English — Forum #92 (Page 39/87)

1. If there is a large difference in diameter between the safety valve and the inlet and outlet pipes, can the diameters of these pipes be changed without replacing the safety valve? - HCBBS Forum
2. The issue of the number of compensators to be installed between two fixed piers - HCBBS Forum
3. Discussion on the Application of One-In, Four-Out, Five-Through Ball Valves - HCBBS Forum
4. Is it okay to enlarge the centrifugal pump’s outlet pipe by three stages? - HCBBS Forum
5. The “virus” in steam applications – VIRUS - HCBBS Forum
6. Dynamic video of the working principle of bellows globe valve - HCBBS Forum
7. Pentane unloading pipeline - HCBBS Forum
8. Frictional loss in pipes. - HCBBS Forum
9. How to describe reduced-bore flanges and specify procurement conditions? - HCBBS Forum
10. Ground level elevation symbol - HCBBS Forum
11. I need help understanding how to determine the deviation amount in the shaded area of the pipeline single-line diagram - HCBBS Forum
12. Unit FCU? - HCBBS Forum
13. How to make a photocatalytic reactor with stirring - HCBBS Forum
14. 5 things to note when installing valves - HCBBS Forum
15. CAD drawings of various valve bodies.DWG - HCBBS Forum
16. How should one choose between normally open pneumatic diaphragm valves and normally closed pneumatic diaphragm valves? - HCBBS Forum
17. How to calculate local losses in drainage inspection wells - HCBBS Forum
18. Common application areas for high-pressure P91 elbows - HCBBS Forum
19. Airtightness Verification Form - HCBBS Forum
20. Help needed, issue with valve spools! - HCBBS Forum
21. The issue of installing compensator elbows one meter higher for pipes outside the boundary. - HCBBS Forum
22. Do 304 and 304L considered nickel-containing low-temperature steels when used in low-temperature environments? - HCBBS Forum
23. Regarding the allowable deviation for pipe fitting wall thickness - HCBBS Forum
24. Standards and specifications for selecting safety valve springs - HCBBS Forum
25. Calculation of bend radius of elbow - HCBBS Forum
26. How is the flange sealing surface type selected? - HCBBS Forum
27. How to calculate the cold field effect of low-temperature pipelines on adjacent pipelines - HCBBS Forum
28. Manhole and connection flange standards - HCBBS Forum
29. Fluid category - HCBBS Forum
30. For oxygen valves at 2.0 MPa, the selection of stainless steel material depends on whether flow rate needs to be considered according to IGC standards - HCBBS Forum
31. Issues regarding the application of asbestos rubber sheets - HCBBS Forum
32. Which qualifications or certificates from valve manufacturers carry high value? - HCBBS Forum
33. Gas and liquid pipeline connection types - HCBBS Forum
34. Valve and instrument issues - HCBBS Forum
35. Today let’s discuss the installation location of check valves - HCBBS Forum
36. Can 16MN galvanized steel pipes transport liquid CO2 at -40°C? - HCBBS Forum
37. Seeking advice on flange material issues - HCBBS Forum
38. What are the differences between Q345D and Q355D steel plates, and what is the price difference? - HCBBS Forum
39. Stainless steel welding - HCBBS Forum
40. Are fully welded valves thrown into water right after welding? - HCBBS Forum
41. Are there any requirements regarding ambient temperature when using pipeline anti-corrosion paint for corrosion protection? - HCBBS Forum
42. Standards for steel flanges? - HCBBS Forum
43. The correct way to open the gearbox of an electric valve in order to deal with oil leakage - HCBBS Forum
44. Introduction to multi-seal composite valves - HCBBS Forum
45. Does the oil system use gaskets? - HCBBS Forum
46. Cost of pressure welding for gas pipelines - HCBBS Forum
47. ASTM B733 – Electroless phosphating of nickel – The upper limit for phosphorus content is - HCBBS Forum
48. May I ask about the protection of flange sealing surfaces? - HCBBS Forum
49. Pipeline cleanliness - HCBBS Forum
50. I heard there is a UV-resistant coating used on fiberglass pipes; is this coating applied later? - HCBBS Forum
51. What do the numbers on this butterfly valve mean? - HCBBS Forum
