What is BS 3799 fittings?
These ICS categories apply to this standard, BS 3799:1974 Specification for Steel Pipe Fittings, Screwed and Socket-welding for the Petroleum Industry:
BS 3799 Additional machinery for the oil and gas sectors
Forged carbon and alloy steel screwed and socket-welding fittings must meet the criteria of this British Standard to be used in the petroleum and petrochemical sector.
This standard’s screwed fittings are designed to be assembled with the pipe that API Std has threaded. 5B or ANSI B2.1. (N.P.T.) It has a high application because it combines surface coating technology with cheap cost and broad, usable range with a corrosion-resistant alloying technique with complete structure and high tightness (no blowhole) of material.
Check BS EN 3799 threaded union dimensions and sizes
How to inspect ASME BS 3799 screwed fittings?
Butt-weld fittings serve the same fundamental purposes as screwed and socket-weld fittings. Elbows, tees, and reducers are produced for screwed and socket-weld applications, much like butt-weld fittings. But there are a few variations that need to be considered.
BS 3799 union and screwed fittings are often limited to installations when the nominal pipe size is 3 inches or less. There are also socket-weld and screwed fittings made of forged steel, malleable iron, or cast iron.
High-pressure and temperature lines frequently employ forged steel fittings. However, fittings made of cast or malleable iron are used to construct low-pressure and temperature lines, such as those for air, water, or condensate.
Refer online latest price list of BS3799 forged threaded fittings
How we can check strength of bs 3799 swage nipple?
Specifications: All swage-nipples-concentric-eccentric-swage are made of seamless pipe or bar material and can withstand pressures similar to straight seamless pipes while in use.
These goods are produced following customer requests and other international standards like ASME bs 3799. This swag nipple is available in concentric and eccentric styles and has MSS SP-95-2006 and BS 3799 measurements.
The following standards apply to materials: ASTM A105, A350 LF2, and ASTM A182. These materials are examined using authorized lab destructive and non-destructive test results.
Schedule 160, extra double heavy, and extra heavy are among the thickness options. These swage nipples have several finishes, including black fishing, electro-galvanized coating, and sandblasting.
Purchase norma bs 3799 swage nipple with destructive and nondestructive testing reports
By which process we can manufacture BS3799 forged fittings?
Fittings constructed of forged steel are known as forged steel fittings. Cutting and heating billets, applying pressure to heated billets under dies to form desired shapes, trimming, and shot blasting are all steps in producing forged steel fittings. Then, for net form and dimensions, machine-forged blank fittings were used.
Forged steel fittings come in threaded and socket-weld end connectors, depending on the uses. Threaded forged steel fittings and socket weld forged steel fittings have specifications that comply with BS 3799 fittings.
ASME BS 3799 standard specifies finish, dimensions, tolerances, marking, and material of screwed and socket-welding fittings
Advantages and disadvantages of BS3799 threaded boss
Threaded joints have advantages
- They have several benefits, some of which include.
- They are trustworthy
- Because of the mechanical benefit provided by the spanner, less force is needed to tighten a joint.
- They are constructed compactly and have minimal overall dimensions.
Problems with threaded joints of BS3799 forged threaded fittings
- They are, and they do, have certain drawbacks.
- As a result of stress concentration at the holes, threaded joints between parts are prone to failure.
- Due to the time and work involved in hand assembly, it might cost up to six times as much to tighten a screw.
Obtain quotes from numerous reputable BS3799 threaded boss stockists in the UAE.
Where is norma bs 3799 socket weld fittings most commonaly used?
The fittings into which the pipes are inserted before welding give socket welding its name. The pipes are placed into these fittings’ recessed sockets before being welded into position.
It’s crucial to leave space between the pipe’s end and the socket’s base while putting the BS3799 forged fittings into the socket. When the heat from the welding process forces the pipes to expand against the socket, this space prevents a stress failure from happening.
The fittings into which the pipes are inserted before welding give socket welding its name. The pipes are placed into these fittings’ recessed sockets before being welded into position.
It’s crucial to leave space between the pipe’s end and the socket’s base while putting the BS3799 forged fittings into the socket. When the heat from the welding process forces the pipes to expand against the socket, this space prevents a stress failure from happening.
