English — Forum #723 (Page 572/642)

1. The upper flange of the butterfly valve has the same size as the overall structural length of the valve – does this affect the structural strength of the butterfly valve? - HCBBS Forum
2. How to solve the high noise problem of Roots blowers - HCBBS Forum
3. The flow rate of the electromagnetic flowmeter suddenly dropped to zero - HCBBS Forum
4. Can sulfates be removed by chemical precipitation? - HCBBS Forum
5. Party A arbitrarily made holes in the container - HCBBS Forum
6. Ozone pollution in Shanghai persists for 11 consecutive days; wearing masks does not help prevent it - HCBBS Forum
7. Fire safety inspection - HCBBS Forum
8. 30m3 polymerization reactor – is there any use of equal-temperature material feeding in this industry? - HCBBS Forum
9. Precautions for ammonia tank design! - HCBBS Forum
10. Problems with the catalytic main fan unit - HCBBS Forum
11. 【Daily Question】Question from Issue 20150729 - HCBBS Forum
12. 【Daily Question】Chemical Engineering Principles 130: Absorption Rate (August 4) - HCBBS Forum
13. Environmental impact assessment for large-scale coal chemical industries - HCBBS Forum
14. Centrifuge and reciprocator in parallel - HCBBS Forum
15. Leak in the overhead oil and gas cooler of the catalytic fractionator - HCBBS Forum
16. Questions regarding the total volume of tank groups and the spacing between individual tanks in petrochemical regulations - HCBBS Forum
17. Municipal waste incineration - HCBBS Forum
18. Incident Handling 3: Analyze the causes of blockage in the coal drop pipe of the feed pulverizer in a circulating fluidized bed boiler - HCBBS Forum
19. Double-flange level gauge - HCBBS Forum
20. Transferred from WeChat – The three things that waste the most time in life - HCBBS Forum
21. Newbie seeking help - HCBBS Forum
22. How to determine the nominal thickness of high-voltage equipment - HCBBS Forum
23. An automatic water cut-off system must be installed in the tank area - HCBBS Forum
24. Playing is an essential part of a child’s growth process - HCBBS Forum
25. Please tell me what to do (regarding the faulty pressure gauge) - HCBBS Forum
26. 【Daily Question】August 7 – Judgment regarding increased motor temperature (+2 for the first 80 participants, +3 to +8 for correct answers)…… - HCBBS Forum
27. Discussion on knowledge issues related to shielded pumps in WeChat - HCBBS Forum
28. Is the reduction of nitro groups by hydrazine hydrate considered a hazardous chemical process? - HCBBS Forum
29. A few questions about compressors - HCBBS Forum
30. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 131 - HCBBS Forum
31. Your cast steel globe valves are the most expensive; I’ll still buy them from you - HCBBS Forum
32. Examples of disposal plans for spent catalysts - HCBBS Forum
33. Weekly topic: 5 Wealth points for correct answers, 2 Wealth points for participation； Question 132 - HCBBS Forum
34. Regarding the pump head - HCBBS Forum
35. Inquire about speaker prices - HCBBS Forum
36. Flange selection - HCBBS Forum
37. How should I understand the statement that \"after self-protection is activated, it should be immediately switched to local control, and then the self-protection switch should be reset\"? - HCBBS Forum
38. Selection of anaerobic reactor, floculent sludge - HCBBS Forum
39. Wish myself a happy birthday - HCBBS Forum
40. Can YT flexible die filtration truly address some of the drawbacks of bag filters? - HCBBS Forum
41. The on-site display and the central control display of the pressure transmitter show values that are 10 times lower than those of the pressure gauge. - HCBBS Forum
42. What to do if the company tries to keep you when you decide to resign - HCBBS Forum
43. Who has the VMGsim translation software? - HCBBS Forum
44. Domestic electrodialysis membrane manufacturers in China - HCBBS Forum
45. 【Daily Question】Question from Issue 20150806 - HCBBS Forum
46. Weekly topic: 8 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 123 - HCBBS Forum
47. Requirements for selecting volume conversion constants - HCBBS Forum
48. What analyzer is used to measure halogens? - HCBBS Forum
49. DuPont perfluoroether rubber information - HCBBS Forum
50. Supply of industrial salt in India - HCBBS Forum
51. Flammable gas detection alarm - HCBBS Forum
