English — Forum #92 (Page 73/87)

1. What is the maximum vacuum tolerance of carbon steel-lined PTFE tubes? - HCBBS Forum
2. Every time pipes are installed on-site, there’s always a shortage of materials, and after adding more, there’s still a shortage； Or issues such as improper size control - HCBBS Forum
3. Excuse me, experts – what do the markings on the body of this control valve mean? - HCBBS Forum
4. About pressure relief valves - HCBBS Forum
5. Valve inlet - HCBBS Forum
6. How to select an individual pipe rack with a width of 2 meters? - HCBBS Forum
7. 20G —— this is the wall thickness chosen for this material - HCBBS Forum
8. May I ask for the name of this valve? - HCBBS Forum
9. The hazards of water mixing with hydraulic oil in hydraulic valves - HCBBS Forum
10. Steam insulation - HCBBS Forum
11. Toxicity standards of TSG D0001-2009 - HCBBS Forum
12. How to distinguish eccentric butterfly valves by appearance - HCBBS Forum
13. What are the features of butterfly valves specifically designed for transformers? - HCBBS Forum
14. Some people say that the direction of this hydrophobic valve is reversed; the arrow should point downward - HCBBS Forum
15. What do the technical requirements for steel pipes mean? - HCBBS Forum
16. Material selection for high-temperature 800° sulfuric acid valves - HCBBS Forum
17. Flow characteristics of butterfly valves - HCBBS Forum
18. Regarding the seal surface design and gasket selection for high-pressure flanges (such as PN320/400) - HCBBS Forum
19. There is no pressure behind the valve – is it a problem with the valve or with the pipeline design? - HCBBS Forum
20. Balance pipes before and after the valve - HCBBS Forum
21. Normally open 8-character blind plate - HCBBS Forum
22. Where can I find the volume of a standard 90° elbow with DN200? - HCBBS Forum
23. Are there many domestic manufacturers producing steel pipes and valves made of ALLOY 20 these days? - HCBBS Forum
24. Operation of the storage tank vent valve - HCBBS Forum
25. High-temperature gasket - HCBBS Forum
26. Superheated steam trap - HCBBS Forum
27. Introduction to the requirements of axial compensators for pipe rack design - HCBBS Forum
28. To remove the light hydrocarbon pipeline bypass, when the drain valve is damaged, how can the fluid inside the bypass be discharged safely and can it be removed safely? - HCBBS Forum
29. Do concentrated sulfuric acid pipes need insulation? - HCBBS Forum
30. Find the allowable stress for L290 - HCBBS Forum
31. The disc-type steam trap produces a clear metallic sound when in operation - HCBBS Forum
32. Discussion on the spacing between pipes and valves - HCBBS Forum
33. What grade of steel does 20Ⅱ refer to in the material design for ammonia pipelines? - HCBBS Forum
34. Is the national standard correct or is the industry standard correct? . ? ? - HCBBS Forum
35. How to distinguish steel pipes of different standards - HCBBS Forum
36. Ball valves suitable for high temperatures, vacuum, and fluids containing small solid particles - HCBBS Forum
37. Experts, take a look at the pipeline labels! - HCBBS Forum
38. Safety valve model - HCBBS Forum
39. Flange standards and fitting standards for PVC-U material - HCBBS Forum
40. How to calculate valve torque - HCBBS Forum
41. Selection of equipment flange grades - HCBBS Forum
42. Flange jumper - HCBBS Forum
43. I would appreciate it if experts could share their insights regarding the problems encountered during the actual construction of chemical plants. - HCBBS Forum
44. Difficulties with branch abbreviations in PDMS - HCBBS Forum
45. What factors of hydraulic oil affect the performance of seals? - HCBBS Forum
46. What are the names of the handles for the two types of butterfly valves? - HCBBS Forum
47. Regarding check valves - HCBBS Forum
48. Questions regarding high-temperature and high-pressure hydrophobic ball valves - HCBBS Forum
49. Differences between PSA programmable valves and methanol-to-hydrogen programmable valves - HCBBS Forum
