English — Forum #92 (Page 41/87)

1. The fixing bracket should be secured before the compensating device is pre-stretched or compressed – how should this be understood? - HCBBS Forum
2. I have a question: what is the purpose of the small holes on the back side of the butterfly valve’s disc? - HCBBS Forum
3. Help: unit of volumetric flow rate - HCBBS Forum
4. Valves on the dirty nitrogen pipeline - HCBBS Forum
5. The picture shows a home heating pipe. What valve is circled in red and what is its function? ? ? - HCBBS Forum
6. Some questions about pressure relief valves - HCBBS Forum
7. What process requirements must high-temperature butterfly valves meet? - HCBBS Forum
8. Under what circumstances are metal flexible pipes needed at the pump’s inlet and outlet? - HCBBS Forum
9. Pipeline leak - HCBBS Forum
10. Strange signs in the pipeline—rising pressure - HCBBS Forum
11. Pressure testing of low-temperature valve housings - HCBBS Forum
12. Suppliers of pipe fittings made from various materials - HCBBS Forum
13. Pressure reduction effect and application range of pressure relief valves - HCBBS Forum
14. Video on the working principle of flanged butterfly valves - HCBBS Forum
15. Can’t butterfly valves be used in oxygen medium pressure pipelines? - HCBBS Forum
16. How to cut 3PE pipes? How to repair the cut? - HCBBS Forum
17. Who knows what brands of valves are used in the hydrogen refueling stations that have been built in China? - HCBBS Forum
18. Traffic calculation problem - HCBBS Forum
19. Regarding the determination of design parameters and test pressure of pipelines? - HCBBS Forum
20. Seeking guidance on valve pressure testing standards - HCBBS Forum
21. Question regarding the effective perimeter in the definition of Ag for the calculation of the minimum cross-sectional area of the valve body and valve cover connection studs - HCBBS Forum
22. Display of wear-resistant and corrosion-resistant valves - HCBBS Forum
23. Pipeline pressure testing - HCBBS Forum
24. LNG air separation cryogenic valves - HCBBS Forum
25. Single-acting pneumatic, air-shut off - HCBBS Forum
26. What material is gas pipeline A182 F60 made of? - HCBBS Forum
27. Chemical Process Piping Design Manual - HCBBS Forum
28. Introduction to knowledge related to the use of butterfly valves - HCBBS Forum
29. Powder valve - HCBBS Forum
30. What type of load-bearing support should be chosen for the vertical pipe of DN350? - HCBBS Forum
31. Advantages of low-flow control valves - HCBBS Forum
32. 【Zhu Peiyuan】 Butterfly Valve Design Technology and Atlas - HCBBS Forum
33. Regarding the selection of steam traps - HCBBS Forum
34. Standards for determining the structural length of valves - HCBBS Forum
35. What color are square tubes usually? - HCBBS Forum
36. Question: What is the purpose of this hole on the safety valve body? - HCBBS Forum
37. Should the studs used for pipe flange connections be hot-dip galvanized or blackened? - HCBBS Forum
38. Regarding the requirement to provide a manufacturing supervision and inspection certificate for pressure pipeline components - HCBBS Forum
39. What unit does the PN value correspond to? - HCBBS Forum
40. Can bolts of M27 size be used interchangeably with 1"-8UN size? - HCBBS Forum
41. Friction force calculation under the conditions of external pipe galleries in the plant area - HCBBS Forum
42. Parallel connection of electric butterfly valve actuators - HCBBS Forum
43. Why, under the same pressure, are the valve bodies of valves made from forgings much larger and heavier than those made from castings? - HCBBS Forum
44. How to read the standard pipe and suction flange drawings - HCBBS Forum
45. What is the bagging property of pipelines? - HCBBS Forum
46. Selection issues for safety valves - HCBBS Forum
47. Which brands of solenoid valves offer good value for money? - HCBBS Forum
48. Regarding progress tracking issues - HCBBS Forum
49. Questions regarding chemical pipeline materials - HCBBS Forum
50. How to understand the 3.1 certificate for valve companies? - HCBBS Forum