52. Incident Handling 1: What types of failures have occurred with the coal feeding fans of the circulating fluidized bed boilers in your plant? - HCBBS Forum
53. Determination of the gas exhaust flow rate from the container - HCBBS Forum
54. Can the thickness of an acrylic tube be calculated using the mean diameter formula? - HCBBS Forum
55. Optimization directions for the dry acetylene calcium carbide crushing process... - HCBBS Forum
56. Is the technical team not giving out bonuses anymore? - HCBBS Forum
57. 【Weekly Topic】-15.7.30- What causes you to argue with others? - HCBBS Forum
58. Questions about nutrition - HCBBS Forum
59. Looking for P&ID tutorials - HCBBS Forum
60. What should be the appropriate outlet pressure of the boiler feed pump in a hydrogen production plant? - HCBBS Forum
61. Regulations on the Start-up and Shutdown Management of Refining and Chemical Processing Plant Units - HCBBS Forum
62. It’s really hard to find jobs as instrumentation engineers! - HCBBS Forum
63. Should one get a buzz cut in the summer at a real **company? - HCBBS Forum
64. Burner cooling water failure trip interlock - HCBBS Forum
65. Foundation bolt sw6 input - HCBBS Forum
66. Safety protection issues for combustible medium pipelines laid parallel to railways - HCBBS Forum
67. Is it necessary to cut off the power when the equipment is not in use for a long time? - HCBBS Forum
68. Issues regarding applicants and certificate issuance for personnel from companies without design qualifications - HCBBS Forum
69. Welding issues after heat treatment - HCBBS Forum
70. Discuss the composition of the project team for new construction and expansion projects of various owner entities - HCBBS Forum
71. Heating furnace damper - HCBBS Forum
72. Who knows which units in China have good technology for repairing the babbitt layer of bearing shells? - HCBBS Forum
73. Meters with on-site alarm function - HCBBS Forum
74. The role of equipment manager is quite leisurely - HCBBS Forum
75. Whose jasper is crushed for primary crushing? - HCBBS Forum
76. Could everyone tell me what operating conditions require electrostatic monitoring? - HCBBS Forum
77. Rossmount 5402 radar level gauge error code fault - HCBBS Forum
78. Is a washer required when connecting flanges with bolts and nuts? - HCBBS Forum
79. Selection Activity for Outstanding Original Technical Themes in July 2015 (Recommendation Phase) - HCBBS Forum
80. Help needed: Alarm values for the main parameters of UOP reforming! - HCBBS Forum
81. Regarding the issue of borrowing materials from entities without sales qualifications - HCBBS Forum
82. The return oil pipeline of the heat transfer oil furnace is DN200 – is it necessary to change its diameter before it enters the pump? - HCBBS Forum
83. Are all Class B liquids non-explosion-proof? - HCBBS Forum
84. Response from the manufacturer’s electrical staff. Everyone, please help analyze whether it is correct - HCBBS Forum
85. Rosemount radar level gauge issues - HCBBS Forum
86. Materials for producing heat packs - HCBBS Forum
87. Chemical Engineering and Technology: Over 6.5 years of experience in polysilicon production - HCBBS Forum
88. How did the medal disappear? - HCBBS Forum
89. Vibration problems in single-stage centrifugal pumps - HCBBS Forum
90. Regarding steam sealing issues in steam compressors - HCBBS Forum
91. How are nozzles at different positions at the same height of the cylinder drawn in the assembly diagram? - HCBBS Forum
92. Regarding the installation of indoor fire hydrants as specified in Paragraph 1 of Article 8.2.1 of the Code for Fire Protection Design of Buildings - HCBBS Forum
93. Effect of burner pressure difference on atomization - HCBBS Forum
94. Difference between circulation machines and new hydrogen generators - HCBBS Forum
95. Does anyone here have DEP 80.47.10.30 – «Fire Safety Assessment of Surface Installations»? - HCBBS Forum
96. Looking for good pipeline polishing manufacturers in China - HCBBS Forum
97. Security management agency - HCBBS Forum
98. Selection of temperature sensing elements for corrosive environments - HCBBS Forum
99. It is recommended that the Haichuan mobile app add a night mode feature - HCBBS Forum
100. Does any member have a research report on the domestic single-stage double-suction pump market and related manufacturers? I’d like to take a look at it. Thank you. - HCBBS Forum