50. Density counterweight for metal float level gauges - HCBBS Forum
51. Differences between SH/3410 and GB/T14383 - HCBBS Forum
52. What type of valve is this? - HCBBS Forum
53. What does BB;OS&Y mean? ? - HCBBS Forum
54. Incorrect selection of the cylinder drain valve - HCBBS Forum
55. Hydrochloric acid-resistant steel materials - HCBBS Forum
56. Questions regarding the use of disc springs - HCBBS Forum
57. Guess what this is for - HCBBS Forum
58. Valve abbreviations - HCBBS Forum
59. Regarding the filter elements of Y-type filters - HCBBS Forum
60. Installation direction of the check valve on the riser - HCBBS Forum
61. Are there steam pressure regulators that only reduce pressure without stabilizing it? - HCBBS Forum
62. What paint should be used for high-temperature steam pipes (over 290 degrees)? - HCBBS Forum
63. Which type of flange with connection surface should be used for low-pressure pipelines transporting gas? - HCBBS Forum
64. What kind of valve is this? - HCBBS Forum
65. Issue with the identification of flange end face types - HCBBS Forum
66. Regarding the issue of submitting pressure pipelines for inspection to the Special Inspection Institute - HCBBS Forum
67. There is an imported piece of equipment whose pipe connection ports have an outer diameter of 168.3; now, the pipes to be connected have an outer diameter of 159 - HCBBS Forum
68. Key factors to consider when selecting the material for compensator products - HCBBS Forum
69. Regarding the connection between the socket-welded gate valve and the pressure lead pipe - HCBBS Forum
70. Safety valve backpressure issue - HCBBS Forum
71. I would like to ask what HM means, as it is written on the body of the straight-through hemispherical valve - HCBBS Forum
72. Issues with the structural dimensions of valves - HCBBS Forum
73. Can the pressure-bearing capacity of an elbow be the same as that of a pipe of the same model? - HCBBS Forum
74. So happy with the piping - HCBBS Forum
75. The issue of selecting the second eccentricity value (radial eccentricity) for three-eccentric butterfly valves - HCBBS Forum
76. I recommend a free control valve selection calculation software, OC2017 - HCBBS Forum
77. Selection of weld leg height from branch pipe to main pipe - HCBBS Forum
78. Pneumatic valve for mixing - HCBBS Forum
79. Gate valves can get stuck due to temperature changes - HCBBS Forum
80. Can a tee be welded directly to a PL flange? - HCBBS Forum
81. Is it feasible to bend 304 stainless steel into a π shape on-site? - HCBBS Forum
82. expansion joint - HCBBS Forum
83. Pressure pipeline trench - HCBBS Forum
84. Screw-threaded bronze oxygen stop valve - HCBBS Forum
85. Regarding the issue of cold brittleness of valves at low temperatures? - HCBBS Forum
86. Two-color hollow wall plastic-steel wrapped polyethylene drainage pipe (HWPSP) - HCBBS Forum
87. The heating in my house isn’t working - HCBBS Forum
88. Why should valves be installed with the inlet at a lower level and the outlet at a higher level? - HCBBS Forum
89. Is this a two-stage worm gear? - HCBBS Forum
90. Selection of flue gas duct type - HCBBS Forum
91. What standards of bolts, nuts, and gaskets are suitable for necked butt-weld flanges per ASME B16.5? - HCBBS Forum
92. Issues with air-open and air-close operation of valves at the intermediate heat exchange stage in atmospheric and vacuum distillation - HCBBS Forum
93. Principle and installation of sealing packings - HCBBS Forum
94. Question regarding the welded branch pipe platform - HCBBS Forum
95. Seamless steel pipe model pressure comparison table - HCBBS Forum
96. Forged steel gate valves F11 F22 F304 F316L - HCBBS Forum
97. What are the differences in choosing between raised-face flanges and grooved-face flanges? - HCBBS Forum
98. Pneumatic cut-off ball valve - HCBBS Forum
99. Experience in valve operation - HCBBS Forum
100. Interpretation of the provisions in TSG D2001-2006 - HCBBS Forum