Summary Post on Technical Exchanges Regarding Pipes and Valves (I) – Pipes
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I have compiled all the posts related to pipeline technology in the Pipeline and Valve Technology Exchange Area, so as to make it easier for everyone to search, save time, find what they need, and assist others in solving problems! 1st floor: 1–100 2nd floor: 101–200 3rd floor: 201–300 4th floor: 301–400 5th floor: 401–500 6th floor: 501–600 (Click the title directly to access the hyperlink) 1. Leakage in the valves of the high-pressure water supply pipes 2. Why is the wall thickness of pipes with grade E1E thinner than that of pipes with grade E1D? 3. What are the differences between pressure pipes and stress pipes? 4. I have a question regarding titanium pipes and C276 pipes 5. Can liquefied hydrocarbon pipelines be laid underground? 6. Technical specifications for the design of pressure pipelines GN204-2001. 7. Issues related to pressure pipelines with a diameter smaller than DN25. 8. Layout of drain valves in pipelines. 9. Pipeline design. 10. Seeking advice on the compatibility of pipelines, flanges, gaskets, and bolts. 11. Asking about the lining of flange surfaces in plastic-lined pipelines. 12. Hydrate blockages in natural gas pipelines. 13. Problems related to pressure pipelines. 14. Can galvanized pipes be used for air pipelines operating at 4 MPa? 15. Layout of toxic gas pipelines 16. What standards are used for plastic-lined pipelines used to transport seawater to prevent corrosion? 17. Pipe reducers 18. The “cold bridge” problem in low-temperature pipes 19. Should safety valves and burst discs be separated from the system or integrated into it during pipe pressure testing or airtightness testing? 20. How is the slope achieved during pipeline installation? 21. Industry standards for the construction and installation of oxygen pipelines 22. The relationship between pipelines and pumps 23. Questions about common non-metallic pipelines? 24. Threaded connection dimensions for galvanized pipes 25. How to polish the inner surface of stainless steel pipes? 26. What does “atmospheric leg” refer to in vacuum tubes? 27. Calculation of pipe wall thickness – allowable stress 28. Examination paper for pressure pipeline designers in 2008 29. Are there any reference books on the layout of chemical process pipelines? It mainly focuses on how to draw pipe layout diagrams! 30. Does stainless steel piping polished with EP need to be passivated? 31. Summary table of pressure pipelines in the raw material area. 32. What does the naming of pipeline materials indicate? 33. Shouldn’t supports be used at the bends of insulated pipes? 34. Safe distance between long-distance pipelines and high-voltage power lines 35. Emergency help! Can a PTFE gasket combined with silicone rubber sealing be used for the flanges connecting ammonia pipelines? 36. Basic knowledge of pipes 37. Construction and acceptance specifications for insulation work on industrial equipment and pipes 38. Regarding the reducers at the inlet and outlet of control valves on corrosive pipes 39. Issues related to the flow velocity of fluids in pipes 40. Requirements for pipe treatment 41. Layout of instruments on pipes 42. Problems related to pipe welding 43. How far apart should expansion joints be installed on pipes? 44. Which types of pipes require stress calculations? 45. How to address pipeline vibration? 46. Please help explain the diagram of insulated pipes on the PID. 47. What does the spacing between pipe supports for vertical pipes refer to? 48. Calculation of insulation for pipeline equipment 49. Pipeline design and selection 50. Does anyone know the forces and moments that the joints of butt-welded pipelines can withstand? 51. How should the terms \"toxic\" and \"corrosive\" as applied to pressure pipelines in the Regulations on the Safety Supervision of Special Equipment be understood? 52. What is meant by pressure pipelines in these regulations? 53. Selection of material grades for pipes and fittings under negative pressure conditions. 54. Flow velocity in oxygen pipelines. 55. Questions regarding pipeline balancing? ? ? 56. Pipes, steel materials 57. Contents of design and construction drawings for pressure pipes 58. Flow velocity issues in natural gas pipelines 59. Pipe endoscopy 60. Questions regarding medium and low pressure pipes in power plants 61. Calculations of pipe resistance 62. Why do pipes make noise? 