Carbon Steel Dished Bottom Head Large Diameter Hot Pressing Hemispherical Pressure Vessel Tank Head

• Certification: ISO
• Customized: Customized
• Surface Treatment: Natural
• Range of Applications: Industrial
• Type: Boilers Head
• Material: Carbon Steel /Stainless Steel /Low Alloy Steel
• Model NO.: Hemispherical 7
• Diameter: 89mm-12000mm
• Thickness: 3mm-300mm
• Available Shape: Hemispherical/Elliptical/Torispherical/Conical/etc
• Standard: ANSI, ASME ,Mss, API, DIN, JIS, BS
• Forming Method: Cold/Hot Forming
• Connection: Welding
• Surface: Polished/Pickling/Sand Blashed or as Required
• Edge Preparation: as Customer Required
• Product Name: Dished Head/ Dish End/ Dished Bottom/ Tank Cap
• Transport Package: Steel Frame
• Specification: HHA, HHB
• Trademark: YIZHOU
• Origin: China
• HS Code: 73269019
• Production Capacity: 800 Ton Per Month

Product Description

1. Product Description

The hemispherical head is a head consisting of half a spherical shell and a straight edge (short section of a cylinder). Also known as hemispherical tank heads or hemispherical dished ends,Hemispherical heads are a popular choice for pressure vessels due to their ideal shape, which divides the pressure in the vessel equally across the head's surface. The hemispherical head with smaller diameter can be pressed as a whole, with larger diameter normally formed by petals+crown type. The hemispherical head has the minimum thickness required under the same diameter and pressure compared with other types of head,and the surface arear is smallest when the head volume is same. so   Hemispherical heads has the best mechanical properties and most economical materials used. But Due to manufacturing difficulties, it is  generally used for pressure vessels with higher pressure and larger diameter.

2. Main Features
- Materials: Ferritic, austenitic and non ferritic metals that can be cold worked.
- Fabrication Method: Cold Press, Hot Press, Petals
- Dimensions: up to 12,000mm diameter and 300mm thickness.
- Edge preparation: according to your requirement.
- Hemispherical head's Di=2Ri

3. Application
1. Pressure Vessel Industry      2. Petroleum Industry                   3. Chemical Industry
4. Pharmaceutical Industry       5. Sewage Treatment Industry      6. Food Industry
7. Nuclear Power Industry        8. Gas Industry                              9. Aerospace Industry
10. Machinery Industry            11. Construction Industry               12. Shipbuilding Industry
13. Cosmetic Industry             14. General Storage Industry         15. Steam Boiler Industry

4. Specifications

Item:	Hemispherical dish head
Diameter:	89mm-12000mm
Thickness:	2mm-300mm
Material:	Carbon steel, Stainless steel, Low alloy steel, Aluminum, Titanium, Cladding material, etc According to customers' requirement.
Process method	Hot mould pressing, Cold mould pressing, Petals + Crown
Surface Treatment:	Sand Blasting, Pickling
Non-destructive test:	UT, RT, MT, PT
Applicable Standard:	ANSI, ASME ,MSS, API, DIN, JIS, BS, AWWA, PED and GB
Certificate:	ASME-U, ASME-S, ISO9001, ISO14001, OHSAS18001
Applications:	Such as oil, chemical industry, water conservancy, electric power, boiler, machinery, metallurgy, sanitary construction, etc.
Packaging:	Wooden cases, steel shelf or as per customer's requirement.
Custom-made	Support

5. Why to Choose Us
- We provide advanced tank head manufacture technology to assure your tank head 100% quality stability.
- Quality guarantee is one year after installation and commissioning or 18 months after leaving China Port.
- 7 days x 24 hours service, within 24 hours reply / solve of any technical issues upon request.
- Routinely telephone track to remove all might be problems or issues guaranty the tank head long lasting safety and reliability.
- We will consider your all other needs like customs clearance, sea delivery, insurance, customs tax benefit plan, documentations etc. So our respected Users feel so relaxed and easy to get the tank head well. (dished head)

6. FAQ
Q: Can you give us the technical drawing and data?
A: Our products are all custom made. Usually you need to provide us with the drawings. And if you do not have it, some important data is also necessary. We can help you design it after we signed the contract and confidentiality agreement.
Q: Is it possible to know how is my product going on without visiting your company?
A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress.
Q: Are the products tested before shipping?
A: Yes, all of our products were inspected piece by piece and they are all qualified before shipping.
Q: What is the delivery time?
A: The delivery time is usually within 25 working days once deposits received and product drawing confirmed. If the size is too big, and bulk ship, and it may need more time.
Q: What is the packaging?
A: Wooden cases, steel racks or as per customer's requirement.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance, balance before shipment.