English — Forum #92 (Page 43/87)

1. What is the crystal structure of grade 20 steel, which is commonly used? - HCBBS Forum
2. Valve spare parts kit - HCBBS Forum
3. The issue of negative pressure resistance in pressure pipelines - HCBBS Forum
4. What is the purpose of the graphite applied inside the metal-graphite wound gasket? - HCBBS Forum
5. S39042 pipe - HCBBS Forum
6. Selection of material for 22MPA hydrogen pipelines - HCBBS Forum
7. How to perform the ammonia permeation test - HCBBS Forum
8. Which expert knows what kind of valve this is? - HCBBS Forum
9. Regarding the manufacturing standards for pipe fittings - HCBBS Forum
10. Regarding the thickness of the galvanizing layer on hot-dip galvanized steel pipes - HCBBS Forum
11. The valve sealing surface H has two different standard definitions; how should this be handled? - HCBBS Forum
12. Regulations regarding the design pressure of pipelines - HCBBS Forum
13. Can pure tetrafluoro pipes be used directly in industry? - HCBBS Forum
14. I would like to ask what material is suitable for butterfly valves used in pipelines carrying 30% dilute sulfuric acid, at a pressure of 1.0 Mpa - HCBBS Forum
15. Selection of safety valves - HCBBS Forum
16. Request for a sample record of on-site supervision for pipeline weld heat treatment - HCBBS Forum
17. The pipe material is Q235; is there a version of the valve body made of Q235 as well? - HCBBS Forum
18. How can household tap water solve the problem of idling? - HCBBS Forum
19. Problems with using carbon steel U-bolts for 304 steel pipes - HCBBS Forum
20. Pipeline calculation - HCBBS Forum
21. Sulfuric acid pipeline clearance - HCBBS Forum
22. Regarding the issue of oxygen pipelines passing through the roof - HCBBS Forum
23. What does two-way pressure difference for industrial control valves mean? Does it mean two-way sealing? What exactly is a two-way seal? - HCBBS Forum
24. Regarding the issue of mixing steam at different pressures - HCBBS Forum
25. Installation of square steam pipe compensators and location of drain valves - HCBBS Forum
26. Advantages and disadvantages of various types of valves: gate valves, butterfly valves, ball valves, globe valves, plug valves, safety valves, steam traps, pressure relief valves, check valves - HCBBS Forum
27. The effect of bubbles in the pipeline on flow rate - HCBBS Forum
28. I would like to know the composition of liquefied petroleum gas; in which book or standard can I find this information? - HCBBS Forum
29. The pressure rises after the pump is stopped in the inlet pipeline of the loading pump, reaching up to 2.9 MPa - HCBBS Forum
30. Definition of vacuum tube - HCBBS Forum
31. Control the temperature control valve according to the steps below - HCBBS Forum
32. Issues with the M10 bracket in the standard pipe rack drawings - HCBBS Forum
33. Questions regarding the material of valve internals - HCBBS Forum
34. DN300 0.4MPa municipal medium-pressure gas pipeline with openings for connecting DN200 branch pipes - HCBBS Forum
35. What do the letters and numbers in the pipeline number mean? - HCBBS Forum
36. Do manufacturers of pressure pipes with steel linings made of PTFE or PO still need a manufacturing license? - HCBBS Forum
37. Dimension standards for DN15~DN40 reducers (butt-welded) - HCBBS Forum
38. Nitrogen purging of chemical process pipelines - HCBBS Forum
39. Gasket selection - HCBBS Forum
40. Minimum opening pressure of the check valve - HCBBS Forum
41. What is a thermal insulation material similar to cement? - HCBBS Forum
42. What does ET30 mean in 32-OWS4001-1.2A2-ET30? Thank you. - HCBBS Forum
43. Problems with the sealing surfaces of steel flat-face flanges and plastic-lined pipe flanges - HCBBS Forum
44. Valve flow resistance calculation - flow velocity - HCBBS Forum
45. ASCO solenoid valve stationary core - HCBBS Forum
46. Water pump import and export - HCBBS Forum
47. Development and Application of Three-Eccentric Butterfly Valves - HCBBS Forum
48. How to select integral steel pipe flanges IF per ASME B16.5 standard - HCBBS Forum
49. Consult about the material of small-diameter butt-welded pipe caps - HCBBS Forum
50. Check valve opening pressure issue - HCBBS Forum
51. Pneumatic control valve, pneumatic high-pressure shut-off valve - HCBBS Forum
52. Pipeline information - HCBBS Forum
