English — Forum #92 (Page 18/87)

1. What does the arrow on the valve mean? Stop misunderstanding! - HCBBS Forum
2. What is the difference between carbon steel and low-temperature carbon steel? - HCBBS Forum
3. Construction begins on the on-site pipeline network module manufacturing facility for the 1.2 million tons per year Phase II ethylene project at Dushanzi Petrochemical Tarim - HCBBS Forum
4. J-T valve consultation - HCBBS Forum
5. Licensing rules for special equipment production and filling units - HCBBS Forum
6. Is the height of the discharge outlet for pipes carrying non-flammable media related to pressure? - HCBBS Forum
7. Problems during valve pressure testing - HCBBS Forum
8. The issue of stabilizing the pressure of the process nitrogen supply - HCBBS Forum
9. Selection of sulfur-resistant valves for sulfur-containing operating conditions - HCBBS Forum
10. How to analyze the stress at the outlet of the tower bottom head? After the analysis, the results should be submitted to the equipment department for tower fabrication - HCBBS Forum
11. How to determine the compensation bend for steam pipelines? - HCBBS Forum
12. CHOKE VALVE - HCBBS Forum
13. Help request: I’m looking for recommendations for manufacturers of slide valve types that can handle very low flow rates~ - HCBBS Forum
14. The float of the ball-type drain valve has been flattened - HCBBS Forum
15. In what situations cannot ultrasonic testing be performed? - HCBBS Forum
16. Looking for sharing on piping plugins - HCBBS Forum
17. Please help, experts – what does the marking A150 on this flange mean? - HCBBS Forum
18. Is the formula I developed to calculate the temperature drop of superheated steam correct? - HCBBS Forum
19. That expert, what does the description in the following material mean? - HCBBS Forum
20. Typical applications of ultra-high pressure, high-frequency, zero-leakage solenoid valves - HCBBS Forum
21. 【Ten Years of Rapid Development in Chemical Equipment】Nationalization efforts for high-temperature wear-resistant ball valves used in propane dehydrogenation catalysts launched from 2015 to 2024 - HCBBS Forum
22. 【Ten Years of Rapid Development in Chemical Equipment】2254–2025: Successful Application of China’s First Terahertz Inspection Equipment for Polyethylene Pipes - HCBBS Forum
23. Difference between hard-sealed gate valves and soft-sealed gate valves - HCBBS Forum
24. May I ask how the insertion depth for the electrofusion joining of perforated steel-reinforced polyethylene composite pipes is determined? - HCBBS Forum
25. Is there a relationship between pressure and flow rate? - HCBBS Forum
26. China Railway Construction produces bamboo-based composite pipes - HCBBS Forum
27. Flow meters on pressure pipelines - HCBBS Forum
28. For chemical wastewater treatment plants—are there any decent valves for evaporator systems? The ones we’ve been using have not been good; let’s discuss it - HCBBS Forum
29. Instrument valve leak test - HCBBS Forum
30. C-type wear-resistant ball valve dedicated for silicon powder - HCBBS Forum
31. Liquid slugging occurred after the modification of the steam condensate in the distillation column reboiler - HCBBS Forum
32. 【Haichuan Equipment Guessing Game】Achieving technological breakthroughs in valves for special equipment in the petroleum and petrochemical industries - HCBBS Forum
33. Welding of dissimilar steel materials in pipelines - HCBBS Forum
34. Help: Does a finished straight-seam welded pipe have to have only one weld? - HCBBS Forum
35. I would like to know what qualifications are required to issue a safety valve calibration report - HCBBS Forum
36. Please help, experts – what does this mean? - HCBBS Forum
37. List of safety valve manufacturers – Which manufacturers produce high-quality safety valves? - HCBBS Forum
38. Why does the temperature inside the pipe rise? - HCBBS Forum
39. [Ten years of development of chemical equipment] 1166-2022 The world’s largest special-shaped pipe clamp was successfully installed on the seabed - HCBBS Forum
40. Pipeline material selection in cold regions - HCBBS Forum
41. Usage methods and safety knowledge for gas pressure reducers - HCBBS Forum
42. Dear experts, I would like to ask some questions regarding the installation of pneumatic valves. - HCBBS Forum
43. Can polypropylene containers and pipes be used to store and transport hydriodic acid? - HCBBS Forum
44. Piping test pressure - HCBBS Forum
45. These pipes have different appearance colors. What do they mean? - HCBBS Forum
46. Does the flange grade on the pipeline need to match the flange grade of the equipment? - HCBBS Forum
47. Applications where a three-eccentric butterfly valve is necessary - HCBBS Forum
48. Which are the reputable manufacturers of plug valves, both domestically and internationally? - HCBBS Forum