63. Insulation for heavy oil pipelines 64. Selection of pneumatic ball valves for pipelines used for both steam and cold water 65. Information on various essential standards for container and pipeline manufacturing 66. Can pipelines with different wall thicknesses be welded together? Can metric pipes and imperial pipes be welded directly? 67. What standards can plastic-lined pipes of 720*8 meet? 68. Typical Pipeline Design for Thermal Power Generation, Version 2000. 69. When drawing pipeline diagrams using PDMS, is it necessary to draw the device nozzles first? 70. Slope of pipelines 71. On-site records of pipeline pressure testing 72. Which domestic valve brand is relatively better for use in steam pipelines? 73. Design of safety valves on liquefied hydrocarbon pipelines 74. What tasks are required for the reevaluation and renewal of pressure pipeline permits 75. Installation of outdoor gas pipelines 76. Pipe diameter changes 77. Can such pipelines be laid underground? 78. Are there any regulations regarding the spacing between hydrogen chloride pipelines? 79. Question: Should industrial pipes or HVAC exhaust pipes be used? (Those familiar with HVAC systems, please take a look.) 80: The pipeline indicates a problem. 81: (Urgent) Can aluminum components be used in oxygen pipelines? 82. Discuss what the future holds for pipeline design, and what are the most ideal job positions in this field. 83. Issues related to pipeline purging. 84. Request for help – what is the general process for pipeline design? 85. Questions regarding condensate pipes. 86. Pipeline-related problems. 87. What material should be used for wet flue gas pipes containing SO2 at 530°C? 88. The main tasks involved in pipeline design. 89. Whether it belongs to a pressure pipeline. 90. Which types of pipelines can withstand acids and solvents at temperatures around 70 degrees? 91. How should the support systems for non-stress pipelines in the process plant pipe racks be selected? 92. Regarding threaded connections of pipes 93. Back-slope of pipes 94. Regarding pipe markings? 95. Are there any relevant standards for the use of pressure pipelines and 96. chemical glass pipeline fittings? 97. How is the pressure difference in a gas pipeline calculated? 98. Thermal compensation for high-temperature pipelines 99. Can square tubes be used for process pipelines? 100. What type of valves are used for pipes transporting dichloroethane?
Continuing: 101. Can the safety valve vent pipe be used as a non-pressure pipeline? 102. Inspection Regulations for Pressure Piping in Chemical Enterprises 103. Methods for Drawing Pipeline Diagrams 104. CD42A22-84 Specifications for Pipeline Span Design 105. Can files be used to clean the grooves of stainless steel pipelines? 106. Request for the book on buried pipeline inspection written by Yuan Houming. 107. Elimination of thermal stress in pipelines. 108. The impact of classifying benzene pipelines as SHA on petrochemical design. 109. What is suitable for use in nitric acid pipelines? 110. Regarding pipeline support calculations. 111. How to understand the following two pipeline standards. 112. Issues related to pipeline purging. 113. Leakage during pressure testing of fiber rubber sheets on compressed air pipelines? 114. Discussion on pipeline support design (Is a detailed support design unnecessary? ) 115. Flow rate of hydrogen in pipelines 116. Seeking advice on installation issues related to stainless steel pipelines 117. Comparison manual of industrial pipeline standards and regulations at home and abroad 118. Seeking help regarding the grade numbering of pipeline materials 119. Issues concerning the material used for pipelines in sulfur-tolerant conversion units 120. A very simple question: Urgent – In pipeline installation, how should the direction of pressure gauges and valves be determined? 121. How to choose a blind flange for a 6 kg pipeline with a length of 2400 mm? 122. Issues regarding the spacing between buried acetylene pipelines and non-flammable gas pipelines. 123. How to degrease oxygen pipelines? 124. Requirements for caustic soda pipelines and valves. 125. What are the corrosion-resistant pipelines that can withstand vacuum, which are commonly used by people? 126. Questions regarding the selection of pipeline bypass valves! ! 127. Types of compressed air pipelines. 128. Fan pipelines. 129. Can asbestos gaskets be used for steam pipeline flanges? 130. What should be considered in the pipeline design of tank farms? 131. Can other gases be used as a shielding gas instead of argon when welding stainless steel pipes? 