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Pipe Cap and dished head are similar in shape, material for stainless steel is more, pipe cap size is relatively small, forging; a little more dished head size, generally with the pressing of steel, pipe cap is generally used for the end of the pipe, head for container equipment (vertical) equipment parts or left and right ends (horizontal). The convex cap includes a hemispherical, oval disc cap, pipe cap and spherical cap. Look at the convex cap from the hemispherical force from the angle of. Pipe Cap is directly welded to die at the end of the pipeline; at the end of the pipeline can also welding flange, then with a blind flange to death, when necessary can open the blind flange, pipeline check inside. The conventional cap holder with pressure pressing made by thick wall; forging; by spinning large diameter. The need for maintenance or even after the connecting line, with blind, not later, with a pipe cap. With the blind plate has the possibility of leakage, there is a long time, and screw rust died, as useless, the heat pipe is not very easy to heat insulation. wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Making high pressure alloy reducer of materials need some special raw materials for production, these materials to strict selection and control, raw material to choose a suitable, otherwise produced welded elbow wouldn’t have quality assurance. High pressure alloy reducer used material is a class with special electrical, acoustic, thermal, mechanical, chemical and biological function of new materials, is an important basis for the field of biological technology, energy technology and other high technology and national defense construction materials and also to reform some traditional industries, such as agriculture, chemical industry, building materials and other plays a important role. The appearance of high pressure alloy reducer should be crack, heavy leather, wall thickness should be greater than the large diameter end of the pipe wall thickness. High pressure alloy reducer of roundness should not greater than 1% of the corresponding end of the outer diameter and tolerance of plus or minus 3mm; high pressure alloy reducer’s center of the two ends of the line should be coincident, the eccentric value tolerance of + / – 5 mm. According to the need, a circular ring shells can be cut into four 90 degree elbows or six 60 DEG elbows or other specifications of the elbow and the process of alloy used in the manufacture of high pressure alloy reducer in diameter and bend diameter ratio greater than 1.5 any specification of large reducer is current an ideal method for large-scale high pressure alloy reducer manufacturing. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

The characteristics of alloy tee is used in valve: One, alloy tee structure is simple, small size, light weight; Two, the alloy tee fluid resistance is small, the resistance coefficient and the same length of the tube segment is equal; Three, close and reliable, the current valve sealing surface material widely used plastic, good sealing, in the vacuum system has also been widely used; Four, three alloy has the advantages of convenient operation, open and close rapidly, from fully open to fully closed as long as 90 degree rotation, facilitate remote control; Five, alloy three easy maintenance, valve structure is simple, the sealing ring is generally active, demolition and replacement are more convenient; Six, in the fully open or fully closed, the ball and valve seat sealing surface and the dielectric isolation, the media through, will not cause the valve sealing surface erosion; Seven, alloy three wide range of applications, from small to a few millimeters diameter, large to a few meters, from high vacuum to high pressure can be applied. wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Welding staninless steel pipe, commonly used steel or steel curl after the crew and mold made ​​of steel pipe welding after molding. Welded staninless steel pipe definition Welding staninless steel pipe, commonly used steel or steel curl after the crew and mold made ​​of steel pipe welding after molding. Welded steel pipe production process is simple, high production efficiency, variety specification equipment owned, but the general strength less than seamless steel pipe.  Since the 1930s, with the rapid development of high-quality strip steel rolling production as well as welding and inspection technology advances, the weld quality and continuously improve, increasing number of varieties and specifications of welded steel pipe, and in more and more areas instead pipe joints. Characteristics of stainless steel welded pipe First, the continuous in-line production, the thicker wall thickness, greater investment units and welding equipment, the more it does not have the economic and practical.  Thinner wall thickness, its input-output ratio will be a corresponding decline; Secondly, the process of the product to determine its strengths and weaknesses, general welded steel pipe high precision, uniform thickness, tube appearance and high brightness (the plate surface level decision steel pipe surface brightness), may optionally be cut to length. Therefore, it is reflected in high-precision, low-pressure fluid applications of its economy and aesthetics.

