English — Forum #92 (Page 63/87)

1. What are the current requirements regarding the lifespan and inspection cycle of metal hoses? - HCBBS Forum
2. The centrifugal pump return line is used for stirring purposes - HCBBS Forum
3. Inspection grades and methods for pressure pipeline welds - HCBBS Forum
4. Are steam pipes considered pressure pipes? - HCBBS Forum
5. The meaning of the square markings on the pipes in PID - HCBBS Forum
6. Knowing the flow rate in the main pipeline as well as the pressure and flow rate in the branch pipelines is important; it determines whether the piping selection is reasonable or not - HCBBS Forum
7. Has anyone here used CEAG junction boxes? - HCBBS Forum
8. I would like to ask: for gate valves using liquid ammonia as the medium, is it acceptable to use STL for the sealing surface? - HCBBS Forum
9. Connection methods for process pipelines - HCBBS Forum
10. I would like to ask the experts: why is a gate valve installed downstream of the control valve? - HCBBS Forum
11. Safety valve bypass pipe diameter - HCBBS Forum
12. Fitting technical standards and material standards - HCBBS Forum
13. I would like to ask the experts: which factories in China are capable of producing standard AWWA C504 butterfly valves? - HCBBS Forum
14. Is it necessary to regularly calibrate the safety valve on the fire pump connection? - HCBBS Forum
15. Everyone, take a look at this piping issue - HCBBS Forum
16. Issues in selecting winding gaskets - HCBBS Forum
17. Why doesn’t our factory like to use DN32? Do they not like this number? - HCBBS Forum
18. SolidWorks for 3D piping – can it be useful? - HCBBS Forum
19. Welded sliding pipe support - HCBBS Forum
20. Under what circumstances does a control valve need to be equipped with a solenoid valve? - HCBBS Forum
21. What kind of equipment are flanges and elbows in the chemical industry? - HCBBS Forum
22. Which is better for butterfly valves: multi-layer sealing rings on the valve seat or on the disc? - HCBBS Forum
23. Check valve installation location - HCBBS Forum
24. Elbow type - HCBBS Forum
25. Are safety valves installed both before and after the safety valve of the gas pressure regulating equipment? Is this in compliance with the **standards**? It seems nothing was found? ? - HCBBS Forum
26. Are lens pads and metal ring pads the same thing? - HCBBS Forum
27. DN65 flange - HCBBS Forum
28. A cushion with a thickness of 150 as well - HCBBS Forum
29. Constant-temperature steam trap - HCBBS Forum
30. High-pressure airless nozzle - HCBBS Forum
31. What is the nominal diameter for pipe supports using pipe clamps? - HCBBS Forum
32. Seek CAD sample drawings of various valves - HCBBS Forum
33. How should pressure pipes with casings be inspected? ? ? - HCBBS Forum
34. Does this flange still lack data? - HCBBS Forum
35. Selection of liquid sulfur tank pumps - HCBBS Forum
36. May I ask how to calculate the fluid flow direction in the pipeline network, the pipeline network resistance, and the pressure distribution? - HCBBS Forum
37. Manufacturing standards for stainless steel internal thread impeller flow indicators - HCBBS Forum
38. About flanges - HCBBS Forum
39. Does anyone know what a magnetic weight valve is? - HCBBS Forum
40. Steam tracing issue - HCBBS Forum
41. Imported low-temperature valves - HCBBS Forum
42. Is there any that is designed this way? Which expert has the guidelines? - HCBBS Forum
43. Could anyone who knows about this tell me what material it is and where it can be purchased? - HCBBS Forum
44. Minimum height requirement for pipeline valves above the ground - HCBBS Forum
45. The difference between gate valves and stop valves in engineering applications - HCBBS Forum
46. Why are reinforcing plates avoided in support pipe racks? - HCBBS Forum
47. Pneumatic cut-off valve opening time - HCBBS Forum
48. High-pressure hydrogen pipeline - HCBBS Forum
49. Differences between Series A and Series B of flange gaskets with a diameter greater than 600 mm in HG/T20631 - HCBBS Forum
