| NAME: | DISH HEAD | OD: | 89mm To 10000mm |
|---|---|---|---|
| WT: | 2mm To 300mm | MATERIAL: | Carbon Steel， SA516 Gr.70 MT N |
| High Light: | heat exchanger components， exchanger parts | ||
A516 GR.70 Elliptical Heads Torispherical Heads Tank Caps For Heat Exchanger Parts.
Ellipsoidal Head，Hemispherical Head and Torispherical Head are three types of ASME Pressure Vessel Dished Heads.
The elliptical head ( or named ellipsoidal head ) which is a head consisting of two parts: a rotating ellipsoidal sphere and a cylindrical straight section. Elliptical tank head is fabricated to have a certain shape instead of a particular dish radius or knuckle radius. The dish radius is approximately 90% of the diameter and the knuckle radius is approximately 17% of the diameter. 2:1 elliptical flanged and dished heads are ASME compliant.
Elliptical Heads Details
D0 = Outer diameter
Di = Inner diameter
SF = Stepped-edge height
DH = Dish height
THi = Total height innen
KR = Dish radius
CR = Wall thickness
Product Specification:
| Carbon Steel; Stainless Steel; Special Steel | |
| Size | 50-10000mm |
| Thickness | 2mm–300mm |
| Surface Treatment | 1. Intermediate & Final stage Heat Treatments; 2. Sand / Shot Blasting after Heat Treatment; 3. Weld Edge Preparation (Manual & Machined) |
| Reduction ratio | About 10% |
| Certificate | ISO9001 |
| Technology | 1. Cold & Hot forming; 2. Hot Pressed Hemispheres and Cold Formed Segmental Hemispheres; |
| Applicable standard | ANSI， ASME， MSS， API， DIN， JIS， BS. AWWA |
| Test | 1. Liquid Penetrant Examination; 2. Ultrasonic Testing; 3. 100% Radiography Testing of weld seams; 4. Magnet Particle Examination; 5. Inspection under various Third party Inspection Agencies 6. NDT( after forming): DPT， RT， MPI， UT; 7. NDT: 100% DPT， UT & RT OF weld joint |
| Connection | Welding |
| Application | Pressure vessel |
Materials
Carbon steel tank ends/caps， flat dished head: SA516 GR60N，GR70N
Stainless steel ELLIPSOIDAL DISHED END， elliptical tank head: SA240 SS304， SS316
Titanium alloy pressure vessel ends: SB256 GR1， GR2， GR5
Production Procedure
Materials purchased – Physical and chemical tests – Production – Hot forging and forming – Heat treatment – Inspection – Fine finishing – Finished product inspection – Marking – Finished product inspection – Marking – Packing and typing – Shipping.
