Vessel Heads

Vessel heads are very varied used in candle holders to pipe end-pieces or pressure vessels in equipment construction.

Vessels used to store liquids at low pressure are normally fitted with flat end sections. This is the cheapest way of enclosing the end of a vessel. For storage of fluids at higher pressures, the ends are normally domed to reduce mechanical stresses.

A number of different domed head designs are used.

• Air Pollution Control- Scrubbers for Coal-Fired Power Plants
• Seawater Cooling Devices
• Architectural railings
• Wiring In Electrostatic Precipitators
• Oil Refinery
• Gas Scrubbing Plants
• Pulp and Paper Processing Industries
• Acetic, Phosphoric and Sulphuric Acid Processing Plants
• Oil and Gas Production – offshore process equipment Offshore, sea water technology, chemical industry, good stability against reducing acids of medium strength like sulphuric acid and phosphoric acid and various chloric media, refinery, paper industry, pulp industry

For pressures over 10 bar, ellipsoidal heads are often used. In cross-section, the head resembles an ellipse, its radius varying continuously. This results in a smooth transition between the dome and the cylindrical part of the vessel. Ellipsodial heads are deeper than comparable torispherical heads.

Torispherical head Dimensional Characteristics:

Compared with elliptical head, due to its easier manufacturing processes, the torispherical head is often used in addition to the pressure is larger diameter pressure vessel.

With the same same design conditions with the same design pressure, design temperature and material, your calculated wall thickness under internal pressure will be approximately half of the shell thickness.

For example, if you have calculated your shell thickness under internal pressure and obtained 12 mm, your hemispherical head thickness also will be approximately 6 mm.

The inside depth of your Torispherical head will be one-half of head inside diameter (h = D/2).

Dimensional Inspection of Pressure Torispherical head

You need to make a dimensional inspection on the pressure Torispherical head for any effort for the fit-up process. The dimensional inspection is done on the knuckle radius, crown radius, skirt length, depth and thickness.

We are manufacturer of End caps 48inch api 5l x46 carbon steel din28011 and supply high quality End caps 48inch api 5l x46 carbon steel din28011 in both large and small quantities worldwide and offer you the best prices in the market.

Pipeline steel plate API 5L PSL1 X46 and Pipeline steel coil API 5L PSL1 X46 are mainly used in making steel pipes for pipeline which transporting oil and gas.

Technical Requirements & Additional Services:

• Drop weight test (DWTT)
• Low temperature impacting test
• Ultrasonic test under EN 10160,ASTM A435,A577,A578
• Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
• Shot blasting and Painting,Cutting and welding as per end user’s demands

What is pipeline steel plate (steel coil)

As we know line pipe or casing and tubing have two different manufacturing types, seamless and welded. So pipeline steel plate is used to make welded line pipe, including ERW, LSAW, SSAW welding processes. Further more, casing and tubing in API 5CT standard could also be made in welded ERW type, so pipeline steel plate and coils also covers these pipes. (But in most cases, casing and tubing are required in seamless types.)

SunnySteel supplies pipeline steel plate (steel coil) in API 5L and API 5CT. Applied for manufacturing line pipes, casing and tubing.

Product Attributes

Carbon steel caps manufactured using superior grade raw materials. Carbon steel caps are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries, paper, cement & ship builders.

• End Connection: Butt Weld
• Body Material: Carbon Steel
• Body Material Spec: ASTM A234 WPB
• Schedule: Sch 40 (Std)
• Specification: B16.9
• Specification Type: ANSI

Disdhed Plates	Heads	Torispherical Heads	Vessel Heads D

Features

End Caps are used for connecting pipes of different diameters and find wide applications in various chemicals, construction industries, paper, cement & ship builders.