51. About the meaning of English code names in the single-line diagram material description - HCBBS Forum
52. Heterosaddle ring (super rectangular saddle ring) - HCBBS Forum
53. Distinguish between 15CrMoG and 20G, etc - HCBBS Forum
54. Does sulfuric acid medium belong to Class A1 fluids? - HCBBS Forum
55. Problems with flange connections for pipes and valves - HCBBS Forum
56. A question about the standards of U-PVC pipes and fittings - HCBBS Forum
57. Rosemount 3051 Transmitter Installation Manual - HCBBS Forum
58. Regarding the use of butterfly flanges - HCBBS Forum
59. What is the difference between the flanged ball valves Q41Y-16C and Q41F-16C? - HCBBS Forum
60. Fluorinated butterfly valve - HCBBS Forum
61. 4“Someone else has the dimension chart for the 1500lb flange; could you share it? Thanks!” - HCBBS Forum
62. Is it still necessary to use a bonding wire between the flanges of fuel and gas pipelines when metal-graphite wound gaskets are used? - HCBBS Forum
63. Dimensions and specifications table for stainless steel pipes and valves - HCBBS Forum
64. Do you want to become an expert in using control valves? - HCBBS Forum
65. Rough-faced flanged ball valve - HCBBS Forum
66. Regarding the pipeline layout in the pipe gallery - HCBBS Forum
67. High-pressure fittings – by Ren - HCBBS Forum
68. Discussion on the calculation of pipeline insulation thickness - HCBBS Forum
69. What is a flexible pipe connection - HCBBS Forum
70. Issues with cartridge ball valves; seeking expert assistance - HCBBS Forum
71. Is an isolation gasket required between the stainless steel pipe and the heat-tracing pipe (carbon steel)? - HCBBS Forum
72. What is the difference between electric valves and pneumatic valves? - HCBBS Forum
73. Flange calculated inner diameter - HCBBS Forum
74. Pipe clamp on the pipe cap - HCBBS Forum
75. Regarding the issue of installing protective sleeves on valve seats for pipeline purging and welding - HCBBS Forum
76. Problems with impact testing of low-temperature steel per GB20801.2 - HCBBS Forum
77. Regarding the jacket tube issue - HCBBS Forum
78. Troubleshooting and maintenance of faulty control valves - HCBBS Forum
79. Related PID drawings - HCBBS Forum
80. What do the letters Y and A in the YD343HA－10C DN900 model represent? - HCBBS Forum
81. Installation height of pneumatic diaphragm pump - HCBBS Forum
82. Liquid oxygen filling device - HCBBS Forum
83. How should rubber expansion joints be selected? - HCBBS Forum
84. What weight should the transition flange used to connect a 10-kilogram valve to a 0.6-kilogram valve have? - HCBBS Forum
85. Question: What standards should be referred to when selecting the grade of welding electrodes (or welding wire) for welding pipes? - HCBBS Forum
86. Is this for refueling? - HCBBS Forum
87. Is there a significant difference in the actual function of the valve core in V-type ball valves? - HCBBS Forum
88. Heat treatment - HCBBS Forum
89. Which valve is more expensive, Z41Y-25P or Z41W-25P? - HCBBS Forum
90. Is there anything wrong with the bracket in the image below? - HCBBS Forum
91. Information on the design of primary and secondary pipelines - HCBBS Forum
92. For the flanges at the openings of pressure vessels, American standards should be used; can national standards be used for manhole flanges? - HCBBS Forum
93. Seeking pictures of valves and their Chinese names - HCBBS Forum
94. Safety valve verification requirements for fire water pump adapters - HCBBS Forum
95. Is it necessary to connect a pipe to the outlet of the safety valve on the compressed air storage tank? - HCBBS Forum
96. Question: Valve selection regarding pipes containing metal, iron slag, and nails - HCBBS Forum
97. Precautions for pressurized plugging of high-pressure gas pipelines - HCBBS Forum
98. Simulation diagram of the on/off motion grid of a slide valve - HCBBS Forum
99. I have a question regarding the steel stamp on the butterfly valve body - HCBBS Forum
100. Supply seamless steel pipes, steel materials, profiles - HCBBS Forum