Asme Standard Forged 2mm Ellipsoidal Dish Head
Asme Standard Ellipsoidal Dish Head
Ellipsoidal head is also called elliptical head or elliptical dish end. The shape of this ellipsoidal head is more economical, because the height of the head is just a fraction of the diameter. The elliptical dish end radius varies between the major and minor axis usually with the ratio is 2:1. The elliptical tank head is the economical solution for medium pressure tanks due to the reduced metal thickness requirement.
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Material |
Carbon steel, stainless steel, aluminum, exotic alloys, special steel |
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Size |
50-10000mm |
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Thickness |
2mm--300mm |
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Surface Treatment |
1. Intermediate & Final stage Heat Treatments; |
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2. Sand / Shot Blasting after Heat Treatment; |
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3. Weld Edge Preparation (Manual & Machined) |
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Reduction ratio |
About 10% |
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Certificate |
ISO9001, CE, ASME, SGS |
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Technology |
1.Cold & hot forming; |
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2. Hot pressed hemispheres and cold formed segmental hemispheres; |
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Applicable standard |
ANSI, ASME, MSS, API, DIN, JIS, BS, AWWA and GB |
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Test |
1. Liquid Penetrant Examination; |
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2. Ultrasonic Testing; |
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3. 100% Radiography Testing of weld seams; |
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4. Magnet Particle Examination; |
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5. Inspection under various Third party Inspection Agencies |
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6. NDT( after forming): DPT, RT, MPI, UT; |
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7. NDT: 100% DPT, UT & RT OF weld joint |
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Connection |
Welding |
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Application |
Pressure vessel |
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Product Features |
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• Rustproof |
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• Good corrosion resistance |
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• Anti-wearing |
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• Good-appearance |
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• Excellent mechanical properties |
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• Easy stamping |
Application
The ellipsoidal head has good mechanical properties better than the torispherical head. Due to the application of spinning manufacturing process in recent years, the fabrications of the larger diameter elliptical head is also can be realized. ASME elliptical dished heads are used in the construction of tanks for unfired pressure vessels, such as liquefied petroleum gas and air receivers.
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