Weld neck flanges or welding neck flanges can be differentiated from all other types of flange by their long tapered hub. High pressure forged flanges industrial flanges forged. Metal industries has been a professionally managed manufacturing and exporters of 300lb welding neck flange mss sp44 asme ansi b16. Weld neck flange manufacturers in stainless steel long. Weld neck flanges and stud bolts dimensions asme b16. Weld neck flange manufacturers india, long weld neck flange.
Orifice plate is a specially designed plate with a hole at. Heavy barrel hb long weld neck lwn equal barrel e click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions long weld neck standard connection flange classes choose your pressure class below. The lwn or long welding neck flange is available through 24 sizes meeting the asme b16. Home datasheets flange datasheets standard connection flange datasheets flange long. Long weld neck flanges, ss long weld neck flanges, stainless. For the height measures h and b of all described dimensions of flanges on this website, with exception of the lap joint flange, it is important to understand and remember the following.
To order a long weld neck raised face flange, it is important to specify the pipe is being used for, because the inside diameter of the flange will. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. Weld neck flanges, welding neck flange, slip on flange, blind flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. Long welding neck flange, lwn flanges are similar to a standard welding neck flanges, but the neck is considerably longer than other flanges. Weld neck pipe flanges are typically provided with a raised face, flat face, or rtj facing. Long weld neck flanges are a specialty flange which are extensively used in higher temperatures in oil and gas industry. Lwn flange is often used as a nozzle for a barrel or column. We can offer a comprehensive range of long welding neck flange for the right technical solution.
Weldneck flanges or weldingneck flanges can be differentiated from all other types of flange by their long tapered hub. The welding neck flange is the best designed buttwelded flange of those currently available becuase of its inherent structural value. The straight length of 6 mm is machined to precisely match with the adjoining pipe so that the welding can be done conveniently. Where standard weld neck flanges are used extensively for pipes, long weld neck flanges often abbreviated to lwn are used in high pressure and high or fluctuating temperature situations primarily in the oil and gas industry. Other than neck, all the dimensions are same as the regular flanges. The long weld neck flange should be butt welded with the pipes, it means the neck dimensions is same with the matching pipe, same diameter and wall thickness, commonly the long weld has a plain end, not a bevel end for welding.
Long welding neck flange come with imprints relevant to the job information eg, heat number, size, material and part number. Jul 02, 2019 welding neck flanges are normally used in severe service applications involving high pressures, high temperatures, large external loads or cryogenic conditions. Dimensions in inches weld neck flanges and stud bolts asme. Ln flange with class 150, class 300, class 400, class 600, class 900, class 1500 and class 2500. Long weld flange manufacturers, suppliers, factory we produce stainless steel and nickel alloys long weld neck flanges in custom sizes and asme, ansi. The long neck guides the pipe into the flange itself and provides reinforcement that a standard weld neck. We are shipping a350 lf2 long weld neck flange, asme b16. For instance, there are long weld neck flange standard dimensions and long weld neck nozzle dimensions that vary to add extra strength to pipes and mechanicals. Dimensions of these flanges are covered in asme b16. Supplier of stainless steel and carbon steel lwnrf flanges at best price in mumbai. Weld neck or welding neck flange dimensions, tolerances and required stud bolts, asme b16. Long weld neck flange dimensions are covered in asme b16. The weld neck flanges manufactured in stainless steel and duplex steel, we also manufacture weld neck flanges at our other factory in vapi, gujarat. This information is also printed along all delivered long welding neck flange.
We provide a large selection of long weld neck flanges available in long welding neck flanges in best quality. To receive more information about long weld neck connection forging and more, please request a quote or call 281 4414088 to speak to a forged components representative that can answer all of your questions. We are manufacturer of stainless steel weld neck flange as per ansi b16. Uses of long weld neck flanges forged components, inc. Long welding neck flanges catalogue hydraulic and offshore. Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions. The welding neck flanges is normally referred to as the high hub flange. These long weld neck flange is often used as a nozzle for a barrel or column.
It is also called reducing welding neck flange, because the flange neck has a reducing diameter that to weld to a smaller diameter pipe. Flate face ff, raised face rf, ring type joint rtj ss flange standards types and pressure class. Long weld neck flanges are built in a variety of lengths. To order a long weld neck raised face flange, it is important to specify the pipe is being used for, because the inside diameter of the flange will match the inside diameter of your pipe or fitting.
Again, as the name says, it has a welding neck right here. Our company offers a wide range of flanges like pl, sw, bl, wn,so,lj, asme ansi b16. Metal industries is a professional steel flanges and forgings manufacturer in india, specialize in manufacturing asme ansi b16. Long weld neck flangelwn, stainless steel long weld neck. Metal industries is a professional steel flanges and forgings manufacturer in india, specialize in manufacturing 300lb welding neck flange mss sp44 asme ansi b16. What is a long weld neck flange long neck welding flanges lwn are similar to a standard welding neck flange, but the neck is considerably longer. Long weld neck flange dimensions class 150 to class 2500.
Shree steel india is an international supplier of weld neck flanges. This is a weld neck flange, this is a very popular flange, a lot of people use it. As one of the leaders amongst manufacturers, stockist, and exporters of raised face long weld neck flange, asme b16. Dimensions in inches weld neck flanges and stud bolts asme b16. Long weld neck flange is normally used for nozzles on pressure vessels and rarely used with pipe. Long weld neck standard connection flanges texas flange. This flange type is regarded as highhub flanges, which were created so stress could be transferred to the pipe and decreasing the stress concentration at. Eil approved weld neck flange manufacturers and supplier of jis long weld neck flange in india. These lengths depend on what the flange is needed for. Weld neck flanges are bored to match the inside diameter of the adjoining pipe.
Other material grades and compositions available upon request. The long neck guides the pipe into the flange itself and provides reinforcement that a standard weld neck flange cannot. What is weld neck flange, material types, and specifications. The charts show the dimensions of weld neck flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters with dimensional tolerances. It is used as a nozzle in the pressure vessel and heat exchanger. Long weld neck flange lwn flange is also called integral flange, it means a welding neck flange has a very long neck. Where we also manufacture weld neck flanges and stainless steel welding neck flange, slipon flange, blind flange, high hub blind. Weights are based on manufacturers data and are approximate. Long weld flange manufacturers asme, ansi, custom drawings. Fvc maintains a large inventory of sa105 and some inventory of. The technical drawing,dimensional data sheet and weight list of long weld neck flange lwn 300lb according to asme b16. Kenco tubes is one of the prime manufacturers, suppliers and exporters of ansi b16. Class 150 standard connections flanges texas flange. These flanges are highly durable, corrosion resistant and reliable.
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