Summary of technical exchanges on three-way connections
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I have studied and compiled the materials related to the Three Connectivities available on the forum (Floor 1 contains information such as book standards related to the Three Connectivities, while Floor 2 features a collection of questions). I hope this can be helpful to those who happen to browse it; thank you! Floor 1: 1–13; Floor 2: 14–82. Weight and volume tables for pipe fittings: elbows, tees, reducers, flanged ends, pipe caps. 2. Drafting calculations (including tees, elliptical heads, square-round joints, etc.). 3. GB3740/3745-2008: Clamp-type elbow joints/clamp-type tee joints. 4. Stress distribution in welded reducing tees. 5. GB/T 5635-2008: Flanged tapered threaded tee joints. 6. CAD symbols for tee and reducing pipe joints. 7. Theoretical weight table for tees (PDF version). 8. Tees – straight and reducing types (TEES). 9. JB/T 1308.19–1999: PN250MPa straight tees and straight four-way joints – specifications and technical requirements. 10. Application of finite element pre- and post-processing methods in the analysis of the hot pressing strength of tees. 11. Finite element analysis of tees. 12. HG/T 2136-1991: Lined glass tees. 13. Drafting calculations (including tees, elliptical heads, square-round joints, etc.)
14 Specification table for tees and elbows 15 Differences between T-type tees and L-type tees 16 Should it be a butt-welded tee or a socket-welded tee? 17 Who can provide samples of 45° angled tees? 18 Layout of tees in two-phase flow pipelines 19 Can equal-diameter tees be connected directly to elbows? 20 Good manufacturers of three-way valves. 21 Where can I find the dimensions of stainless steel three-way valves? 22 Three-way union valves. 23 How do I weld a three-way valve to pipes? Can a 24-way tee be welded directly to a flange or a valve? 25 I’m not sure if such tees exist. 26 What are the characteristics of 2-position tees and 2-position 5-way solenoid valves? 27 How is the resistance of a tee calculated? 28 Table of theoretical weights for steel tees and calculation formulas 29 Tee fittings 30 ASME requirements for extruded tees 31 Issues regarding the notation of tee fittings 32 Information on tees with holes cut out 33 Can high-pressure tees for small pipes at 25 MPa be welded directly together without using tee connectors? 34 Standards for inclined tees 35 Please explain the difference between the check valve at the pump outlet and the two separate check valves 36 Holes cut out and tees 37 How to weld brackets under tees? 38 Questions regarding the use of welded tees 39 Can holes be drilled in a tee to connect temporary pipelines? 40 Request for standard dimensions of all types of pipe fittings (including valves, flanges, tees, elbows, etc.) 41 Manufacturing process for welded tees with DN1600 diameter 42 Can a straight tee be converted into an angled tee? 43 Regarding the \"thermal tee\" 44 Selection of tees 45 Manufacturing standards for 45-degree angled tees 46 Seeking help with the design of cleaning tees for natural gas 47 Principles for selecting jacketed tees? Can pipe fittings such as 48 tees, 49 elbows, tees, and reducers be directly welded to socket weld flanges? 50 Tees. 51 Information regarding tees. 52 Issues related to the welds of tee pipes. 53 What causes cold cracks in welded tees? ? 54 Calculate the equivalent length of valves, elbows, and tees. 55 Issues related to the welding coefficient of tees in stress calculations 56 Can high-pressure tees made of PN32 and PN22 materials be fabricated on-site? 57 Processing techniques for thick-walled copper pipe tees and elbows. 58 **Standards** for steel flanged tees and elbows. 59 Inquiry regarding square reducing tees. 60 Does such a pipe fitting as an angled tee actually exist? Can pipes with diameter 61426 be used to make 356 type tees? In what situations should a hole be drilled, and in what situations should a tee be used? 63 Function and structure of the three-way fitting at the bottom of the pure oxygen converter 64 Manufacturing standards for lateral tees 65 Help! Recommendations for manufacturers of socket weld elbows and tees. Why does the local resistance coefficient of a 66-way union tee take on a negative value? Welding issues related to tees. Can high-pressure tees be welded during on-site construction? Acetylene pipe tees located before the inlet ring compressor. Wear, corrosion, and leakage problems associated with the slag and sludge from acetylene generators in tees. Questions regarding reducer tees? 72 Tees in chemical pipelines and welding 73 Are small-diameter tees reliable? 74 Can two fiberglass tees with a diameter of 100 mm, spaced 2 mm apart, be connected on-site? 75 Standards regarding obliquely connected tees 76 Calculation of pressure drop for tees 77 Issues related to leaks during pressure testing of tees 78 Are there three-dimensional tees among seamless pipe fittings? 79 Manufacturing standards for welded tees 80 The meaning of codes in tee specifications 81 What wall thickness grade should be used for tees with a pressure of 2.5 MPa? 82 Are there standard tees for high-pressure pipes at 40 MPa? Could you provide relevant information?
It’s well organized, which makes things easier for everyone. Great job!
I really appreciate having dedicated people like the forum owner here; it’s very convenient to use and search. Thank you
Great material, thanks to the original poster for sharing it.