132. What material should be used for pipes to transport chlorine gas? 133. Issues related to pipeline material statistics 134. (Repost) Pipeline experts 135. Pipeline layout 136. Pipeline naming table format 137. Pipeline empty view 138. Pipeline connections! 139. Issues related to the submission of applications for pressure pipelines 140. Non-destructive testing in pipeline construction 141. What does the pipeline code H203a-100-R1E-P mean? 142. Issues regarding the selection of ring-type hangers for pipe supports. 143. Under what conditions do pipes require heat treatment after welding? 144. What type of valve is best for use on pipes that carry slurry and at certain temperatures? 145. Non-destructive testing of pipes during shutdown for maintenance. 146. What materials should be used for pipes and fittings when dealing with 37% concentrated hydrochloric acid? 147. What does the top view of a pneumatic diaphragm pump look like when drawing a pipe layout diagram? 148. Mine pipelines 149. Why do the valves on pipelines need to have different diameters? 150. Selection of pipes and fittings for low-flow applications 151. What determines the distance between fixing brackets for pipes of different sizes? 152. Problems related to pipeline vibration 153. How to select flanges for pipelines carrying wastewater with high mineralization levels? 154. Thermal compensation issues for pipelines carrying media at room temperature during steam purging. 155. How to use pipeline pressure drop calculation software? 156. Insulation issues for pipes with heat tracing tubes. 157. Problems with non-metallic pipes. 158. Does anyone know anything about plug valves used in pipes and tank bottoms? 159. Please share the CAD version of the axonometric diagram of pipes! 160. Regarding the debris screen in front of the pipeline. 161. Issues related to the drawing of pipeline layouts in single-line form. 162. Can the gas pipelines used in coking plants be insulated? 163. Pressure pipelines. 164. Please provide guidance on pipeline support design. 165. Concerning temperature control during the welding of stainless steel pipelines. 166. What does the standard P1.6C12SO for medium and low pressure pipelines in power plants mean? 167. Types of gaskets and applicable pipelines 168. How to perform pressure testing and purging on X70 pipelines with a diameter of 1200? 169. Vent valves for acetylene and oxygen pipelines in the workshop. 170. Is it suitable to use flanges for pipelines that are frequently pickled? 171. (In-depth discussion of details) What connection method is more suitable for small-diameter pipes? 172. Are there any specialized books that explain the installation diagrams for buried pipes in power plants? 173. Can GB 8163 be used in steam network pipes operating at 1.2 MPA and 310 degrees? 174. What are the requirements regarding warranty certificates for carbon steel pipes, fittings, and flanges according to American standards? 175. The 10 Essential Guidelines for Pipeline Design 176. What is the maximum temperature that pipes made of 15CrMo can withstand when exposed to dry heating? 177. Urgently needed: pipeline wall thickness reference table. 178. How to conduct vibration analysis of pipelines? 179. How to select pipe elbows for ammonia refrigeration? 180. Pipe wall thickness (imperial units) 181. Issue regarding pipe material identification 182. What is the quotation for lined pipes? 183. Selection of non-destructive testing methods for the manufacturing of pressure vessels and pressure pipelines 184. How many types of pipeline insulation exist? 185. Wall thicknesses for Series A pipelines 186. Pressure pipelines 187. Pipeline welding 188. New additions to the design manual for pipe supports and hangers 189. Threaded connections for high-temperature pipelines 190. Is insulation necessary for outdoor fire foam pipelines? 191. Question: Pipeline grounding design 192. The problem of rapid leakage when a DN350 electric butterfly valve is used in air pipelines at 50°C 193. Types and applications of pipeline compensators? 194. Who calculates pipe stresses manually? 195. Regarding the assessment of practical skills for pressure pipes. 196. Questions about the qualification certificates required for pipeline installation project managers. 197. Pipe materials. 198. Issues related to pipe welding. 199. Standards for pipe valves and sight glasses; if anyone knows this, please let me know. Waiting online. 200. If there are no pressure pipes in a project, can the piping diagram (pipe layout diagram) be omitted?