Large flange as a sealing and fastening connection parts, installation is simple, flexible, long life, in the field of aerospace and petroleum, chemical and other large containers have a wide range of applications. First of all, the large flange connection of the weld to go through 100% of the ultrasonic or radiographic testing. There is no crack or other defects on the surface of the large flange plate to reduce the flange connection or strength. Length to diameter of the flange. In working pressure is equal to or greater than 0.8 times the standard provisions of the maximum allowable working pressure and large flange and pipe welding seam to were 100% X-ray inspection. If the pressure vessel pattern of the large flange is not satisfied with the requirements of the container shell, it is required to be implemented according to the contract or marked in the drawing. Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Introduction: Industrial Metal Pipe Fittings Industry are mainly used in petroleum, petrochemical, chemical, natural gas, shipbuilding, electric power, medicine, gas, heat and other industries, especially in the industries of the national economy, especially the Is a huge demand space for emerging fields such as shale gas, ocean engineering and nuclear power. It is an indispensable and important pressure pipeline component for the sustained development of the national economy. Industrial Metal Pipe Fittings refers to the connection of two parts of the pipeline or other pipe fittings items, is an important industrial pipe fittings, including tee, cross, elbow, reducer, head, flange, belonging to the fabricated metal products industry . Many types of industrial metal fittings, according to different standards can be pided into different types. According to the current stage of China’s industrial Metal Pipe Fittings manufacturing enterprises of the product classification standards, according to its function will be pided into industrial metal pipe: elbow, flange, tee, cross and reducer. Table 1: Classification of industrial Metal Pipe Fittings TypeThe main contentElbowUsed for turning the pipeFlangeA part for interconnecting the pipe and the pipe is connected to the pipe end TeeFor the three pipes where the collection CrossFor the four pipes where the collection ReducerFor the different diameter pipe connected to the two places Industrial Metal Pipe Fittings are mainly used in petroleum, petrochemical, chemical, natural gas, shipbuilding, electric power, medicine, gas, heat and other industries, especially in the industry, especially in the industrial, industrial, industrial pipe fittings products with strong special features, high added value and wide application characteristics. Rock gas, marine engineering and nuclear power and other emerging areas of great space, the prospects should be optimistic. First, the status of industrial metal pipe industry development China’s industrial metal pipe fittings industry, enterprises, small scale, relatively scattered production situation. As of the end of 2013, China has a total of more than 40,000 industrial metal pipe fittings business, small-scale enterprises, the majority of private enterprises, the annual production capacity of 1,000 tons in general; annual sales of more than 20 million yuan of about 200 enterprises. 2007-2013, China’s metal pipe production showed a year-on-year trend, but since 2011, growth has declined. Industrial metal pipe products mainly supply petrochemical, natural gas, ship, electricity, heat, medicine and other industries. With the national efforts to strengthen energy investment, the discovery of a large number of new oil fields and the strategy of West-East Gas Transmission, the “gasification strategy” of various provinces and cities in the country, deep processing of coal resources, strategic reserves and more use of aviation fuel will be greatly enhanced Pipe fittings industry’s sustainable development. The main raw material of industrial metal pipe is steel products, including carbon steel and stainless steel and other materials, the industry’s upstream industry is steel ingot, steel pipe, steel manufacturing. With the development of materials technology, titanium-based alloys, nickel-based alloys and other new materials are also beginning to apply a large number of pipe fittings industry. The price, variety and quality of iron and steel products have an important influence on the industrial metal pipe fittings industry. China is a large steel producer, steel pipe, steel, ingot products sufficient supply of raw materials to ensure that the industry supply. But in recent years, with the rising prices of iron ore, steel prices continue to rise, reducing the domestic industrial metal pipe industry profits. Industrial metal pipe industry is widely used in various fields, including petrochemical, shipbuilding, electric power, natural gas, medicine, food and many other industries. In the 12th Five-Year Plan, the State Council proposed to speed up the development of new energy sources, promote the clean and efficient use of traditional energy