Summary of technical exchanges on elbows

32 What is the approximate cost of manufacturing a 90-degree elbow made from dried shrimps? 33 How to determine the radius of curvature for elbows and bends in the statistics of pipeline materials in station valve rooms? 34 Under what circumstances can 1.0DN elbows be used? 35 Are there any standards for 150-degree elbows? 36 Information regarding elbow fittings that allow for bends. 37 How can one draw 3D elbows or valves quickly using CAD 2007? 38 The elbow at the outlet pipe of the acetylene water ring pump is damaged. 39 Manufacturing processes for pressed elbows and bent elbows. 40 Can elbows be welded directly onto pressure vessels? 41 Seeking advice humbly: The formal definition of elbows. 42 Can elbow fittings only be used at atmospheric pressure? What is the basis for this? 43 How is the weight of elbow fittings calculated? 44 How are elbows indicated in material lists? 45 Raw materials for elbows. 46 The difference between elbows and bends. 47 Is it compliant with standards to weld elbows directly to flanges? 48 Issues with connecting elbows to flanges 49 Selection of elbows 50 Problems related to elbow models 51 Issues concerning elbow models 52 Problems with elbows 53 Can holes be made in elbows? 54 Calculation of elbow area 55 Elbows can be connected 56 Can elbows be welded directly to flanges? What to do if the distance for the 57 elbow is insufficient? 58 How to determine the wall thickness for elbows or bends? 59 How to consider the variations in inner and outer wall thicknesses when selecting the wall thickness for elbows or bends? 60 How to consider the variations in inner and outer wall thicknesses when selecting the wall thickness for elbows or bends? 61 Determining the calculated wall thickness for elbows and bends. 62 Can elbows and tees be welded directly together? 63 Elbow fractures. 64 The pressure ratings of elbows and other pipe fittings. 65 Issues related to the manufacturing of elbows. 66 Calculating the external pressure on elbows. 67 What aspects are related to elbows? 68 How should the thickness of elbows be specified? 69 The thickness of elbows 70 What does an elbow mean? 71 How to calculate the vertical height of an elbow? 72 Calculation of the wall thickness of elbows 73 Methods of indicating the size of elbows 74 Standard numbers for elbows 75 Is the wall thickness of an elbow the same as that of the pipeline it is connected to? 76 Issue of elbow wall thickness 77 What radius is suitable for elbows? 78 Can pipe fittings such as elbows, tees, and reducers be welded directly to socket weld flanges? 79 Elbows: Can two 90-degree elbows replace an 180-degree elbow? Calculation of 80 external pressure elbows?

81: Can a φ6 hole be drilled in a 90-degree elbow of a natural gas pipeline? 82: Does anyone know the specifications and models for such 90-degree elbows? 83 Who knows about 90-degree long-radius elbows? 84 Does anyone have a chart showing the nominal diameter versus outer diameter of elbows? 85: Who has the standards for 90° elbows, 02s403-686? How to prevent wear on elbows used in ash transfer pipelines? 87: Selection of elbows for ash transfer pipelines. 88: When to use 1D elbows and 1.5D elbows? 89: When should elbow bends of a certain type be used? 90 Specifications and parameters table for tees and elbows 91 How to relieve stress using pipe elbows? 92 How to draw elbows more quickly and effectively? 93 Seeking help: Manufacturers of 1000A elbows and tees. 94 Seeking advice: What to do if the inner walls of the pipes and elbows are not aligned, with a large misalignment? 95 Help: The inner walls of the pipes and elbows are not aligned; what should I do if the misalignment is significant? 96. Method for drawing shrimp-shaped elbows (tapered elbows). 97. Method for drawing shrimp-shaped elbows (tapered elbows). 98. Does anyone have the standards for manufacturing shrimp-shaped elbows? 99. Which standard specifies the usage conditions for shrimp-shaped elbows? 100. What is the method for manufacturing elbows with black-jacketed polyurethane foam insulation? 101. Are there **standards** for single-elbow and double-elbow fittings? 102. Question regarding the material used for extruded elbows. 103. Question: Should corners be rounded on elbow fittings in pipe layout diagrams? 104 Could the seniors give some advice? When installing pipes, can mounds be used at the elbows? 105 How should one choose between long-radius and short-radius elbows when piping? When piping 106, what does FOT mean for reducer elbows? 107 Problems with PTFE-lined elbows. 108 Does anyone have pictures of elbow bends or can someone explain them? 109 Where can I find loading programs for drawing valves, flanges, tees, and elbows? 110 Corrosion of elbow bends in the convection section of furnaces. 111 Elbow bends with sharp turns in furnace tubes. 112 Welding two elbow bends together. 113 Can two elbow bends be welded directly to each other? 114 What is the minimum distance between two 45° elbow bends? ? How far down the outlet pipeline of a 115 centrifugal pump can a elbow be installed? 116 Analysis of the cause of failure of the elbow at the outlet of unit E-103 in the paraffin oil hydrogenation plant.rar 117 Corrosion issues with air-cooled elbows 118 Urgent request: Can spiral-welded pipes be used to make elbow fittings? 119 It is recommended that people upload the drawings of valves, reducers, elbows, etc., which are marked according to their dimensions in regular piping work. 120 What is the impact of welding when there is a large difference in thickness between the radiant furnace tubes and elbows in a pressure-reduction furnace? 121 Elbows at the outlet of methanol synthesis towers. 122 Calculating the equivalent length of valves, elbows, and tees. 123 Processing techniques for thick-walled copper pipes, tees, and elbows. 124 Which Autocad plugins are best for drawing pipe fittings (pipes, elbows, flanges, etc.)? 125 Material used for elbows in boiler desulfurization. 126 Large elbows with many different specifications cannot be bent. 127 How to weld when the thickness of pipes and elbows differs. 128 Pipe elbows. 129 Calculating the cutting requirements for elbows during pipeline construction. 130 Information on selecting elbows. 131 Information regarding the strength of elbows