49. Regarding the issue of filters based on angle - HCBBS Forum
50. Should the length of the safety valve bolt be determined based on the returned parts? - HCBBS Forum
51. Applications of expanded polytetrafluoroethylene sealing strip materials - HCBBS Forum
52. Which standard governs the notation of flexible metal hose codes? - HCBBS Forum
53. Heat treatment issues after welding the eight-slot flange connection plates - HCBBS Forum
54. Classic Documents----Ball Valve Maintenance Package - HCBBS Forum
55. Questions regarding the minimum wall thickness of fittings in GB/T12459S standard - HCBBS Forum
56. Do you know the correct way to open and close a manual valve? - HCBBS Forum
57. Flange torque wrench that can tighten multiple bolts simultaneously - HCBBS Forum
58. Can a gate valve be left partially open for an extended period of time? - HCBBS Forum
59. [Ten years of major development in chemical equipment] 1226-2023 The first domestic hydrogen-doped natural gas pipeline discharge jet fire test - HCBBS Forum
60. Regarding valve trim, it mainly relates to the sealing surface – why is cemented carbide used? - HCBBS Forum
61. The stem of the butterfly valve is severely corroded – can it still be used? - HCBBS Forum
62. Who has the resources for these valves? We need to purchase them - HCBBS Forum
63. Problem of support disengagement due to secondary stresses in pipelines - HCBBS Forum
64. Support for reciprocating compressor outlet pipeline - HCBBS Forum
65. Can metal pipe long-radius elbows be directly welded to necked butt-weld flanges? - HCBBS Forum
66. How do you write winding gasket? - HCBBS Forum
67. Selection of chemical dosing units for crude oil transport pipelines - HCBBS Forum
68. Classification of hardness - HCBBS Forum
69. How do you survey and map the large-diameter flanges at the user’s site? - HCBBS Forum
70. Flange welding sandblasting and painting sealing surface protective waterproof cardboard sticker - HCBBS Forum
71. Seeking the international standard corresponding to GB/T 16675.1-2012 - HCBBS Forum
72. Description of globe valves - HCBBS Forum
73. KITZ Valves Section - HCBBS Forum
74. Should metal pipes be installed vertically or horizontally as branches? - HCBBS Forum
75. Internal leakage of the valve - HCBBS Forum
76. Seeking help regarding German standard flanges - HCBBS Forum
77. Have a question about heat treatment? - HCBBS Forum
78. Pipe dimension marking - HCBBS Forum
79. Is the valve stem of the outlet gate valve for the low-temperature pipeline safety valve installed horizontally? ? ? - HCBBS Forum
80. How to calculate the corrosion rate of pipe wall thickness. - HCBBS Forum
81. [Ten years of development of chemical equipment] 1192-2023 20" large diameter high-pound metal-sealed wear-resistant ball valve - HCBBS Forum
82. Condensation elbow for steam pressure gauge - HCBBS Forum
83. Are there any regulations regarding the selection of valves for ammonia pipelines? - HCBBS Forum
84. 【Ten Years of Rapid Development in Chemical Engineering Equipment】Precise Tunneling for China’s Longest Oil and Gas Pipelines from 1253 to 2019 - HCBBS Forum
85. How to select valves for media that are fluorine-containing, chlorine-containing, have solid particles, and are viscous? - HCBBS Forum
86. Standards for safety valves used with external devices - HCBBS Forum
87. [Exclusive in China] Shanghai Pudong Hanwei Valve Co., Ltd. has once again successfully delivered high-performance \"24-way rotary valves\"” - HCBBS Forum
88. Video on the working principle of C-type ball valves - HCBBS Forum
89. What standards are followed for the external dimensions of PPR fittings, such as length, height, and thickness? - HCBBS Forum
90. Regarding pipe clamp-type rigid hangers - HCBBS Forum
91. Does hydrogen increase the risk of pipeline leaks: How to address it? - HCBBS Forum
92. Regarding the use of cemented carbide, namely 13Cr+HF, for gate valve internals - HCBBS Forum
93. On-site photos of reboiler spring supports - HCBBS Forum
94. Anti-static bonding issues for pipeline flanges - HCBBS Forum
95. If the bending radius of a elbow is not specified, is it assumed to be the long radius or the short radius by default? - HCBBS Forum
96. Are there any insulation (cooling) materials that do not require support brackets? - HCBBS Forum
97. What are top-mounted ball valves and side-mounted ball valves? - HCBBS Forum
98. Flange leakage dual-prevention transparent series - HCBBS Forum
99. Shanghai KAIWEIXI’s 24-inch class 900 molecular sieve ball valve will help increase the production capacity of the Power of Siberia 1 pipeline - HCBBS Forum
100. How difficult is it to handle insulation materials? ? Manufacturer: Let the experienced construction workers take a look - HCBBS Forum