Continuing: 201. Thanks to w0117c for providing me with the information on pipeline equipment standards. 202. GB standards for pipeline equipment. 203. Issues related to the training and assessment of personnel responsible for the design approval of pressure pipelines. 204. Key points regarding the installation of safety valves and their pipeline layout design. 205. Manual for the installation design of oil pipelines. 206. Are there any specifications regarding the height of welds at pipeline welding joints? 207. Is the cold brittleness temperature of GB carbon steel pipes -20 degrees Celsius? 208. ASME Class 2 pipes 209. Stress calculation for chlorine pipes 210. How to calculate the resistance of vacuum pipes? 211. Pipeline classification levels! 212. Low-temperature pipes and valves 213. Expansion coefficient of fiberglass-reinforced plastic pipes 214. For pneumatic ash removal pipes, what materials are generally chosen? 215. What is a hydrogen service pipeline? 216. Seek information on the production process of fiberglass-reinforced plastic pipes and related winding machines. 217. What are the special design specifications for pipes that use gas as a power source to transport powders? 218. Does anyone have on-site photos of the three-valve assembly for pipelines in the process flow? 219. Valves for solid pipelines 220. English templates for online inspection and comprehensive inspection of industrial pipelines 221. What does \"pipe bag shape\" mean? 222. Problems with valves in water for injection pipelines? 223. Where can I find the English version of the \"Regulations for Periodic Inspection of Industrial Pipelines in Use\"? 224. What is the difference between pipe span and pipe spacing? 225. What are the slopes for chlorine gas pipelines and liquid chlorine pipelines respectively? 226. I would like to ask everyone: how can process pipelines be distinguished from system pipelines? Thank you. 227. Northwest Institute’s \"Design Manual for Typical Components of Steam and Water Pipelines in Thermal Power Plants\" 228. Can high-pressure steam pipelines be made from seamless steel pipes of grade 20 as specified in GB8163? 229. Question: What does the pipeline code mean? 230. Why is it necessary to degrease oxygen pipelines? 231. How should supports and hangers be selected for large-diameter pipelines? 232. Questions regarding the selection of valves or pipelines. 233. Can anyone help me provide a pressure testing plan for natural gas pipelines? 234. Pipeline support. 235. Pipeline design. 236. How can noise generated by fluid flow in pipelines and valves be reduced? 237. May I ask who has information on polypropylene pipeline systems for hot and cold water in accordance with the GB/T18742-2002 standard?
238. Who has English-language materials on pressure pipelines?
239. What type of pipeline material should be used for steam at 450 degrees and 4.0 Mpa?
240. What issues should be considered when designing pipelines with gas-liquid two-phase flow? 241. Classification of low-pressure, medium-pressure, and high-pressure pipelines 242. English codes for pipeline materials 243. Welding of pipelines with different wall thicknesses 244. Pipeline wall thickness, outer diameter, and corresponding standards 245. What are the key points in the design of top pipes in towers? 246. What is the method to prevent material accumulation in Pdms pipes? 247. Consultation on HDPE lining for long-distance slurry pipeline transportation. 248. How should anti-corrosion treatment be applied to the pipes in compressed air purification equipment? 249. GB/T 20801-2006 {{Code for Pressure Piping – Industrial Piping}} General Provisions 250. PVC pipe supports 251. Pipe materials of category GC1 252. Pipe grades indicated by B1F01 and B4M50 253. Standards related to pressure testing of fiberglass-reinforced plastic pipes 254. Calculation of the expansion amount of industrial pipes? 255. Questions regarding the safe distance between long-distance pipelines and reservoirs. 256. What type of pipelines are required for high-pressure systems? Thank you! 257. Pipe length in piping diagrams 258. Calculation of thermal stress in insulated pipes 259. How to define corrosive substances in the definition of pressure pipes, and where does this definition come from? 260. Regarding oxygen pipelines 261. Fixing of heat-traced pipes 262. What are the hardness requirements for stainless steel bolts and nuts used in pipe fastenings? 263. Issues related to the materials used for liquid chlorine pipelines 264. What kind of gaskets are generally used in sulfuric acid process pipelines? 