The Use of Flanged Joint Pipe – The Different Types of Flanged Joint Types

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What is a flanged joint pipe? Flanged joint pipes are made up of two pieces joined together by a flanged neck. The flanges are generally not boltable together since they don’t have matching contact surfaces and different types of gaskets. This is an important consideration when selecting a joint pipe. Learn more about the different types of flanged joints in this article.

ANSI B18.2.1

A flanged joint is a type of pipe with tapered threads. The pipe flange is threaded onto the pipe barrel. A flange is threaded onto the pipe barrel so that it extends through the flange. The flange’s face must be perpendicular to the pipe axis. A flange shroud covers the working threads. A commercial-grade thread compound is applied to the pipe’s threads before assembly.

When flanged joints are covered by this standard, bolting of the materials specified in the table is recommended. Bolting of other materials is permitted but may be subject to additional requirements imposed by the applicable code or government regulations. ANSI B18.2.1 flanged joint pipe specification allows bolting of any comparable material provided it meets the requirements specified. Intermediate-strength bolting is allowed provided it meets all requirements and is capable of seating the gasket and maintaining a sealed joint under the expected operating conditions.

The most flanged joint pipe is manufactured in a shop. Hand-threading in the field is not recommended. A factory-assembled flange can be removed and replaced, but a suitable thread compound is needed to achieve the desired result. Hand-tight flanges should be limited to 16-inch pipe sizes and smaller. Flanged joint materials are not furnished on a flanged pipe.

The material used for the flanged joint is AWWA C111 EPDM rubber. The pipe sleeve is AWWA C151 ductile iron pipe or ASTM A53/A53M schedule 40 zinc-coated steel pipe. An accurate mercury thermometer has a lens front tube and a cast aluminum case with an enamel finish. The stem is made of copper-plated brass. The accuracy range is 1.5 plus or minus. The construction is Class 125 with a union on the outlet and inlet. A temperature and pressure test plug on the outlet is included. A combination blow-down or back-flush drain is also provided.

ANSI B18.2.2

ANSI B18.2.2 flanged joint pipe is a type of flanged joint for piping applications that are buried or exposed to elevated pressure. This type of pipe has a maximum working pressure of 250 psi and may be upgraded with Toruseal gaskets. Its design makes it less flexible than a flanged joint pipe, but it can still be used in many applications.

Flanged joints are a common type of pipe. These pipes are characterized by tapered threads on the flange. They are threaded onto the pipe barrel and extend through the flange. The flange face is perpendicular to the axis of the pipe. They are usually covered by a flange shroud. A commercial-grade thread compound is applied to the pipe threads before assembly.

Flange assemblies tend to relax, especially in high-temperature applications. Many factors determine the rate of relaxation. The embedment of studs and nuts, the rotation of the flange, and gasket creep are among the causes. Bolt-nut combinations should have the entire nut-bolt combination. Failure to do so will create a weak connection. Hence, it is essential to tighten all bolts to ensure a proper flanged joint pipe installation.

Other materials can be used if permitted by code or government regulations. For example, the use of steel stud bolts in flanged joints is acceptable provided that the bolts are stronger than the bolts that hold the flange.

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WN Welding Neck Flange

A long welding neck flange is a pipe-like structure that connects to the flange. Its function is to serve as a nozzle for a barrel or column. These flanges are available in various thicknesses and different shapes. Those manufactured according to the ANSI standard have the advantage of being able to withstand high pressures and temperatures. Besides, they can be custom-made to meet specific requirements.

When selecting a WN welding neck flange, be sure to choose one with the right thickness for your pipe. They are available in a variety of materials, including carbon alloy, nickel alloy, and stainless steel. ASTM and ASME standards will help you select the best welding neck flange for your application, like ASTM A860 WPHY 65.

A weld neck flange is a type of flange with a long conical neck that is welded to a pipe. The pipe has an internal diameter that is equal to the internal diameter of the flange. Consequently, the flange has a continuous sectional flow that prevents interruptions or turbulence. Because of this, the flange provides high structural strength and stress distribution. Its benefits include low cost and flexibility.

Long WN flanges are ideal for welding applications. Long WN flanges have numerous holes drilled into them. They are also often used to attach to a bolted flange. WN welding neck flanges are available in standard and reducing diameters. For your next welding project, be sure to consider a WN welding neck flange. This type of flange is available at Lynco Flange & Fitting, a trusted source for high-quality products.

The WN welding neck flange is a high-strength forge product. It is most commonly used to join two pieces of piping, such as a flange and a pipe. Its unique design allows for a tight and strong connection while being easy to assemble and disassemble. WN flanges are typically forged at the flange face and feature a tapered, raised area around the pipe.

WN Concentric Butt Weld Reducer

The WN concentric butt weld reduction is used in pipe fittings that require a reduced or full load factor. They can be found in the schedules 20, 40, and 60. Standard and extra heavy butt welds are rated for 3,000 psi, while double X heavy requires schedule 80. These weld reducers are available in a range of sizes.

The 31W concentric butt weld reducer is available in both 304 and 316 stainless steel. The 316L version of the buttweld reducer features a lower carbon content than 304, which allows it to resist corrosion. It is standardly manufactured with No. 7 OD and ID finishes. The WN concentric butt weld reducers can be used to couple different-sized tubes and are suitable for many industries.

Butt welding reducers are the most common pipe fittings. They are used to connect pipes of different diameters by adjusting the flow rate and speed of the fluid. They are available in two main types: concentric and eccentric. Concentric butt weld reducers allow large pipes to be connected to smaller ones, and eccentric butt weld reducers enable welded connections between pipes that have the same centerline.

The WN concentric butt weld reduction method is a flexible and reliable way to connect pipe and tube sections with different diameters. It is made by hot forming or bending pipe to the desired size and is widely used in gas, oil, and shipbuilding applications. In addition, it is also a much cheaper alternative to threaded and socket weld pipe fittings.

 

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