English — Forum #92 (Page 68/87)

1. For terminal pipelines in the natural gas industry, what kind of valves are used to regulate flow? - HCBBS Forum
2. Steel flange standards - HCBBS Forum
3. High and low pressure relief valves for direct coal liquefaction - HCBBS Forum
4. Conversion relationship between US standards and Chinese standards for pipe diameter - HCBBS Forum
5. Seeking help regarding the cause of leakage in the short-radius elbows of the ammonia water pipeline in coke ovens - HCBBS Forum
6. Installation of piston-type check valve - HCBBS Forum
7. Bellows-type chlorine-specific valve - HCBBS Forum
8. Little knowledge about pressure relief valves - HCBBS Forum
9. How to achieve remote control of the pipe force valve in fire pump centrifuges - HCBBS Forum
10. Can national standard valves be used in oil and gas fields? - HCBBS Forum
11. The formation and solutions to steam lock - HCBBS Forum
12. Pipeline strength calculation problem - HCBBS Forum
13. What are the structural features of the h44 swing check valve, which is a type of automatic valve? - HCBBS Forum
14. How much does the pipe diameter affect pressure? - HCBBS Forum
15. Flange tightening issues at -60°C - HCBBS Forum
16. Installation of rotameter - HCBBS Forum
17. Selection of bolts and studs for wafer butterfly valves - HCBBS Forum
18. I have a question regarding the one-way valve for the exhaust gas outlet pipe - HCBBS Forum
19. Post #1924800
20. Tetrafluoro PTFE lining, along with flanging, - HCBBS Forum
21. What is the pressure regulation range of a self-acting control valve? - HCBBS Forum
22. Types and selection of pneumatic valve accessories - HCBBS Forum
23. What is the role of sealing in ball valves? - HCBBS Forum
24. Doubts about using pressure regulators on heating pipes - HCBBS Forum
25. Reducer setting issue - HCBBS Forum
26. A coding issue with Neway valves - HCBBS Forum
27. SY/T 5037 & GB/T 3091 - HCBBS Forum
28. Issues regarding the selection and power of circulating water pumps - HCBBS Forum
29. LMF and LFF flange structural length - HCBBS Forum
30. Valves are used on the semi-sleeve - HCBBS Forum
31. Discussion on valve selection - HCBBS Forum
32. I have a question regarding the straightness of horizontal pipes; I’d like to ask everyone for their advice - HCBBS Forum
33. Fluid erosion protection structure for valve seat - HCBBS Forum
34. Bending radius of elbow - HCBBS Forum
35. Standard for Heat-Bent Tubes** - HCBBS Forum
36. Online tightening - HCBBS Forum
37. Regarding steam pipes - HCBBS Forum
38. Are flanges divided into large outer diameter and small outer diameter? - HCBBS Forum
39. Let’s analyze what the cause of this pneumatic ball valve is - HCBBS Forum
40. Which mechanical structure can allow the horizontal tube to rotate freely 30 degrees left and right on a horizontal plane - HCBBS Forum
41. The standard number for C4 steel is - HCBBS Forum
42. Issues to consider for piping - HCBBS Forum
43. Bellows valve - HCBBS Forum
44. Pressure reducing valve for chlorine gas cylinders - HCBBS Forum
45. I have a question: can pressure drop in steam pipes cause a temperature drop? - HCBBS Forum
46. I would appreciate your guidance - HCBBS Forum
47. Rainfall valves are used for fire protection - HCBBS Forum
48. There’s a small component; the flow diagram labels it as a check valve, but the technician said it’s an expansion joint - HCBBS Forum
49. Regarding the issue of safety valve leakage - HCBBS Forum
50. I would like to ask fellow professionals about the issues related to construction management in chemical plant projects - HCBBS Forum
51. On the calculation of the effective volume of underground water tanks - HCBBS Forum
52. How to deal with the accumulation of concentrated nitric acid in the pipes? - HCBBS Forum