265. Appreciation of pipeline construction photos 266. Selection of valves for hydrogen fluoride pipelines 267. How to calculate the flow rate within a pipeline 268. Pipeline diameter 269. Welding issues related to pipelines made of 16MnR material 270. Questions regarding the standards for sanitary-grade pipelines 271. What is the appropriate spacing when installing two orifice flow meters on the same steam pipeline? 272. Pipeline welding 273. Steam inlet pipelines for drying cylinders 274. Matters related to steam pipelines 275. Pipeline rain caps 276. Issues related to the use of insulation materials at pipeline corners 277. Welding methods and acceptance criteria for industrial plastic pipeline valves (prize available) 278. Pipeline cleaning 279. What are the standards for wave-shaped gaskets used in pipelines? 280. How to relieve stress using pipe elbows? 281. Manual for the calculation and design of pipe supports. 282. Can the weld qualification procedures for pipes made of the materials L415 and L360 be based on those used for 16Mn steel pipes? 283. How to connect PVC pipes with stainless steel pipes? 284. Can’t thermal expansion safety valves on liquid pipelines use a 1/2\" diameter? 285. How to weld a metal base to a plastic pipe? 286、Steam pipeline venting to atmosphere 287、Data on high-pressure steam pipelines? 288. Issues related to the materials used for valves in pipelines carrying concentrated hydrochloric acid. 289. Information on pressure-resistant polytetrafluoroethylene pipelines. 290. Problems related to pipeline engineering. 291. What are the standards applicable to fluorinated (polytetrafluoroethylene) pipelines? 292. Tables of process pipeline characteristics and specifications for process pipelines 293. Basic theories of pipeline stress analysis 294. Materials for pressure pipelines – Codes for pipeline construction and acceptance 295. Does anyone have information on lined pipelines? 296. What material can be used for pipeline sight glasses to ensure corrosion resistance? 297. Material of pipes for extracting the organic phase 298. Information on KKS codes for power plant pipes 299. Vocabulary related to piping 300. Selection of pipe supports
238. Who has English-language materials on pressure pipelines?
239. What type of pipeline material should be used for steam at 450 degrees and 4.0 Mpa?
240. What issues should be considered when designing pipelines with gas-liquid two-phase flow? 241. Classification of low-pressure, medium-pressure, and high-pressure pipelines 242. English codes for pipeline materials 243. Welding of pipelines with different wall thicknesses 244. Pipeline wall thickness, outer diameter, and corresponding standards 245. What are the key points in the design of top pipes in towers? 246. What is the method to prevent material accumulation in Pdms pipes? 247. Consultation on HDPE lining for long-distance slurry pipeline transportation. 248. How should anti-corrosion treatment be applied to the pipes in compressed air purification equipment? 249. GB/T 20801-2006 {{Code for Pressure Piping – Industrial Piping}} General Provisions 250. PVC pipe supports 251. Pipe materials of category GC1 252. Pipe grades indicated by B1F01 and B4M50 253. Standards related to pressure testing of fiberglass-reinforced plastic pipes 254. Calculation of the expansion amount of industrial pipes? 255. Questions regarding the safe distance between long-distance pipelines and reservoirs. 256. What type of pipelines are required for high-pressure systems? Thank you! 257. Pipe length in piping diagrams 258. Calculation of thermal stress in insulated pipes 259. How to define corrosive substances in the definition of pressure pipes, and where does this definition come from? 260. Regarding oxygen pipelines 261. Fixing of heat-traced pipes 262. What are the hardness requirements for stainless steel bolts and nuts used in pipe fastenings? 263. Issues related to the materials used for liquid chlorine pipelines 264. What kind of gaskets are generally used in sulfuric acid process pipelines? 265. Appreciation of pipeline construction photos 266. Selection of valves for hydrogen fluoride pipelines 267. How to calculate the flow rate within a pipeline 268. Pipeline diameter 269. Welding issues related to pipelines made of 16MnR material 270. Questions regarding the standards for sanitary-grade pipelines 271. What is the appropriate spacing when installing two orifice flow meters on the same steam pipeline? 272. Pipeline welding 273. Steam inlet pipelines for drying cylinders 274. Matters related to steam pipelines 275. Pipeline rain caps 276. Issues related to the use of insulation materials at pipeline corners 277. Welding methods and acceptance criteria for industrial plastic pipeline valves (prize available) 278. Pipeline cleaning 279. What are the standards for wave-shaped gaskets used in pipelines? 280. How to relieve stress using pipe elbows? 281. Manual for the calculation and design of pipe supports. 