sources, actively develop hydropower under the premise of ecological protection, develop nuclear power on the basis of ensuring safety, strengthen power grid construction, Improve the oil and gas transmission pipeline network, expand oil and gas strategic reserves. Downstream energy, power industry development requires a lot of equipment investment, and equipment manufacturing performance, specifications, materials of different industrial metal pipe products. Downstream enterprises and industrial metal pipe fittings enterprises to establish long-term stable cooperative relations to ensure the safe operation of equipment and adequate supply. The development of the downstream industry to ensure that the industrial metal pipe industry has a stable and growing market demand. The domestic industrial metal pipe fittings industry, the general market competition, such as ordinary carbon steel, small-caliber varieties of products such as adequate supply, but the large diameter, composite materials, high-performance (high temperature, low temperature resistance, high pressure, corrosion) and for special industries Demand for the development of new products in short supply. Oil and gas industry needs to build long-distance pipeline large diameter, high pressure pipe, oil cracking industry in urgent need of high temperature, high pressure collection of pipe fittings, chemical industry required for the production of stainless steel metal matrix composite pipe fittings, power industry required Can withstand supercritical or even ultra-supercritical working state of the alloy, thick-walled pipe, chemical, shipbuilding industry, the need for standardized pipe system modules are in short supply range of products. Mainly due to cost factors, developed countries, the production of metal pipe less, need from China, India, Brazil, China Taiwan and other countries and regions, the Chinese metal pipe export market in the future have greater room for growth. In recent years, thanks to the huge demand of the downstream industry, industrial metal pipe industry, the overall market demand for rapid growth, the market supply is also increasing rapidly. In the course of exploiting the downstream customer market, the major enterprises in the industrial metal pipe fittings industry rely on their unique advantages in customer resources to form a concentrated market in different directions, mainly in the petrochemical, shipbuilding, power and other industries. Second, the industrial metal pipe industry competition In the current metal pipe industry, small diameter, low pressure, mainly to carbon steel pipe fittings, mainly used in the metal pipe without special technical requirements of the operating environment, known as the general metal pipe; and large diameter, medium High pressure, the use of high-grade steel, alloy steel or special metal material manufacturing, its application of the industry has strong professional and targeted pipe fittings, known as the special steel pipe fitting industrys or high-end pipe fitting industrys. From the industrial metal pipe industry competition, the domestic production of metal pipe business is very large, but most of the smaller, mainly engaged in general metal pipe manufacturing, the real can produce high-quality, high-tech high-end metal pipe business is less. In the low-end pipe market, there is fierce competition. The supply and demand of high-end products such as large-caliber, composite materials and high-performance products are insufficient. The industry is in the low-end market and the high-end market is not perfect. China’s industrial metal pipe industry competition has the following characteristics: ① enterprises generally smaller scale. China’s annual production capacity of pipe fittings enterprises generally 1,000 tons in the following, most companies use small workshops, small factories type of production. On the one hand, the pattern of market demand caused by the other hand, most of the pipe fittings for private enterprises, by the capital, talent, market development and other factors, do not have sustainable development. ② enterprises lack the core technology competitiveness. The process of cutting, heat treatment, welding and anticorrosion of ordinary pipe production process is not high. The production process mainly depends on manual operation, basically do not use modern automatic control equipment, and do not have the technical innovation and product development ability. ③ product structure is irrational. China’s industrial metal pipe production capacity is mainly concentrated in the small and medium-diameter pipe fittings or carbon steel pipe fittings field, large diameter or high-end pipe production capacity is insufficient. China’s industrial metal pipe fittings enterprises from the product specifications, the main production of small-caliber tube; from the product material pision, the main production of carbon steel pipe fittings. The downstream market demand for large diameter products and high-performance alloy steel, stainless steel and new composite materials generally inadequate supply