How to draw 2:1 Elliptical Head - Boiler and Pressure Vessel
May 1, 2011 · Whether the thickness calculates the same applying the torospherical equation to the approximated elliptical head is a moot point. A similar discrepancy occurs when applying flange rating equations to 150# flanges, I believe. TGS4, I think a major consideration would be to check how head producers actually produce heads.
Calculation of Head Weights 10 - Eng-Tips
Oct 9, 2001 · With a little manipulation, the volume of 2:1 elliptical head is nearly as easy to calculate (with a 2 inch straight flange). I am almost positive the equations I am using to calculate the 2:1 and hemi head weight are correct, but the weights don't …
Area of Ellipsoidal Heads - Boiler and Pressure Vessel ... - Eng-Tips
Oct 28, 2003 · 1.909 for 2 to 1 Elliptical heads 3.92 for hemispherical heads Here is formula for a cyclinderical vessel with 2 heads. It's an approximation but fairly accurate. You can work from this. I'll try to find my calculations for each head type.
Calculating 2:1 elliptical head wetted surface areas
Mar 27, 2006 · I am trying to calculate the wetted surface area of an horizontal vessel with 2:1 elliptical heads. I can calculate the shell wetted area. However, I do not know how to calculate the wetted area of 2:1 elliptical heads in the horizontal orientation. Suggestions?
Nozzles In Elliptical Head Knuckle Region - Eng-Tips
Nov 12, 2009 · Any words of wisdom with regard to the design of nozzles (pressure vessel) which are located in the zone outside of 80% of the elliptical head diameter (other than don't put them there). The reinforcement issues seem reasonably manageable but it seems to be a bit dicey as the nozzle approaches the knuckle region.
2:1 Elliptical Heads Vs. F&D Heads - Eng-Tips
Mar 23, 2005 · I know 2:1 Elliptical Heads are usually used for small and medium diameters, and higher pressures. And F&D Heads are usually used for lower pressures and larger diameters. If anyone has a standard relationship of pressure versus daimeter for these two types of heads, I would appreciate it.
ASME Heads - Boiler and Pressure Vessel engineering - Eng-Tips
Aug 22, 2006 · I know 2:1 Elliptical Heads are usually used for small and medium diameters, and higher pressures. And F&D Heads are usually used for lower pressures and larger diameters. If anyone has a standard relationship of pressure versus daimeter for these two types of heads, I would appreciate it.
Elliptical head - Mechanical engineering general discussion - Eng …
Feb 27, 2013 · You may have to consider the following two cases. 1. Mechanical design (strength calculation) : If it is applicable to ASME Sec.VIII (or any other pressure vessel code), the required thickness of shell section (including the weld joint of 2:1 ellip. head to shell) shall be strength-calculated with the joint efficiency per the applied RT Level (none, spot, or full).
Forming head for EN 13445 - Boiler and Pressure Vessel engineering
Sep 21, 2016 · Hello, I have this elliptical head 2:1, cold formed from plate, with forming strain=6,2% acc. to ASME VIII Div.I UG-79 formula and deformation F=28,52% acc. to EN 13445-4 9.2-1. Applicable construction code is EN 13445. Head is not for lethal service and starting thickness is 12mm. Material: ASTM SA/A 516 Gr.70N
Nozzles Attached on Elliptical Head - Eng-Tips
Aug 18, 2006 · RE: Nozzles Attached on Elliptical Head SnTMan (Mechanical) 18 Aug 06 11:08 StressFreak, there is a fairly large body of opinion that a nozzle should not be placed outside the 80% limit.