Could the experts here share their ideas and talk about the work tools that work well for them? - HCBBS Forum
94. The single-screw pump does not generate sufficient pressure - HCBBS Forum
95. China Pump Industry Network helps Boshan Pumps achieve sustainable development - HCBBS Forum
96. How are the split points for split-control determined? - HCBBS Forum
97. Acidic water stripping simulation - HCBBS Forum
98. Calculation of the height of the ammonia-based desulfurization absorption zone - HCBBS Forum
99. 【Daily Question】Chemical Engineering Principles 474: Cation Exchangers (December 7) - HCBBS Forum
100. 【12-8】Daily Occupational Health Quiz - HCBBS Forum