of the industry need to develop a number of carbon steel, stainless steel, alloy steel and other new composite pipe production capacity of enterprises, To solve the unreasonable product mix situation. ④ affected by the downstream industry fluctuations. The downstream industries of the industrial metal pipe industry are the lifeline industries of petrochemical, shipbuilding and electric power industries. These industries have high market concentration and some enterprises are monopolized or semi-monopolized, and can rely on huge demand to form buyer monopolies. The industrial metal pipe industry, market concentration is low, a single enterprise market negotiation capacity is limited, product sales by the downstream industry as a whole the greater impact of volatility. Industrial metal pipe fittings mainly for supporting the use of downstream industries, industry enterprises are mainly distributed in the petrochemical, shipping, electricity and other downstream industries concentrated in the eastern region. The rapid development of the downstream industry will drive large diameter, composite materials, high performance and high reliability of the strong demand for pipe fittings, especially with China’s urbanization infrastructure to accelerate the development of the central and western regions, oil and gas field development, the world ship order transfer, Resource exploration, construction of nuclear power plants and other construction projects, will have been in short supply the market there is a greater gap between supply and demand. Therefore, large-diameter, composite materials, high-performance and high reliability of the pipe fittings production enterprises will gather in China’s industrial metal pipe the most competitive areas. Industrial metal fittings industry regional agglomeration characteristics are obvious, mainly in the east and north China, the main industrial agglomeration area has four: Jiangsu Jiangyin, Yangzhou area; Hebei Cangzhou, Langfang area; Liaoning Yingkou, Fuxin area; Zhejiang Wenzhou area. The following are the number of competition from the industry, industry growth rate, exit barriers, competition analysis of the existing competition in the enterprise. Analysis of available, the industry is in the mature stage, the quality of the industry as a whole uneven, most enterprises focus on low-end products, price war, the existing business competition. Table 2: Competitive analysis of existing metal pipe fittings IndicatorsPerformanceConclusionNumber of competitorsNumerous enterprise data, mainly small and medium-sized enterprises, the total number of more than 4000 enterprises, the annual income of more than 20 million yuan about 200 enterprises, listed companies only one.Competitors are numerous Industry growth rateIn recent years, industry production and sales are rising trend year by year, average annual growth rate at about 15%, but growth downward.Industry growth rate is higher, but growth showed a trend of decline Exit barriersIndustrial metal pipe fitting belongs to the manufacturing industry, the fixed cost is greater.Large exit barriers The degree of homogeneityDomestic industrial metal pipe fittings production enterprise on a smaller scale, most companies focus on low-end products, high-end products focused on leading enterprises, high-end products created value accounts for more than 60% of the whole industry. Low degree of product homogeneity CompetitivelevelLow-end products market competition is given priority to with price war; High-end product market competition is given priority to with technology and brand. Higher competition level With the international industrial gradient transfer, manufacturing has been to China, India and other developing countries. Therefore, foreign companies on the domestic industrial metal pipe fittings business a smaller potential threat. At the same time, China’s industrial metal pipe industry has matured, new entrants into the cost of a higher threshold. As a result, the potential threat to China’s industrial metal pipe fittings is small. Industrial metal pipe fittings is an essential part of industrial pipe, there is no substitute products; but with the downstream industry of industrial metal pipe product quality, material and other requirements, there are high-end products in the low-end products instead. Third, the industrial metal pipe industry market prospects The downstream applications of industrial metal fittings are extensive and involve the major industries of the national economy. Among them, petrochemical, nuclear power, thermal power, shipbuilding and military industries are the representative industries for their applications, especially the application of special metal fittings in these industries. . Through the analysis of industrial metal pipe fittings in several key industries and demand forecast application of the foreseeable future market prospects. 