282. Can the weld qualification procedures for pipes made of the materials L415 and L360 be based on those used for 16Mn steel pipes? 283. How to connect PVC pipes with stainless steel pipes? 284. Can’t thermal expansion safety valves on liquid pipelines use a 1/2\" diameter? 285. How to weld a metal base to a plastic pipe? 286、Steam pipeline venting to atmosphere 287、Data on high-pressure steam pipelines? 288. Issues related to the materials used for valves in pipelines carrying concentrated hydrochloric acid. 289. Information on pressure-resistant polytetrafluoroethylene pipelines. 290. Problems related to pipeline engineering. 291. What are the standards applicable to fluorinated (polytetrafluoroethylene) pipelines? 292. Tables of process pipeline characteristics and specifications for process pipelines 293. Basic theories of pipeline stress analysis 294. Materials for pressure pipelines – Codes for pipeline construction and acceptance 295. Does anyone have information on lined pipelines? 296. What material can be used for pipeline sight glasses to ensure corrosion resistance? 297. Material of pipes for extracting the organic phase 298. Information on KKS codes for power plant pipes 299. Vocabulary related to piping 300. Selection of pipe supports
Continuing: 401. Where can I find a summary of experience regarding the materials used in pipeline material grade tables? 402. Pressure testing when there is a check valve in the pipeline. 403. Why is the grade of pipe fittings generally higher than that of the pipeline itself? 404. Pipeline bridging. 405. Does it have to be the meteorological bureau that handles the static electricity grounding of equipment and pipelines? 406. Classification of oil transmission pipelines. 407. Can 5% liquid caustic soda pipelines be considered pressure pipelines? 408. Which company in China produces the best pipeline heat tracing systems? 409. Inquiry regarding the free-fall conveying method of materials in pipelines. 410. Issues related to 3D pipeline models. 411. Can the flanges built into glass-lined pipes be designed with convex or recessed surfaces, or with tenon-and-socket designs? 412. Pipeline exhaust. 413. Installation of safety valves on pressure pipelines. 414. How do people start learning about pipelines? 415. Selection of valve and pipeline materials. 416. Comprehensive inspection and testing techniques for buried gas pipelines. 417. Non-destructive testing of pressure pipelines. 418. How to calculate the pressure drop in air-pressure pipelines. 419. Design calculation documents for fiberglass-reinforced plastic pipelines. 420. Issues related to pipeline color coding. 421. Problems with pipeline dampers. 422. What knowledge or qualifications should a pipeline materials engineer possess? 423. Selection of semi-water gas pipelines. 424. Several images of cracked pipelines; what are the causes of these cracks? 425. What pipe material should be used for transporting chlorine? 426. The economic flow velocity of fluids in process pipes. 427. What pipe material should be used for transporting silicon powder? 428. After a long period of shutdown, many welds in the pipes leak when the steam system is restarted. 429. How are the depth definitions for pipe layout diagrams classified? 430. Who has the questions for pressure pipeline inspector exams? 431. Regulations on the safety management and supervision of pressure pipelines 432. What kind of gaskets are generally used for oxygen pipelines? 433. Does that person have an electronic version of the latest training materials for national pressure pipeline design reviewers? 434. Pipe elbows. 435. How to understand clause 6.3.14 in GB/T 20801.2–2006, the standard for pressure pipelines – Part 2: Materials. 436. Pipeline-related issues. 437. Requirements regarding the spacing between buried pipelines. 438. How are pipeline grades classified? 439. Can high-pressure small pipelines at 25 MPa be welded directly at the tee connection points (without using tee fittings)? 440. Safety management systems for pressure pipelines. 441. Categories and grades of pressure pipelines. 442. Help needed regarding the pressure resistance of 301 stainless steel pipes. 443. How to quickly understand pipeline stress analysis in chemical engineering? 444. Bubbling in PTFE pipes 445. How is the wall thickness of pipes determined? 446. Do measures taken to tighten pipes reduce thermal expansion? 447. Standards for pipe construction and acceptance 448. Selecting pipe materials based on the medium inside the pipes 449. Electronic versions of handbooks on chemical process pipelines and design 450. Welding techniques for natural gas pipelines 451. Technologies, installation, and applications of fiberglass-reinforced plastic pipes 452. Standards for the construction and acceptance of fiberglass-reinforced plastic pipes 453. Are there companies specialized in pipe materials? 