53. How is the correspondence between pipe size and thickness determined? - HCBBS Forum
54. Why does boiler water need to be softened for electric thermostatic valves? - HCBBS Forum
55. suction valve - HCBBS Forum
56. The technology promoted by the Ministry of Industry and Information Technology – the technology for circulating water systems - HCBBS Forum
57. I have a question for the seniors - HCBBS Forum
58. Can the outlet of a down-flow valve or an up-flow valve be connected to a pump? Is the amount enough? - HCBBS Forum
59. Regarding the use of palatal gate valves - HCBBS Forum
60. Should the classification of sulfuric acid pipelines be upgraded to GC1? - HCBBS Forum
61. RJ valve sealing surface - HCBBS Forum
62. What are the advantages and disadvantages of using welded valves in liquid ammonia pipelines? - HCBBS Forum
63. Share the online flange data lookup website - HCBBS Forum
64. Please tell me if there is any problem with the arrangement of the eccentric and large heads of the centrifugal pump inlet in the picture. - HCBBS Forum
65. Features of the triple-eccentric multi-layer hard-sealed butterfly valve product - HCBBS Forum
66. What is the difference between valve flow resistance and pipeline pressure drop? - HCBBS Forum
67. Pipe fittings - HCBBS Forum
68. ????, the management wants to use welded ball valves instead of flanged butterfly valves. - HCBBS Forum
69. Safety valve inlet and outlet pipe grades - HCBBS Forum
70. Masters and experts, please help me look at this question. Thank you very much! - HCBBS Forum
71. Adding a return pipeline to a high-pressure injection pump – how to reduce pipeline vibration - HCBBS Forum
72. I have a question regarding the use of metal wound gaskets - HCBBS Forum
73. This valve is on the chemical dosing unit; it’s a pump-valve combination. Which manufacturer makes it? Does it work on the same principle as a metering pump? ? ? - HCBBS Forum
74. Issues regarding total pressure and static pressure in pipes - HCBBS Forum
75. Issues with the representation of non-standard elbow models - HCBBS Forum
76. Issues regarding the annual inspection of safety valves on LNG carriers - HCBBS Forum
77. Selection type of ball valves for DN100 natural gas pipelines - HCBBS Forum
78. Could an expert please advise on how to prepare a tender document, and what steps are needed to ensure it is perfect? - HCBBS Forum
79. What should be the angle between the exhaust pipe of the heat transfer oil gas separator and the vertical direction? - HCBBS Forum
80. Theoretical weight table for stainless steel wound gaskets for pipe flanges - HCBBS Forum
81. Kiln cylinder connection flange - HCBBS Forum
82. Some questions regarding oxygen pipeline installation - HCBBS Forum
83. Can pipe branches be placed on the ground to serve as supports for the main pipes? - HCBBS Forum
84. May I ask how pipes other than the pressure pipes – industrial pipes GC1, GC2, and GC3 – are managed? Are there any regulations for this? - HCBBS Forum
85. Sealing issues of pipeline valves for hydrogen-containing gases - HCBBS Forum
86. American standards, valves, models, markings - HCBBS Forum
87. Can the Fisher pneumatic control valve adjust both flow and pressure? - HCBBS Forum
88. Can fittings specified in GB14383 be used with pipes specified in GB6479? - HCBBS Forum
89. When using thermal paste, the maximum allowable effective heat tracing length should be reduced by 20% - HCBBS Forum
90. Non-standard pipe supports - HCBBS Forum
91. Does anyone know the exact composition of Hastelloy? - HCBBS Forum
92. Pipeline corrosion rate - HCBBS Forum
93. For material tanks equipped with nitrogen sealing and flame arrestor vent valves, what should be the appropriate opening pressure for these vent valves? - HCBBS Forum
94. What is the function of the two DN20 connections at the front and back of the pump? - HCBBS Forum
95. As of now, which is better between J41H and J41Y for valves? - HCBBS Forum
96. Use of 310S material - HCBBS Forum
97. Methods and precautions for using casings in pipeline crossings under railways - HCBBS Forum
98. Are flexible connections required for the inlet and outlet of liquefied gas cylinders? - HCBBS Forum
99. How is a check valve connected to a bypass through an opening in the valve plate? - HCBBS Forum
100. Fitting series corresponding to the Ⅰb series of pipes - HCBBS Forum