1. petrochemical industry Industrial pipe and pipe fittings as a mass transfer equipment in the pipe equipment, oil refining, chemical equipment for an important segment of the field. Commonly used industrial metal pipe materials are stainless steel, carbon steel, etc., are widely used in oil refining, chemical production in the pipeline connection, the other materials are titanium, aluminum, nickel, zirconium, etc., usually selected for specific use tube material . In recent years, refining, petrochemical enterprises to increase production capacity to intensify the transformation of large-scale, new large-scale oil refining, chemical engineering projects have been prepared by the localization of oil hydrogenation equipment and successively developed ethylene cracking and subsequent processing of key equipment Pulling, China’s refining, chemical production equipment manufacturing industry is growing rapidly. As the long-term operation of petrochemical equipment in high temperature or low temperature, high pressure, strong corrosion and other special circumstances, special metal materials in the petrochemical equipment in the proportion of demand for high, the current petrochemical industry, industrial metal fittings in the proportion of special metal pipe is about 50 / RTI & gt; With the increase in the proportion of poor use of crude oil, hydrogenation technology to promote the application of long-distance oil and gas pipeline construction, new coal chemical industry to accelerate the development trend of the application of special metal fittings will be more and more widely. The traditional single anti-corrosion technology and materials can not meet the needs of the development of oil and gas fields, therefore, oil and gas fields on the high steel grade, high corrosion resistance, low temperature and other pipe needs continue to increase. As the oil and gas field medium composition, pressure, temperature and other large difference between the corrosion environment, a large number of high corrosion resistance alloy will cause increased production costs and corrosion of the waste of alloy materials, so the development of both oil and gas fields to ensure safety and transportation, A new type of bimetallic composite materials has become the focus of the major oil and gas companies, bimetallic composite pipe and pipe products, the market demand is also the market demand is very high. getting bigger. “Petroleum and chemical industry,” second five “plan” forecast, “second five” during the industry average growth rate will remain at 10% or more to petrochemical industry, industrial metal pipe industry, the average annual growth rate of 10% and special metal pipe fittings A conservative estimate than 50% in 2015, China’s petrochemical industry, industrial metal pipe fittings and special metal pipe market size will reach 40 billion yuan and 20 billion yuan. 2. coal chemical industry China’s coal reserves are rich, accounting for 11.60% of the world’s total coal reserves. Since the founding of the country’s primary energy production and consumption of coal in the long-term ratio of more than 70%. According to the Ministry of Land and Resources data, as of the end of 2010, China’s total coal resources forecast of about 5.6 trillion tons, of which 1340.83 billion tons of resources have been identified. Relying on the rich coal resources, China’s coal chemical industry has been a good development. “Eleventh Five-Year” period, China’s coal chemical engineering construction total investment of about 500 billion yuan, China’s nitrogen fertilizer, calcium carbide, coke and other traditional coal chemical products production capacity, continue to rank in the world. At the same time, with the role of oil substitution of new coal chemical technology has made great progress, driven by high oil prices, the emerging coal chemical industry is the emergence of rapid development momentum. “Twelfth Five-Year” period of coal chemical industry investment will be China’s coal chemical metal pipe fittings and special metal pipe to bring new market demand. 3. nuclear power industry In the construction of nuclear power, fluid gas delivery requires the use of a large number of industrial pipelines, pipe connections to use a large number of pipe fittings. The medium of the nuclear tube is mainly composed of saturated steam, condensed water, radioactive water vapor heavy water, irradiation corrosive substance, radioactive medium, dilute sulfuric acid and lye, carbon dioxide, sodium, helium, oil and vacuum. Special, complex, harsh, coupled with a large amount of large, demanding, so a large number of nuclear power fittings using nickel-based alloys, titanium, zirconium and other special metal materials. In recent years, China’s nuclear power infrastructure investment accelerated. According to China Electricity Council statistics, in 2011 China’s nuclear power infrastructure investment reached 74 billion yuan, from 2007 to 2011, the average annual growth rate of nuclear power investment of more than 70%. From the perspective of China’s energy demand and supply situation, the development of nuclear power is an inevitable choice to ensure energy security in China. In October 2012, the State Council approved the “Mid- and Long-Term Development Plan for