454. Procedures for the maintenance and repair of pipe valves 455. What are the differences between ball valves and gate valves in pipeline applications? 456. Welding of pressure pipelines 457. Is there a 2008 version of the codes for industrial pipeline design? 458. Pipe elbows. 459. Experienced experts, which type of check valve is suitable for use on vertical pipes? 460. Coating applications for equipment and pipes to prevent corrosion. 461. How to create drawings for the re-inspection of pipes. 462. What material should be used for the sealing surfaces of valves in pipes carrying phenol, aniline, etc.? 463. Questions regarding pipe wall thickness. 464. Seeking advice on the installation of primary instruments in process pipes. 465. Calculations for pipe insulation. 466. For a DN1000 overhead pipe with a 5-degree horizontal bend, should it be installed using elastic fitting or by cutting an elbow on-site? Thank you. 467. Design requirements for pipe slope 468. Can cast iron pipe flanges be used after they crack? 469. What does the pipe color correspond to regarding the medium? 470. Corrosion protection of pipelines 471. Pipeline stress analysis 472. What is the best approach for pipeline design at present? 473. Selection of pipeline materials 474. Notification for the installation of pressure pipelines 475. How are process pipeline grades classified? 476. Question regarding the flow rate at a steam pipe outlet. 477. Comparison between PP-R water supply pipes and PE pipes. 478. Stainless steel pipes and carbon steel pipes should not come into direct contact! 479. What type of pipeline should be used to transport concentrated sulfuric acid? 480. Must compressed air pipelines be made of seamless steel pipes? 481. Can pressure-free transmission pipelines use welded steel pipes? 482. What is the impact of using improper washers on the fastening bolts at acid pipeline joints? 483. Recent design challenges 5---Who can share some?! Requirements for three-phase flow pipelines ； Requirements for liquid oil sludge pipelines ； 484. Pipe automatic air flame arrester (ZHQ-R type) 485. Requirements for the construction of pressure pipes 486. Is it possible to use AIP for pipes? 487. Calculation of pipe stress 488. Calculation of the amount of paint required for pipes 489. Design of drain pipes 490. GB/T20801-2006 Code for pressure pipes – Industrial pipes, and GB 50316 491. What valves should be used for water pipes? 492. What kind of purging is done after the pipeline installation is completed? 493. What issues should be considered in pipeline fabrication? 494. Pipe supports for high-pressure steam pipelines. 495. The strange phenomenon of valve leakage during pipeline pressure testing? 496. Types and characteristics of pipeline materials 497. 100 questions on the installation of petrochemical pipelines 498. Regarding the burial of pipelines 499. Can metal-wound gaskets be used for acetic acid pipelines? 1420500: The issue of selecting the appropriate pipe material based on the medium flowing in the pipeline
Continuing: 501. What is the material of the pipeline? ? ? 502. Unfolding of reinforcement plates for pipe openings 503. What about negative-pressure pipes? 504. Design issues related to high-temperature pipes 505. How to determine the pressure of pipes 506. Principles for selecting aluminum pipes and stainless steel pipes in low-temperature applications 507. Knowledge about pipe flanges 508. Looking for a handbook on chemical process pipes 509. How are steel-lined pipes connected to each other in power plant pipelines? 510, 1.7mpa, steam pipeline at 274 degrees? ? ? ? 511. What are the causes of pipe ruptures and explosions? 512. Pressure pipeline reviewer 513. Grade of stainless steel pipes for ventilation and dust removal 514. What is the purpose of installing a pipe support on a pipeline and then adding a plug? 515. Explanation regarding PDMS pipe grades 516. Pipe stress 517. Is there specialized software for designing heating pipes? 518. Protection of pipe ends in chemical process pipelines 519. Can the gas pipelines in a chemistry laboratory be considered industrial pipelines? 520. 800 Questions on Plumbering Operation Techniques 521. Seeking information on valves for hydrogen pipelines 522. Questions regarding the price of pipes 523. Which software is easiest to learn for pipeline work? 524. Pipeline insulation calculation – minimum insulation thickness 525. For methanol pipelines, what material should be used for the lining in anti-corrosion pipes? 526. How are pressure pipelines classified? What are the pipeline grade codes? 527. What exactly is the material of soft steel used in some pipelines? 528. What do the pipe grades denoted by P1E, P2E, and N1E mean? What standard governs this naming convention? 