By TradeIndia Team in Manufacturers — 15 May 2022

Socket Weld Fittings Manufacturers, Suppliers & Exporters in India: 10 Best

Q: What form of a weld is precisely defined as a socket weld?

The weld that connects specialized pipe fitting like removers, tees, and elbows to pipes is known as a socket weld. A socket weld permanently joins the line to the recessed section of the joint. Socket weld pipe connectors are pipe fittings that are joined using this manner.

A socket weld or often referred to as a socket weld fitting is a pipe connectivity feature in which a pipe is inserted into a depression inside valves, fittings, or flanges. Socket weld fittings, rather than buttweld fittings, are often used for small tube diameters (Small Bore Pipes), such as pipelines having a nominal diameter requirement of NPS 2 or less.

Fillet-type seal welds connect pipe to pipe networks and adjacent pipe sections. Socket welded connections are a practical option where superior leaking integrity and strength properties are essential to design factors.

Due to its use of fillet welds and abrupt fitment geometry, fatigue resistance is less than that of butt-welded construction, but it is better than most of the other mechanical joining techniques.

Socket weld fittings details

SW Fittings are high-pressure fittings utilized in various industrial applications.

They're used to transport flammable, poisonous, or costly materials where no leakage is allowed and steam at 300 to 600 PSI.
They can only be used in combination with ASME Pipe and come in about the same size category.
They are designed to give superior flow characteristics and are utilized when the pipework is permanent.
They are made in line with ASME B16.11 and are manufactured to many ASTM specifications. The B16.11 standard specifies pressure-temperature rating, specifications, tolerance, marking, and material requirements for forged carbon and alloy steel. Forgings, bar, seamless pipe, and seamless tubes that meet the chemical standards, melting methods, and mechanical property criteria of ASTM A105, A182, or A350 are acceptable material forms.
Class 3000, 6000, and 9000 are the three pressure classifications offered.

Advantages of Socket Weld fittings

There exists no need for bevelling the pipe as welding preparation.
Because the fitting assures good alignment, no interim tack welding is required for alignment in theory.
The weld metal is unable to penetrate the pipe bore.
They can be used instead of threaded fittings, reducing the danger of leaking.
Because radiography is impossible on the fillet weld, proper fitting and welding are essential. Surface inspection, magnetic particle (MP), and liquid penetrant (PT) inspection procedures may all be used to check the fillet weld.
Because there are no stringent fit-up requirements and no special machining during butt weld end preparation, construction prices are lower than butt-welded connections.

Disadvantages of Socket Weld fittings

The welder should leave a 1/16 inch or 1.6 mm expansion room between the pipe and the socket shoulder.
Preparation for Welding (ASME B31.1 para. 127.3) (E) According to Socket Weld Assembly.
The pipe or tube should be placed in the socket to the deepest point and then withdrawn about 1/16" (1.6 mm) away from the conflict between the top of the tube as well as the shoulder of the socket during joint assembly before welding.
Socket welding is unsuitable for Ultrahigh Hydrostatic Pressure (UHP) applications in the food industry. It does not allow full penetration and leaves difficult-to-clean overlaps and crevices, resulting in virtual leaks.
Because of the expansion gap and internal fissures left within the socket, welded systems are less appropriate for corrosive or radioactive situations where solid accumulation at the joints can cause operations and maintenance issues. Butt welds are often required in all pipe diameters, with full welding parameters into the piping.

Socket weld fitting parts

Sl no.	Part	Description
1.	Socket weld Couplings	Full-coupling This pipe would be used to connect two pipes or a nipple. Half-coupling To build a branch connection, this might be immediately welded to a run pipe. Reducing coupling It aids in connecting two pipes with varying outer diameters. Reducer inserts. These were made in accordance with MSS SP-79. It makes it possible to combine pipeline reductions cost-effective and timely. As a result, conventional socket weld fittings could be used to create these.
2.	Socket weld Union	Union is a screwed joint arrangement that consists of three connecting components. It has two internal threads and then a centre that, when rotated, draws the ends together. As a result, the unions must be firmly screwed together before the lots are welded together. This will assist in keeping seat warping to a minimum.
3.	Socket weld Elbow	It has been a typical socket weld fitting utilised in pipelines to change the fluid directions. Socket weld elbow (SW elbow) has 45 degree and 90-degree varieties, made in forging procedures, and it also has an extended radius (LR with 1.5 X OD) and a short radius (SR with 1 X 0D) models.
4.	Socket weld Tee (SW Tee)	Tee Straight vs Tee Reducing This is used to form a ninety-degree branch from the pipe's main course. The socket weld reduction tee has a reduced diameter branch that connects two smaller pipe branches.
5.	Sockolet	Sockolet (socket) is a common socket weld pipe fitting. It's used for the same thing as weldolet and threadolet: weld a smaller diameter pipe into a larger diameter pipe body. Sockolet, on the other hand, features a one-of-a-kind socket that's perfect for welding (the socket is situated inside the olet). It offers a nice 90-degree rotation and increased robustness to withstand high pressures.
6.	SW Cross	The Cross might also be used to create a 90-degree branch off the main pipeline.
7.	SW Cap	The cap is the final cap. This is used to cover the pipe's termination.