50. Reasons for valve vibration - HCBBS Forum
51. Is there any that is designed this way? Are there any standards for this type of design? - HCBBS Forum
52. Could everyone help figure out why this tee has cracks? Another 80-three-way connector had the same problem yesterday! - HCBBS Forum
53. Pipe leakage issues cannot be ignored - HCBBS Forum
54. Does this single-line diagram material list include valves and flanges? I can’t understand it - HCBBS Forum
55. Regarding the selection of check valves - HCBBS Forum
56. Valve model 510D, valve port diameter 3”x2” - HCBBS Forum
57. Regarding the definition of pressure pipelines - HCBBS Forum
58. I would like to ask everyone: do you apply grease to the valve stem during its use? - HCBBS Forum
59. Problems with valve pressure testing - HCBBS Forum
60. Questions about HG/T20592-2009 chemical flanges? - HCBBS Forum
61. What are the common media used for valve pressure testing? The pressure testing methods for industrial valves, including pneumatic valves, are as follows - HCBBS Forum
62. Selection of pipeline materials for dibromoethane and bromide salts (jacket insulation required) - HCBBS Forum
63. Issues related to low-temperature materials in the draft of GB20801.2 - HCBBS Forum
64. Corrosion of valve flange bolts - HCBBS Forum
65. HG 20592 - HCBBS Forum
66. How to draw a CAD single-line diagram - HCBBS Forum
67. Which standard can be used to find the high-temperature mechanical properties of pipes? - HCBBS Forum
68. The valve on this pipe seems to serve no purpose in terms of installation, right? - HCBBS Forum
69. Meaning of valve letters - HCBBS Forum
70. I’d like to recommend a video on valve science* - HCBBS Forum
71. Appearance, working principle, and usage of the oxygen pressure regulator - HCBBS Forum
72. How can the pressure inside the pipe be reduced while increasing the gas flow rate within it? - HCBBS Forum
73. Stainless steel wound gasket - HCBBS Forum
74. What is this control valve? - HCBBS Forum
75. Can a check valve be installed vertically? - HCBBS Forum
76. Common Misconceptions about Drainage Issues in Steam Systems - HCBBS Forum
77. Problems with pipeline injection points and mixing points - HCBBS Forum
78. Using DN325 pipes to make DN426 elbows? - HCBBS Forum
79. Can a sealed sampler be installed directly on a straight pipe section of the pipeline? - HCBBS Forum
80. How is the moment for pipeline stress analysis calculated? - HCBBS Forum
81. Issues with three-way or four-way valves - HCBBS Forum
82. The straight pipe section between the pipeline welds is insufficient - HCBBS Forum
83. How to choose between electric valves and pneumatic valves? - HCBBS Forum
84. How many types of valves are there? Have you seen them all? - HCBBS Forum
85. Regarding the diaphragm seal of Luofu safety valves - HCBBS Forum
86. Seeking guidance on the concept of valve cleanliness grade - HCBBS Forum
87. Bottom discharge valve - HCBBS Forum
88. Is it necessary to recalibrate the safety valve after it operates and trips? - HCBBS Forum
89. Problems in the design of superheated steam tracing systems - HCBBS Forum
90. Regarding petrochemical process pipelines - HCBBS Forum
91. Do standards such as ASME B16.11 apply to TUBE or PIPE? - HCBBS Forum
92. How is the pressure drop of a pipeline after pressure reduction calculated? - HCBBS Forum
93. The oil pressure for the cut-off valve at the inlet of the catalytic flue gas extractor cannot be maintained - HCBBS Forum
94. Issues regarding the insulation and corrosion protection of water supply pipes~ - HCBBS Forum
95. Who has pictures of the H77X-10 check valve? - HCBBS Forum
96. Regarding pipes after the hydrostatic test, can welding be performed? - HCBBS Forum
97. What welding materials are used for 316Ti pipes! - HCBBS Forum
98. What size flange should be used for valves 25, 35, and 45? - HCBBS Forum
99. Why do the valves keep failing? Is it a quality issue or incorrect operation? - HCBBS Forum
100. What’s the quality like? - HCBBS Forum