52. Is the metal wound gasket installed properly? - HCBBS Forum
53. Properties of axial flow check valves - HCBBS Forum
54. Selection of 1500lb natural gas valves - HCBBS Forum
55. What do the symbols on this piping layout diagram mean? - HCBBS Forum
56. Why is the outlet of the safety valve cut to be flat when it faces upward? - HCBBS Forum
57. Need help calculating the resistance in gravity-driven pipelines? - HCBBS Forum
58. Issues regarding the flow coefficient in GB/T17213.1 - HCBBS Forum
59. A Brief Discussion on the Vacuum Filter Dedicated for DS Sulfur Foam (Part 1) - HCBBS Forum
60. Should the pipeline pressure testing filter be removed? - HCBBS Forum
61. What material should be used for pipes containing 42% nitrogen, 29% NO, and 25% NO2? - HCBBS Forum
62. Valves that can be automatically closed in the event of a power outage - HCBBS Forum
63. What does MS1 mean in pipeline 200-cw-10301-MS1? - HCBBS Forum
64. Questions regarding the temperature resistance of PE pipes - HCBBS Forum
65. Urgent help needed with a valve issue - HCBBS Forum
66. Regarding the selection of check valves? --One-way valve for nitrogen inlet of air storage tank - HCBBS Forum
67. Discussion on the issue of measuring wall thickness in pipes? - HCBBS Forum
68. An Analysis of the Causes of Valve Leakage and Preventive Measures - HCBBS Forum
69. Experts, does anyone have the contact information for Shanghai Lianggong Valves? - HCBBS Forum
70. May I ask what kind of valves these are? ? ? - HCBBS Forum
71. Seek a version of JB4730-2005 for non-destructive testing of pressure equipment - HCBBS Forum
72. Ball valves with '→' must be installed in horizontal pipelines - HCBBS Forum
73. How should control valves be maintained? - HCBBS Forum
74. Hand-drawn video explanation: \"Method for calculating the true angle of elbows in orthographic pipe axonometric drawings\" - HCBBS Forum
75. How to carry out quality control during the installation of process pipelines in chemical plants? - HCBBS Forum
76. Types of ASTM A672 welded steel pipes - HCBBS Forum
77. Is the pressure relief valve irreplaceable? - HCBBS Forum
78. 8.2 MPa, steam valve at 350 degrees – what material is suitable for the valve internals, and which standards should be referred to? - HCBBS Forum
79. Bolts are used for the flange - HCBBS Forum
80. The U.S. regulates exports to China: valves, actuators, positioners. - HCBBS Forum
81. How to determine the code for the sealing surface or lining material in valves with a multi-seal structure - HCBBS Forum
82. Question: Selection of pipes and condensers - HCBBS Forum
83. How to determine temperature and pressure values for materials not listed in ASME B16.34 - HCBBS Forum
84. Could you please help me find out what the upside down grooves on this pipe are for? - HCBBS Forum
85. Selection of natural gas pipeline materials - HCBBS Forum
86. Does anyone know what kind of gasket GSWS refers to? - HCBBS Forum
87. Issues with the safety valve discharge piping in large and medium-sized air separation units - HCBBS Forum
88. May I ask whether the small-diameter butt-welded pipe caps (DN15~DN40) (SH3408) are forged or formed by stamping steel plates? - HCBBS Forum
89. Features of the two-way pressure three-eccentric butterfly valve product - HCBBS Forum
90. Looking for a schematic diagram of the self-close valve for liquefied gas cylinders? - HCBBS Forum
91. Atmospheric pressure nitrogen pipeline flow rate - HCBBS Forum
92. Pipe design - HCBBS Forum
93. Question for assistance: Use of PVC-U pipes for transporting gaseous media - HCBBS Forum
94. Has the GC3 pipeline been canceled? - HCBBS Forum
95. Issues regarding the installation of steam tracing pipes - HCBBS Forum
96. What kind of valve is a slide valve? - HCBBS Forum
97. 【Original】Special Applications of Ceramic Valves in Liquid Chlorine Media - HCBBS Forum
98. What material is used for the acetaldehyde medium? - HCBBS Forum
99. Groove treatment in tee joint - HCBBS Forum
100. I recommend to everyone a quick repair subsidy for pipeline leaks – it’s convenient and practical. - HCBBS Forum