English — Forum #92 (Page 80/87)

1. Pipe connections using threads and socket welding - HCBBS Forum
2. Server (IO) Error occurred while uploading the image - HCBBS Forum
3. Are there any rubber-lined or fluorine-lined butterfly valves that allow for quick replacement of the vulnerable rubber seals or valve discs? - HCBBS Forum
4. Gasket model - HCBBS Forum
5. Seeking pipe partners! - HCBBS Forum
6. Regarding the maintenance of hard-sealed hemispherical valves - HCBBS Forum
7. Purchasing standards for water-soluble paper - HCBBS Forum
8. Leakage ratings of control valves and shut-off valves - HCBBS Forum
9. Safety valve issues - HCBBS Forum
10. Vertical check valve - HCBBS Forum
11. What type of metal wound gasket is used for steam pipes? - HCBBS Forum
12. Regarding the requirements for the thread precision of Y-type filters, everyone is welcome to add their comments - HCBBS Forum
13. Comparison between red copper and brass - HCBBS Forum
14. Which specifications are applied to non-metallic pipes? - HCBBS Forum
15. I would like to ask about the installation direction of the circulating water butterfly valve - HCBBS Forum
16. Air pressure of the pneumatic valve - HCBBS Forum
17. Can SY/T5037 pipes be used for 0.3MPa compressed air? - HCBBS Forum
18. RTO incinerator high-temperature bypass/emission valve - HCBBS Forum
19. What is the standard basis for the dual-valve arrangement in series with the tank plug? - HCBBS Forum
20. Pipeline insulation thickness - HCBBS Forum
21. What are the methods for detecting internal leakage in valves? - HCBBS Forum
22. There are more experts - HCBBS Forum
23. Manufacturing process and price of fluorine-lined valves - HCBBS Forum
24. Reasons for the disconnection of buried condensate pipe elbows - HCBBS Forum
25. Issues with flange specifications? - HCBBS Forum
26. Regarding the flange material, I’m not sure if PP-GF refers to PP lined with steel - HCBBS Forum
27. There is a case regarding internal leakage in a safety valve; I hope **you can help take a look at it - HCBBS Forum
28. Regarding the selection of welding materials - HCBBS Forum
29. Seeking advice on selecting pneumatic valves - HCBBS Forum
30. Pipe connection - HCBBS Forum
31. Everyone who applies butter to the valve screw – why do you do that? - HCBBS Forum
32. Chemical process pipelines and fire alarm circuits are on the same support, along with the fire suppression systems - HCBBS Forum
33. What is the temperature resistance of PTFE gaskets? - HCBBS Forum
34. I would like to ask whether a three-way valve can switch the inlet Can it be used for diversion and convergence? - HCBBS Forum
35. 『『Original Article No. 1 by HaiChuan Translation Team』Analysis of the Thermal Effects of Chemicals in Long-Distance Pipelines - HCBBS Forum
36. Is there an error in the pressure setting value in the PID? - HCBBS Forum
37. Can a pressure gauge be reset after it spills? - HCBBS Forum
38. I’m a bit confused about the changes in vent pressure - HCBBS Forum
39. Looking for manufacturers of small-diameter high-temperature and high-pressure stop valves and ball valves - HCBBS Forum
40. Is this a flange? - HCBBS Forum
41. Compliance of low-pressure steam pipelines using hex head bolts and I-type hex nuts - HCBBS Forum
42. Floating rust on pipes - HCBBS Forum
43. Do 20% ammonia pipelines need insulation? - HCBBS Forum
44. Issues regarding the installation of stainless steel pressure gauges on branch pipes of carbon steel pipelines - HCBBS Forum
45. A practical issue regarding safety valve leakage - HCBBS Forum
46. Questions about steam throttle orifice plates - HCBBS Forum
47. In the HTS-16K pneumatic control valve, the pressure before the valve exceeds the spring pressure, and the pressure drop is also quite significant - HCBBS Forum
48. Y-type three-pass filter - HCBBS Forum
49. Seeking help with issues regarding seamless steel pipes - HCBBS Forum
50. Why can’t a normally open stop valve be closed completely? - HCBBS Forum
51. Confusions in reading pipeline diagrams - HCBBS Forum