529. How are the pipes at the vent points in a power plant’s pipelines generally connected to the main pipelines? 530. I would like to ask: what are the standards applicable to pipeline materials and related knowledge? 531. What standards are used in the petrochemical industry for pipeline materials? 532: If sand eyes appear in the pipeline, is it necessary to conduct pressure testing again after welding repairs? 533. Summary of HaiChuan’s questions and information regarding pipelines. 534. Procedures for the approval of completion inspection after the installation of pressure vessels and pressure pipelines. 535. Summary of various types and specifications of metal pipes used in China (please add your contributions). 536. Principles for pipeline prefabrication. 537. How is steam tracing applied to pipelines? 538. Issues related to the span of pipe supports for glass-lined steel pipes 539. Silane delivery pipelines 540. Certification for the design of GC2 pressure pipelines 541. Regulations on the protection of oil and gas pipelines 542. Problem of liquid accumulation in dry gas transmission pipelines 543. Software and books commonly used for designing large steam pipelines 544. Seeking advice on issues related to high-temperature waste hydrochloric acid delivery pipelines and fittings 545. Why do pipes crack as soon as they are welded? 546. Finding the optimal combination of pipes and flow rates. 547. Explanation of pipe material specifications. 548. Issues related to process pipes. 549. Selection of pipe supports for pumps. 550. Calculation of pipe resistance. 551. Seeking advice: The general range of the proportion of fittings in the total cost of pipes. 552. Issues related to pipeline grades 553. What factors should be considered when configuring the inlet and outlet pipelines for centrifugal pumps? 554. Gaskets for low-temperature pipelines. 555. Where are PTFE-lined pipelines mainly used? 556. The latest categories and grades for pressure pipelines. 557. Layout of pipelines carrying toxic media. 558. Calculation of the size of steam pipelines. 559. Are there any updated standards for pipeline welding? 560. How should insulation nails be designed for high-temperature pipelines? 561. Solutions to sealing-related problems in pipelines and valves. 562. What kind of valves are generally used at the inlet of air pipelines? 563. Let’s take a look at what the symbols in Japan’s pipeline grade table mean 564. Design of high-pressure gas pipelines? 565. On pressure pipelines 566. Discussion on the purging methods for gas pipelines 567. 19 questions and answers regarding knowledge of pressure pipelines 568. Question: Are valves needed before and after a pipeline sight glass? 569. Gas pipeline manufacturing enterprises 570. Issues related to pipeline pressure 571. Pressure testing of high-pressure pipelines 572. What are good ways to detect internal leakage in valves during pipeline pressure testing? 573. Seek basic information on pipes. 574. Explanation of common pipe foundations. 575. What is the sequence for pipe heat treatment and radiography? 576. A question regarding the calculation of pipeline thrust. 577. Common English abbreviations for pipelines. 578. Methods for fixed supports on steam pipelines with high thrust. 579. Template for a request form for post-weld heat treatment of pipelines. 580. Seeking a manual for the installation of pressure pipelines. 581. How to determine the amount of insulation material needed for pipelines. 582. Valves for water and steam pipelines. 583. Should longer pipelines be purged in segments when using steam for purification? 584. What is the best software for pipeline design? 585. What is the design pressure of the pipeline: 0.55 / FV? 586. Generally, what does it include when we talk about pipe fittings? 587. When designing pipe layouts, valves need to be taken into consideration. 588. Does anyone have any standards related to SMS pipe fittings? 589. What are the specifications and standards for pressure testing pipelines? 590. Problems with pipe supports 591. How do factories produce pipes? 592. What does a chemical engineering designer need to know about pipe fittings? 593. Completely new wear-resistant and corrosion-resistant pipes – wear-resistant enamel. 594. Will cracks occur when welding carbon steel pipes and stainless steel pipes? 595. Technical specifications for stress calculation of steam and water pipes in thermal power plants.doc 596. Calculation of external pressure on chemical process pipes. 597. Common flow velocities used in pipe calculations. 598. Software for drawing pipe diagrams. 599. Pressure pipes. 600. Technical specifications for pressure pipes
Quite good resources, thanks for sharing! ! :handshake
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