English — Forum #92 (Page 22/87)

1. Relationship between water injection volume and water pressure in pipelines - HCBBS Forum
2. What is the difference between a regular ball valve and a vacuum ball valve? - HCBBS Forum
3. Table of inner and outer diameter sizes, wall thickness, and wall thickness grade standards for seamless steel tubes commonly used in the petrochemical industry - HCBBS Forum
4. What is the speed of sound in LNG, liquefied natural gas? - HCBBS Forum
5. The pipeline is subjected to negative pressure - HCBBS Forum
6. Common faults and repair methods of electric soft-sealed butterfly valves - HCBBS Forum
7. Animation of the working principle of a clamp valve - HCBBS Forum
8. Fluorinated acid-base valve - HCBBS Forum
9. Installing the low-temperature control valve requires careful attention - HCBBS Forum
10. Key pressure resistance issues in quick-installation sanitary-grade stainless steel - HCBBS Forum
11. Differences between several types of stainless steel materials for process pipelines - HCBBS Forum
12. How is the sampling valve represented in PID for everyone? - HCBBS Forum
13. Regular inspection cycle for pressure pipelines (industrial/public/long-distance) - HCBBS Forum
14. How to calculate the length of high-pressure flange bolts - HCBBS Forum
15. Imported guide vane adjustment device and inlet control valve used in gas blowers – contact information for manufacturers of these products - HCBBS Forum
16. Is it necessary to ensure proper welding for pipeline valves? - HCBBS Forum
17. Doubts about the raw materials for pipe fittings - HCBBS Forum
18. Issues overlooked during the maintenance of pneumatic valves - HCBBS Forum
19. Nitrogen cylinder storage compartment - HCBBS Forum
20. Is there a drain valve of the Spaisak FT62 model? - HCBBS Forum
21. Pipeline material grade - HCBBS Forum
22. Problem of excessive ellipticity in welded steel pipes - HCBBS Forum
23. What are the design criteria for overhead natural gas pipelines? - HCBBS Forum
24. What are the main considerations or key points when purchasing piping materials for GC2? - HCBBS Forum
25. What do the X1 and X2 grades mean in the non-destructive testing section of ASTM 672–Electrically Fusion-Welded Steel Tubes for Medium Temperature and High Pressure Applications? - HCBBS Forum
26. Which standard should be used to select pipeline materials for PN160 and above - HCBBS Forum
27. Teaching you the preparatory work required before installing pneumatic ball valves - HCBBS Forum
28. Manufacturers of large-diameter DN350/DN300 explosion-proof IIC flame arresters - HCBBS Forum
29. Selection of steam tracing pipes for the DN800 crude oil pipeline - HCBBS Forum
30. Looking for pictures of pipes or valves frozen and cracked - HCBBS Forum
31. Safety valve spring failure - HCBBS Forum
32. Where can big shots buy this type of chain handwheel? - HCBBS Forum
33. I would like to ask the experienced colleagues about valve flow rates - HCBBS Forum
34. I would like to ask the more experienced members about issues related to pipelines and firewalls - HCBBS Forum
35. 20# steel pipe with 16Mn flange - HCBBS Forum
36. Regarding pipeline leakage monitoring in current safety inspections - HCBBS Forum
37. Is there anyone aware of the release status of HGT20580-20585/2020? Only by seeing the draft for approval. When will it be officially implemented? Thank you - HCBBS Forum
38. Why are the bolts on this type of valve long? Can’t they be replaced with shorter bolts on both sides? - HCBBS Forum
39. The newly installed acid gas air cooler suddenly started leaking, but then stopped leaking again - HCBBS Forum
40. YTC product series selection sample - HCBBS Forum
41. Which standard is used for steel pipes in natural gas equipment? - HCBBS Forum
42. Will using a DN50 drain valve for a heat exchanger’s drain pipe with a diameter of DN100 affect the drainage of the pipeline? - HCBBS Forum
43. Animation of the working principle of the Memosilan steam valve - HCBBS Forum
44. What do control valve manufacturers say about the performance of their products? - HCBBS Forum
45. Gentlemen, I’d like to conduct an experiment and have a few questions - HCBBS Forum
46. Problems with the installation of needle valves and condensation coils - HCBBS Forum
47. Which high-risk projects require third-party testing - HCBBS Forum
48. Teaching you how to choose a high-pressure angle-type stop valve correctly - HCBBS Forum
