Weld neck flanges, welding neck flange, slip on flange, blind flange. 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. Dimensions in inches weld neck flanges and stud bolts asme b16. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. Weldneck flanges or weldingneck flanges can be differentiated from all other types of flange by their long tapered hub. Other than neck, all the dimensions are same as the regular flanges.
The straight length of 6 mm is machined to precisely match with the adjoining pipe so that the welding can be done conveniently. Long weld neck flange is normally used for nozzles on pressure vessels and rarely used with pipe. The lwn or long welding neck flange is available through 24 sizes meeting the asme b16. 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. Weld neck flanges or welding neck flanges can be differentiated from all other types of flange by their long tapered hub. Long weld flange manufacturers, suppliers, factory we produce stainless steel and nickel alloys long weld neck flanges in custom sizes and asme, ansi. Other material grades and compositions available upon request. Weld neck flange manufacturers in stainless steel long. 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. Where we also manufacture weld neck flanges and stainless steel welding neck flange, slipon flange, blind flange, high hub blind.
The charts show the dimensions of weld neck flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters with dimensional tolerances. Eil approved weld neck flange manufacturers and supplier of jis long weld neck flange in india. Long weld neck flanges are a specialty flange which are extensively used in higher temperatures in oil and gas industry. Home datasheets flange datasheets standard connection flange datasheets flange long. Supplier of stainless steel and carbon steel lwnrf flanges at best price in mumbai. 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. We can offer a comprehensive range of long welding neck flange for the right technical solution.
Weld neck flange manufacturers india, long weld neck flange. Flate face ff, raised face rf, ring type joint rtj ss flange standards types and pressure class. 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. Orifice plate is a specially designed plate with a hole at. Lwn flange is often used as a nozzle for a barrel or column. Our company offers a wide range of flanges like pl, sw, bl, wn,so,lj, asme ansi b16. Kenco tubes is one of the prime manufacturers, suppliers and exporters of ansi b16. Long weld neck flange dimensions class 150 to class 2500. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. These long weld neck flange is often used as a nozzle for a barrel or column. The welding neck flanges is normally referred to as the high hub flange.
Long weld neck flanges are available in the following specifications. Jul 02, 2019 welding neck flanges are normally used in severe service applications involving high pressures, high temperatures, large external loads or cryogenic conditions. We are shipping a350 lf2 long weld neck flange, asme b16. 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. It is also called reducing welding neck flange, because the flange neck has a reducing diameter that to weld to a smaller diameter pipe. Long welding neck flange, lwn flanges are similar to a standard welding neck flanges, but the neck is considerably longer than other flanges. This is a weld neck flange, this is a very popular flange, a lot of people use it. Class 150 standard connections flanges texas flange.
We are manufacturer of stainless steel weld neck flange as per ansi b16. Dimensions of these flanges are covered in asme b16. 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. Uses of long weld neck flanges forged components, inc.
Long weld neck flanges are built in a variety of lengths. The welding neck flange is the best designed buttwelded flange of those currently available becuase of its inherent structural value. Weld neck pipe flanges are typically provided with a raised face, flat face, or rtj facing. Long weld flange manufacturers asme, ansi, custom drawings.
The long neck guides the pipe into the flange itself and provides reinforcement that a standard weld neck. Home datasheets flange datasheets standard connection flange datasheets flange long weld neck, ansi class 150, asme b16. Metal industries has been a professionally managed manufacturing and exporters of 300lb welding neck flange mss sp44 asme ansi b16. The technical drawing,dimensional data sheet and weight list of long weld neck flange lwn 600lb according to asme b16. Weld neck flanges are bored to match the inside diameter of the adjoining pipe. Again, as the name says, it has a welding neck right here. Metal industries is a professional steel flanges and forgings manufacturer in india, specialize in manufacturing 300lb welding neck flange mss sp44 asme ansi b16. Long weld neck flange dimensions are covered in asme 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 flanges have a hub that extends from the flanges flat surface, which helps in accommodating the pipes more easily. 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.
Click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions. It is used as a nozzle in the pressure vessel and heat exchanger. 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. 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. Long weld neck flanges, ss long weld neck flanges, stainless. The weld neck flanges manufactured in stainless steel and duplex steel, we also manufacture weld neck flanges at our other factory in vapi, gujarat. Weld neck or welding neck flange dimensions, tolerances and required stud bolts, asme b16. Long weld neck standard connection flanges texas flange. In pressure classes 150 and 300, the height of raised face is approximately 1. Shree steel india is an international supplier of weld neck flanges. The technical drawing,dimensional data sheet and weight list of long weld neck flange lwn 300lb according to asme b16.
As one of the leaders amongst manufacturers, stockist, and exporters of raised face long weld neck flange, asme b16. Long welding neck flanges catalogue hydraulic and offshore. 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. These lengths depend on what the flange is needed for. Fvc maintains a large inventory of sa105 and some inventory of. Weld neck flanges and stud bolts dimensions asme b16. Weights are based on manufacturers data and are approximate. The hub of the flange is straight and thicker than the taper of the weld neck flange. Dimensions in inches of weld neck flanges and stud bolts asme. These flanges are highly durable, corrosion resistant and reliable. High pressure forged flanges industrial flanges forged. What is weld neck flange, material types, and specifications.
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