Top 10 socket weld fittings manufacturers suppliers exporters in India

1. Radha Krishna Engg. Co.

Radha Krishna Engg. Co. has been offering various types of pipe fittings and valves since 2014. They are the reputed Socket weld Fittings manufacturers where these items are used in oil refineries, chemical plants, sugar mills, pharmaceutical plants, and water treatment plants.

2. M.S. FITTINGS MANUFACTURING CO. PVT. LTD.

In May 1957, a group of highly skilled and entrepreneurial original partners founded M.S.FITTINGS MANUFACTURING CO.PVT.LTD. It has developed by great strides over the previous six (6) decades, and it now has a clientele of well-known consumers to its credit. So, they prove to be the ultimate Socket weld Fittings dealers.

3. Diamond Flanges & Fittings Pvt. Ltd.

As a maker of piping system flanges, fittings, and fabricated items, they present themselves as pioneers (ISO certified). Being one of the best Socket weld Fittings suppliers, flanges and fittings are made to ASTM, EN, API, JIS, ISS, BSS, DIN standards, and customised drawings and requirements.

4. BENDS UDYOG

Bends Udyog is a major socket weld fittings manufacturers, producer, and supplier of socket weld fittings. They have a diverse clientele base that ranges from government, semi-government and private contractors.

5. Advance Engineering Corporation

They are also the reputed Socket weld Fittings suppliers where they make weld fittings to dimensional standards B16.9, BS:3799, and MSS-SP-95 out of ASTM and IS standard carbon steel, low alloy steel, and stainless steel components.

6. Tirupati Pipe Fitting Company

Tirupati pipe fitting company began as a solid manufacturer and distributor of mild steel black pipes, ms flanges, and cp bath fittings in 1990. They also serve as retailers for our retail network.

7. Uday Steel & Engg Co

Uday Steel & Engg. Co. is a trustworthy company that provides a long-lasting and corrosion-resistant line of Buttweld Fitting & Pipe Fittings. Being the perfect Socket weld Fittings dealers, they make sure to provide the ultimate quality services as per the requirement.

8. Skyland Metal & Alloys Inc

Skyland Metal & Alloys Inc is a government-approved star export corporation and an ISO 9001-certified organisation that has become a "Worldwide Distributor for All Metals & Alloys Since 1991." Skyland metal & Alloys is a well-known stockist and supplier of ferrous and nonferrous metals and they are one of the best Socket weld Fittings exporters. Skyland metal & Alloys is innovative and research-based, as a trailblazer and visionary in the Supplier sector.

9. United Forge Industries

United Forge Industries is a registered ISO 9001:2008 company which is a top Socket weld Fittings exporters that manufactures and exports the highest quality alloy steel, carbon steel, high pressure forged fittings, stainless steel butt welded pipe fittings, and flanges.

10- R K Pipes And Fitting Company

Based out of Kolkata, this company specialises in butt weld fittings, namely socket weld fittings and other fittings.

Conclusion

These fittings, which are available in various ASTM standards and grades, are essential for maintaining high-strength connections. They are generally made following ASME B16.11. This standard specifies tolerances, temperatures, pressures and material specifications for alloy steel and forged carbon fittings. With the use of fillet welds and abrupt fitting geometry, fatigue resistance is lower than in butt-welded construction; however, it is also superior to many mechanical joining techniques.

FAQs: Socket Weld Fittings

Q. Socket weld fittings are used for what?

Ans. A socket weld is a pipe connection feature that involves inserting a pipe into a depression in a valve, fitting, or flange. Socket Weld fittings, unlike butt weld pipe fittings, are primarily utilised for small pipe sizes.

Q. What form of a weld is precisely defined as a socket weld?

Ans. The weld that connects specialised pipe fitting like removers, tees, and elbows to pipes is known as a socket weld. A socket weld permanently joins the line to the recessed section of the joint. Socket weld pipe connectors are pipe fittings that are joined using this manner.

Q. Describe weld fitting.

Ans. Welded pipe fittings, available in stainless steel and carbon steel, are the connecting components that allow valves, pipes, and equipment to be connected to the piping system.

Q. What makes a fillet weld different from a socket weld?

Ans. Socket weld (SW) is a pipeline insertion welding procedure in which two different sized sections of pipe are welded together, and the smaller one is placed into, the larger one. The fillet weld is entirely around the perimeter of the enormous pipe.

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