49. The stop valves located at the steam cylinders all follow the direction of the arrows; they do not flow in the opposite direction, as would be the case with high pressure - HCBBS Forum
50. How to issue a warranty certificate for flanges made of steel plates - HCBBS Forum
51. Selection of valve leakage rating - HCBBS Forum
52. A Brief Discussion on Pipe Identification – Fire Protection Pipes - HCBBS Forum
53. Flange verification - HCBBS Forum
54. Valve temperature mixing problem - HCBBS Forum
55. Meaning of the needle valve model number below the pressure gauge - HCBBS Forum
56. How do variable-frequency pumps control pressure and flow rate? - HCBBS Forum
57. New student registration - HCBBS Forum
58. Free distribution of Parts 1 to 5 of the Process Piping Installation Design Manual for Petrochemical Plants - HCBBS Forum
59. Do the lowest-grade 150-pound valves require corresponding TS certification or a production license? - HCBBS Forum
60. Design of pipe rack for 330°C heat transfer oil - HCBBS Forum
61. Piping and pipe materials - HCBBS Forum
62. Internal leakage in the steam stop valve - HCBBS Forum
63. What size steam expander is required for 15 tons of condensate per hour? - HCBBS Forum
64. Reasons for the wear of the trapezoidal thread on the valve stem of a globe valve - HCBBS Forum
65. For valves that come into contact with alkaline media, is fluororubber or PTFE a better choice for sealing? - HCBBS Forum
66. Bolt fracture issue - HCBBS Forum
67. Selection of special valves — safety valves, steam traps, pressure regulators - HCBBS Forum
68. Discussion on the Verification Testing of Carbon Content in Components of Ultra-Low Carbon Stainless Steel Pipes - HCBBS Forum
69. Will directly welding the fixed pipe support to the metal pipe cause damage to the pipe? - HCBBS Forum
70. Regarding who is responsible for preparing the welding procedure qualification and whether substitution is allowed. - HCBBS Forum
71. Particle-resistant adhesive for power plants - HCBBS Forum
72. What happens if the capacity of a steam trap is inappropriate? - HCBBS Forum
73. Construction of insulation coating project package for steam equipment pipelines, kilns, and steam turbines – insulation paint with a temperature retention capacity of 45 degrees Celsius - HCBBS Forum
74. Causes of leakage at valve sealing surfaces and methods to eliminate it - HCBBS Forum
75. seamless steel pipe - HCBBS Forum
76. Safety valve exhaust pipe - HCBBS Forum
77. Regarding multi-ply D-elbows, which standard should be used in the material grade table? - HCBBS Forum
78. Purchase requirements for ceramic wear-resistant elbows - HCBBS Forum
79. How to perform quantitative calculations of the velocities before and after a fluid pipeline? - HCBBS Forum
80. Photos of checking expansion bolt holes with go/no-go gauges - HCBBS Forum
81. Common specifications and models of ceramic composite elbows - HCBBS Forum
82. Pipeline spring support issues - HCBBS Forum
83. What are the requirements for using American standard materials in regulated pressure pipelines? - HCBBS Forum
84. Fuel unloading points at gas stations and high-voltage lines - HCBBS Forum
85. Some questions about butterfly valves - HCBBS Forum
86. What is the diameter? - HCBBS Forum
87. Does anyone know the parameters of PE80 DN63 SDR11 pipes (elastic modulus, Poisson’s ratio, etc.)? - HCBBS Forum
88. Types of discharge ports for vertical flat-bottom storage tanks – Height selection - HCBBS Forum
89. Storage recommendations for metal wound gaskets. - HCBBS Forum
90. Introduction to wear-resistant ceramic elbow linings - HCBBS Forum
91. Chemical pipeline cleaning - HCBBS Forum
92. Differences between pressure relief valves, safety valves, pressure stabilizing valves, and pressure discharge valves - HCBBS Forum
93. Take a look at the position of this valve - HCBBS Forum
94. Common accessories in the selection of pneumatic valves - HCBBS Forum
95. Look at the diagram – it’s a problem with the small bypass of the electric valve! ! ! - HCBBS Forum
96. Regulating valves and safety valves have similarities and differences - HCBBS Forum
97. I would like to ask everyone, what kind of valve is this? - HCBBS Forum
98. Fluorine-lined valve manufacturers tell you how the ball in fluorine-lined ball valves is processed - HCBBS Forum
99. Can the 8163 pipeline be used in any situation other than GC1? - HCBBS Forum
100. Questions regarding the inspection of pipes and pipe fittings - HCBBS Forum