132 On the classification of elbows 133 On the installation of elbows 134 On the calculation of elbows 135 Questions regarding elbow codes 136 The standard number for DN600 elbow fittings 137 How to draw the elevation view of a 30-degree elbow 138 Calculation of the resistance caused by elbows in process pipelines 139 The bending radius of elbows used for expansion joints in high-temperature steam pipelines 140 What type of elbow should be used for high-temperature applications with small pipe diameters 141 The standards for steel flanged tees and elbows 142 How to calculate the thermal expansion moment of steel pipe elbows and the moment of inertia of their cross-sections? 143 Which material is better for wear-resistant elbows used in coal powder conveying pipelines? 144 What is the process of on-site fabrication of non-90° elbows? {Please discuss actively} 145 Issues related to flanged elbows 146 Can valve flanges be connected directly to elbows? Can a 147 valve flange be connected directly to an elbow? 148 For steam condensate pipe elbows subjected to severe erosion, can the use of stainless steel enhance their resistance to erosion? 149 What are butt-welded and socket-welded elbows used for? 150 What is the purpose of short elbows? 151 Can equal-diameter tees be connected directly to elbows? Can a 152 necked flat welding flange be connected directly to elbows and tees? 153 Elbows with inspection ports 154 Bend radius of large-diameter welded pipe elbows 155 How to manufacture and distinguish between elbows with large radii and bent pipes 156 Erosion leakage at elbows in catalyst tank unloading pipelines 157 Production processes for stamped elbows and bent pipes 158 Weights of commonly used elbows 159 Use of elbows and bent pipes in long-distance pipelines 160 Large-radius elbows for long-distance pipelines 161 What radius should be used for elbows in long-distance pipelines? 162 Issues related to the installation of expansion elbows in long-distance pipelines 163 Differences between long-neck elbows and short-diameter elbows 164 Differences between long-neck elbows and short-diameter elbows 165 Differences between elbows with large radii and those with small radii 166 How to choose between elbows with large radii and those with small radii? 167 Elbows with large radii 168 Tangent length of elbows after cutting 169 How to draw standard 90-degree double-line elbows and determine the radius? 170 Should supports not be used at the bends of insulated pipes? 171 Help! Could you recommend manufacturers of socket-welded elbows and tees? What are the options for selecting pipes elbows for 172 ammonia refrigeration systems? Can 173SLIP ON flanges be connected directly to pipe fittings such as elbows or tees? How to align two 30° elbows in 174PDMS? Can elbows for 175L290 pipes be made of 20# steel? 176 Is it permissible to weld 26‑67 arc elbows with other pipe fittings? 177 For an DN1000 overhead pipeline with a 5-degree horizontal bend, should it be installed using elastic laying or by cutting elbows on site? Thank you. What is the use of the prosthetic leg at the elbow in 178CAESERII? How to define it? 179 How to set the SIF value for elbows made by Caesar II. 180 Lisp programs for drawing elbows in CAD. 181 How to draw welded elbows in Cadworx? 182 Using plate rolling to create elbows with a 90-degree angle. 183 What does a 6D elbow mean? 184 If two 45-degree elbows are combined together, does that result in an 90-degree elbow? What are the differences in the use of 1851D 1.5D elbows? What are the local resistance coefficients for 1861 20-degree and 135-degree elbows? 1871.5 times D elbow