53. Discussion on pipeline design pressure - HCBBS Forum
54. Discussion on pressure relief valves - HCBBS Forum
55. GB/T 13401 version 2017 - HCBBS Forum
56. Internal structures of various types of valves - HCBBS Forum
57. Can steam be piped through unrelated workshops? - HCBBS Forum
58. Online assistance for flange selection or design - HCBBS Forum
59. What is the appropriate thickness for copper pipes used for compressed air? - HCBBS Forum
60. Valve size - HCBBS Forum
61. Regarding the thickness of non-metallic flat gaskets for flanges - HCBBS Forum
62. I would like some advice on knowledge related to fixed combustible gas detectors - HCBBS Forum
63. Flow loss problem in the eye digging tee - HCBBS Forum
64. The storage tank is used for methanol - HCBBS Forum
65. The role of the LC oscillation circuit in the valve position switch - HCBBS Forum
66. Electrostatic grounding method for galvanized pipes - HCBBS Forum
67. Pressure relief valve on the nitrogen pipeline - HCBBS Forum
68. Layout of fire pump pool in the boiler room - HCBBS Forum
69. Question: What does “XH” mean in the specifications of American standard flanges? - HCBBS Forum
70. Pipeline trench atlas - HCBBS Forum
71. The jacketed ball valve needs to be reselected - HCBBS Forum
72. Issues regarding the flanges of safety valves - HCBBS Forum
73. Breath loss of ether storage tanks - HCBBS Forum
74. Issues with deviations between valve design parameters and actual operating conditions - HCBBS Forum
75. Detailed explanation of the concepts of \"number of positions\" and \"number of ports\" in pneumatic valves - HCBBS Forum
76. What are the differences between flanges of different grades? - HCBBS Forum
77. Classification of check valves - HCBBS Forum
78. Seek wear-resistant, acid- and alkali-resistant valves for dust removal, desulfurization, and flue gas emission control - HCBBS Forum
79. How much is a DN600 ammonia pipeline in a coking plant per meter? - HCBBS Forum
80. I just want to ask about the inflow and outflow processes of the oil in the valve circuits numbered 1.2 and 6.7 in this diagram, as I can’t understand how their positions change - HCBBS Forum
81. How to save energy — compressed air systems? - HCBBS Forum
82. What is the difference between Steel Forgings and Wrought Fittings? - HCBBS Forum
83. Do spring supports and hangers used on pipelines need to undergo any tests? - HCBBS Forum
84. API598 Valve Low-Pressure Sealing Test - HCBBS Forum
85. Issue with the installation direction of the butterfly valve at the elbow on the water inlet side - HCBBS Forum
86. Selection of steam main valves - HCBBS Forum
87. What is the reason for pipe freezing (with on-site picture attached)? - HCBBS Forum
88. Is the annual inspection of pressure vessels and pressure pipelines mandatory? - HCBBS Forum
89. Selection of Corrosion-Resistant Valves for High-Temperature Environments - HCBBS Forum
90. How are forged steel valves and cast steel valves manufactured? - HCBBS Forum
91. Corrosion-resistant and high-temperature resistant PP pipes - HCBBS Forum
92. What are the **standards** that petroleum refining and chemical engineering technicians need to master? What sequential learning* is required? - HCBBS Forum
93. Seeking help with branch fittings - HCBBS Forum
94. Should warning tapes not be laid in the subgrade and pavement? - HCBBS Forum
95. Seek a design for a cooler - HCBBS Forum
96. Regarding the use of pipe splices as supports - HCBBS Forum
97. What does this breather valve mean? - HCBBS Forum
98. The medium flowing in the pipeline is gas; is it necessary to install a drain at the lowest point of the pipeline? A hydrostatic test is required - HCBBS Forum
99. Do 4MPa hydraulic oil pipelines belong to pressure pipelines? - HCBBS Forum
100. The issue of allowable stress in copper pipes - HCBBS Forum