Product Details

ASME Oval Hemispherical head Cold pressing head of pressure vessel Tank

Product Description

1. Grade: Carbon steel, Stainless steel, Aluminum,Titanium,etcAccording to customers requirement.

2. Size: 89mm--10000mm

3. Standard: ANSI, ASME ,MSS, API, DIN, JIS

4. Certification: ISO9001 ,ISO14001,OHSAS18001

5.Name:Stainless steel 304 hemisphere half hollow ball 36 hollow steel ball metal half sphere

Main Products	Torispherical; 2:1Semi Ellipsoidal; Hemispherical; Flat Bottom; Floating Heads; Tank Heads; Dish Heads; Dished Ends; Pipe Caps....
Material	Carbon Steel;Stainless Steel; Aluminum; Exotic Alloys; Special Steel...
Technology	1.Cold & Hot forming ; 2. Hot Pressed Hemispheres and Cold Formed Segmental Hemispheres;
Treatment	1. Intermediate & Final stage Heat Treatments; 2. Sand / Shot Blasting after Heat Treatment; 3. Weld Edge Preparation (Manual & Machined)
Testing	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
Welding	1. X-ray quality welding; 2. Edge beveling (machined) 3. Roll, Tack Re-roll or Fully Welded w/ X-Rays and Partial Data Reports
Services	Additional services include Custom Part Burning, Welding, Beveling, Pickling, Charpy Impact Testing, Sandblasting, Hardness Testing, Ultrasonic Testing and more
Application	Pressure Vessels, Heat Exchangers etc.

Producing-process

ASME Oval Hemispherical head Cold pressing head of pressure vessel Tank

Picking steel---Cutting---Welding---Heating---Spinning---Stamping---Trimming---Defect detection---QC---Warehousing---Transportation

Product Show

Hemispherical Head (also called hemispherical tank heads or hemispherical dish ends) is widely applied to make pressure tanks to storage liquids and gasses. Our asme hemispherical head is often made with carbon steel, stainless steel, austenitic and non ferritic metals that can be cold worked. Hemispherical is the ideal shape for development of hemispherical dish end, because the pressure in the vessel is divided equally across the surface of the head. The radius (Ri) of the head equals the radius of the cylindrical part of the vessel. This type of hemispherical tank heads or hemispherical dish ends are made in most popular sizes and thicknesses.

Compared with other forms of dished head, due to manufacturing difficulties, the hemispherical head is often used in addition to the pressure is higher, larger diameter pressure vessel.

The hemispherical shape is superior to the torispherical shape in strength. Hemispheres are the best shape for mixing vessels such as pharmaceutical manufacturing bowls, because the corner which can cause burning-on of product in a torispherical shape, is therefore eliminated. Our hemispheres are of extra smooth contour, so that agitator blades swipe the surfaces much more effectively.

Packaging & Shipping

Stainless steel 304 hemisphere half hollow ball 36 hollow steel ball metal half sphere

1, Shipment by bulk OD more then 5000mm

2, GP Containers for OD within 2200mm
3, FR Container OD within 4000mm
4, Iron Cage and wooden pallets accordingly.

Wechat/Whatsapp:86-18264838918
Frieda

FAQ

Q: What’s the information should I provide when inquiry?

A: Thanks for your question. If you have drawings, we will be entirely in accordance with production drawings . If you do not have the drawing, you can tell me the product data. There are several important data, such as material, type of head( We have elliptical head, hemispherical head, dished head, flat head, etc. ),diameter, thickness, special tolerances or requirements. We can do the drawings according to your requirements, and you confirm that the final product drawings.

Q: what are surface treatment of the product?

A:Thanks for your question. For carbon steel products, we sandblasting descaling product surface. For stainless steel products, we use acid to remove surface oil and impurities.

Q: How do you ensure the quality of products?

A: Thanks for your question.Our production staff is trained through national quality department, and obtain the corresponding certificate, with years of production and design experience. Weld must undergo X-ray inspection to ensure that no defects.

Q: Can you help us matching related products?

A: Thanks for your question. Our company also is surrounded by a lot of ancillary businesses, such as flanges, boiler, oil refining equipment, etc. We can help you matching the highest quality products with the lowest prices .