52. Sediment discharge valve - HCBBS Forum
53. What kind of valve is this? - HCBBS Forum
54. Does H44Y-25 belong to the category of spring-loaded check valves? - HCBBS Forum
55. On the leakage problems of chemical industry mechanical seals and maintenance countermeasures - HCBBS Forum
56. Specifications applicable to hex head threaded splices - HCBBS Forum
57. Principle of 2/2-way solenoid valve – Working diagram - HCBBS Forum
58. Electric ball valve malfunction, waiting online - HCBBS Forum
59. SH/T3425-2011 - HCBBS Forum
60. Which types of pipes require pressure testing - HCBBS Forum
61. Seek help with “Corrosion Data Charts” - HCBBS Forum
62. Where can I buy a valve stem protector? - HCBBS Forum
63. The problem of reduced-diameter tees - HCBBS Forum
64. Valve installation distance - HCBBS Forum
65. Issues regarding the operating environment of 20# steel - HCBBS Forum
66. Materials for supports and hangers of non-metallic pipes - HCBBS Forum
67. Is such a pipeline technical upgrade appropriate? - HCBBS Forum
68. Eliminating safety hazards: Detailed guide to the installation steps of bellows compensators - HCBBS Forum
69. May I ask about the model of the bellows compensator used when pipes pass through expansion joints? - HCBBS Forum
70. Does an electric valve need a manual valve for bypassing? - HCBBS Forum
71. Pipe length - HCBBS Forum
72. Is the standard for polyvinylidene fluoride (PVDF) pipes only ISO 10931-2005? Are there any relevant standards in China? - HCBBS Forum
73. There are multiple leakage points in the waste heat boiler; I’m not sure of the cause and seeking help. - HCBBS Forum
74. What gaskets are used for organic solvents such as cyclohexene? - HCBBS Forum
75. A pressure-self-sealing valve cover structure - HCBBS Forum
76. What should be done if sleeve compensators are used at both ends of a pipeline? - HCBBS Forum
77. To which qualification category do the design documents for fittings such as tees and elbows in pressure pipelines belong? - HCBBS Forum
78. Could someone help me figure out this pipeline diagram? There are some parts I don’t understand. - HCBBS Forum
79. Introduction to Incoloy800 alloy (including Incoloy 800, 800H, and 800AT alloys): Do you know everything about these special materials? - HCBBS Forum
80. Questions about the bottom valve - HCBBS Forum
81. ； Differences between welded gate valves and cast gate valves - HCBBS Forum
82. Help, what instrument does the diamond marked in the diagram represent? - HCBBS Forum
83. Information on getting started with PID diagrams and valves, as well as details on the types and uses of valves! I hope some seniors can share, thank you! - HCBBS Forum
84. Must the lower surface of the handwheel be in tight contact when the stop valve is fully closed? - HCBBS Forum
85. Why do the ends of the penetration sleeve need to be sealed? - HCBBS Forum
86. Selection of pneumatic control valves - HCBBS Forum
87. One-way valve issue - HCBBS Forum
88. Preheating and penetration issues in chromium-molybdenum steel welding - HCBBS Forum
89. Schematic diagram and structure of a gate valve - HCBBS Forum
90. How is the economic flow velocity for pipes determined? It’s not for water pipelines, but rather for those used to transport other fluids - HCBBS Forum
91. What are the consequences of improper installation of the guide cylinder for the compensator? - HCBBS Forum
92. Reactor vessel pipes and valves - HCBBS Forum
93. Are there any specifications for the design of the trial installation pipelines for GC2? - HCBBS Forum
94. What are the standards for ozone pipeline grade requirements? - HCBBS Forum
95. The combined use of flanges, gaskets, and bolts - HCBBS Forum
96. Do outdoor compressed air pipes need expansion joints? - HCBBS Forum
97. Pipe wall thickness calculation - HCBBS Forum
98. There is a blind flange in the middle of the pipe, and it is planned to insulate it – is that feasible? - HCBBS Forum
99. Flow rate calculation - HCBBS Forum
100. Manufacturer of butterfly springs for ball valves - HCBBS Forum