English — Forum #92 (Page 74/87)

1. Difference between split adjustable shrinkage holes and balanced adjustable shrinkage holes - HCBBS Forum
2. Flange manufacturers engage in cheating and cut corners in their work - HCBBS Forum
3. Determine wall thickness based on pipeline grade - HCBBS Forum
4. Why is R≠1.5D for smaller-sized 90° elbows - HCBBS Forum
5. Top-mounted ball valve - HCBBS Forum
6. Newbies please ask the expert Hai Chuan for answers—questions regarding wall thickness and pressure - HCBBS Forum
7. What is the explosion protection rating of this ASCO valve? - HCBBS Forum
8. How to handle restarted projects - HCBBS Forum
9. National Training Manual for Pressure Pipeline Design Approvers (3rd Edition) - HCBBS Forum
10. Are there any limits on the operating temperature and pressure for pipe fittings such as elbows with seams, tees, and reducers? - HCBBS Forum
11. There is a small issue with the value chosen for the wall thickness of metal straight pipes; the wall thickness is known from calculations - HCBBS Forum
12. Regarding the maintenance of hard-sealed hemispherical valves - HCBBS Forum
13. Reasons for the failure of mechanical seals - HCBBS Forum
14. Pressure testing of low-temperature gate valves - HCBBS Forum
15. Related to orifice plate flow meters - HCBBS Forum
16. How is constant flow control implemented for pressure control in a synthesis loop? - HCBBS Forum
17. Adjusting valve characteristics - HCBBS Forum
18. Rubber flanges, also known as flexible connectors, are similar to expansion joints; do they need to be wrapped inside when used for insulation? - HCBBS Forum
19. Pipeline materials resistant to 30% hydrochloric acid - HCBBS Forum
20. Series A pipes and Series B pipes are connected using flanges - HCBBS Forum
21. [Sealing Knowledge] Performance of static sealing gaskets http://www.dianpian.cn/ - HCBBS Forum
22. Why does a thermodynamic steam trap only emit steam and not drain water? ! How should it be solved? - HCBBS Forum
23. The municipal waste incineration industry requires flue valves that can withstand high temperatures and acid corrosion. - HCBBS Forum
24. Can low-temperature pipelines carry media at normal temperature? - HCBBS Forum
25. How are the socket-welded branch pipe bases welded to the main pipe, and how are the pipes opened? - HCBBS Forum
26. Piping pressure testing - HCBBS Forum
27. What are the standards for the dual-valve setup of high-pressure hydrogen? ? Urgent! - HCBBS Forum
28. Does pipe welding allow small pipes to be inserted into larger pipes? - HCBBS Forum
29. Seeking help with pipeline characteristic table - HCBBS Forum
30. Which air duct valve should be chosen for DN450? See the figure - HCBBS Forum
31. Do pipes need to be classified as positive-pressure pipes or negative-pressure pipes when they leave the factory? - HCBBS Forum
32. Which way is the direction of the pipeline quick connector? - HCBBS Forum
33. Need help with a valve issue? - HCBBS Forum
34. Issues regarding the welding and installation costs of buried heating pipes - HCBBS Forum
35. Safety valve long-radius elbow and dimensions - HCBBS Forum
36. Installation distance of the steam trap - HCBBS Forum
37. Location of the filter pressure reducing valve in the piping - HCBBS Forum
38. Quotations for welding and installation of heating pipelines - HCBBS Forum
39. What type of valve is AQ41R-150LB DN50 RF? - HCBBS Forum
40. How is the pipe expansion amount calculated for pipes with casting materials?~ - HCBBS Forum
41. Spherical compensators are widely used in superheated steam thermal pipelines - HCBBS Forum
42. I’m asking for help from all the experts here! Can large ends and elbows be welded together? - HCBBS Forum
43. What kind of pipe fitting is this? - HCBBS Forum
44. In chemical plants, under what circumstances are seamless steel pipes required for pipelines? - HCBBS Forum
45. Regarding ammonia stop valves - HCBBS Forum
46. Wave compensator - HCBBS Forum
47. Some questions regarding GB/T13401-2017 - HCBBS Forum
48. Newbie seeking help: What is the purpose of the groove on the cover of a swing check valve? - HCBBS Forum
49. Fuel gas pipeline ring heating furnace - HCBBS Forum
50. Valve selection - HCBBS Forum
51. Those who sell valves and those who buy them should pay closer attention: Illegal acts related to safety production | Everyone is close to committing crimes - HCBBS Forum
52. How to match quick-install chucks with pipes of different standards - HCBBS Forum
53. Take a look at what kind of tube it is in the picture - HCBBS Forum
54. I would appreciate it if experts could help me understand the differences between these standards - HCBBS Forum
55. Eccentric hemispherical control valve - HCBBS Forum
56. Seeking assistance with the design of a circulating water pump and its buffer tank - HCBBS Forum
57. Pressure relief valve noise reduction silencer regulator - HCBBS Forum
58. It’s the first time I’ve seen a safety valve this large - HCBBS Forum
59. Working principle and process of the 100X remote control float valve - HCBBS Forum
60. Flange selection - HCBBS Forum
61. Are there corresponding product standards for Rp, Rc, and G threaded fittings? - HCBBS Forum
62. Expert help - HCBBS Forum
63. How is the valve industry doing recently? - HCBBS Forum
64. How is the flow rate in process pipelines determined? - HCBBS Forum
65. Consultation on special sewage valves - HCBBS Forum
66. Standards for welding branch pipe fittings to main pipelines - HCBBS Forum
67. Differences between one-piece ball valves and two-piece ball valves - HCBBS Forum
68. Relationships between the main parameters of safety valves - HCBBS Forum
69. Selection of root valve - HCBBS Forum
70. Leakage from metal wound gaskets - HCBBS Forum
71. The temperature-pressure ratings of the flanges and valves in the CLASS series are the same. Why are PN’s different? - HCBBS Forum
72. How to choose a valve - HCBBS Forum
73. Working principles of various types of valves and pressure testing methods - HCBBS Forum
74. Non-combustible insulation material for steam pipes - HCBBS Forum
75. Whether the valve can be opened and closed during stress testing - HCBBS Forum
76. What are the requirements for the installation of clamp lift check valves? - HCBBS Forum
77. How can the steel rings of CL2500 DN25 and PN100 DN32 be the same? Is it universal? - HCBBS Forum
78. Seeking help regarding pneumatic valves for hydrochloric acid pipelines - HCBBS Forum
79. Common seal ring materials - HCBBS Forum
80. Piping layout plan - HCBBS Forum
81. In HG/T 20592 Flange SO 600-25 RF 9.53, what do 25 and 9.53 mean? - HCBBS Forum
82. Who has the Cameron Hydraulic Data, version 16? - HCBBS Forum
83. I would like to ask, is API600 the same as BS1414? - HCBBS Forum
84. Calculation of orifice plates for pressure adjustment - HCBBS Forum
85. What do these numbers and letters represent for pipes? - HCBBS Forum
86. Compensation issues for PP/FRP pipes - HCBBS Forum
87. PTFE gasket - HCBBS Forum
88. Air valve - HCBBS Forum
89. PID - HCBBS Forum
90. Is it allowed not to provide a drainage slope for the steam pipes outside the plant? - HCBBS Forum
91. What is the function of the small hole on the safety valve of Wuhan Boiler Valve Group? It is used on boiler drums; analysis of the reasons for minor air leakage - HCBBS Forum
92. Is the steam pipeline for purging the equipment connected to the main steam pipe? - HCBBS Forum
93. Looking for high-temperature valve casting factories - HCBBS Forum
94. Self-acting pressure relief valve - HCBBS Forum
95. Help needed regarding pipeline issues - HCBBS Forum
96. Calculation of safety valve springs - HCBBS Forum
97. Flange bolt specification table - HCBBS Forum
98. Detailed introduction to the types and applications of steel plates and steel strips - HCBBS Forum
99. Help! Friction flange – regular cracks appear during testing! - HCBBS Forum
100. Pressure balance tube - HCBBS Forum