Nuclear Power (2011-2020)”, Kilowatts of nuclear power installed capacity of the target, under construction nuclear power installed capacity will be slightly more than 20 million kilowatts is expected in 2015 China’s nuclear power with industrial metal fittings and special metal fittings market capacity will reach 2.9 billion and 1.7 billion. The market of nuclear power fittings is pided into two parts: pipe fittings and pipe fittings. Many enterprises make petrochemical and thermal power market for a long time. The production technology is mature and it is easier to enter the nuclear power market after upgrading according to the nuclear power quality assurance system. At present, there are nearly 20 domestic and foreign manufacturers of pipe fittings which are qualified to participate in nuclear power projects. Chinese and foreign enterprises basically share half of the country, but foreign integrated group companies possess nuclear island main steam piping and fittings experience, Grade pipe market, the vast majority of domestic enterprises can only provide the nucleus level 2, level 3 of pipe fittings. 4. thermal power industry Thermal power plants require a significant amount of pressure piping and fittings to carry high-temperature fluids. In order to improve the efficiency of coal-fired power generation and protect the ecological environment, China has vigorously developed super-critical thermal power units with low coal consumption, low pollution and high efficiency in recent years. Thermal power units Industrial metal pipe fittings, especially those used in the four major thermal power plant pipe (main steam pipe, reheat steam pipe hot section, reheat steam pipe cold section and high pressure water supply pipe) to be subject to long-term high temperature and high pressure steam and high-speed fluid substances Erosion corrosion, the quality of the four major pipeline operation is essential. With the development of large-capacity, high-parameter, ultra-supercritical and water-saving environment-friendly units, the four large pipe fittings are required to increase the caliber and have better performance of high temperature resistance, high pressure resistance and corrosion resistance. , The use of P91, P92, P22 and WB36 have excellent heat resistance, high pressure performance of special metal materials, special metal pipe fittings are used for a large number of supercritical, supercritical parameters such as thermal power units in the pipeline. 5. shipbuilding industry As an important component of marine pipeline system, industrial metal pipe fittings are widely used in ships and offshore engineering equipment, and play the role of fluid and gas medium transportation. By the impact of the global economic crisis lag, the international shipping market downturn, China’s shipbuilding industry, industrial output growth slowed, but overall to maintain growth. The marine engineering equipment industry, as the material and technical foundation for the development and utilization of marine resources, has become the most promising field in the field of shipbuilding in the context of the increasing importance of continental shelf resources in China. Marine and marine engineering in the fluid, gas medium, including crude oil, chemical gases and other corrosive substances, while the ship metal pipe fittings exposed to long-term humid air, marine equipment, pipe fittings need to be soaked in seawater, so strong corrosion resistance Of the special metal materials such as titanium, nickel-based alloys have been gradually applied to ship metal pipe fittings, especially marine equipment, metal pipe manufacturing. 6. the military industry Military industry is a typical high-end equipment manufacturing industry, not only assume the transformation of China’s manufacturing industry an important task, but also China’s core science and technology source and driving force, is the future independent intellectual property rights and patents, the main creator. Military equipment, including military aircraft, aircraft carriers, nuclear submarines, military ships, tanks and so on. Military industry is the earliest use of special metal materials industry, and then gradually into the special metal materials, chemical, civil nuclear power, thermal power, ships and other fields.Pipe fittings as an important part of the military equipment pipeline system, but also a large number of special metal materials used to support military equipment to high-tech, modern direction. Source: Zhejiang wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

Weldolet (Welding Outlet) is the most common of all branch connections, and is welded onto the outlet pipe. The ends are bevelled to facilitate this process, and therefore the weldolet is considered a butt-weld fitting. Weldolet (Welding Outlet) is designed to minimize stress concentrations and provide integral reinforcement. manufactured to meet your specific reinforcement requirements. What is a weldolet (Welding Outlet)? A Weldolet is commonly known on drawings as a WOL and makes a 90° branch connection. It comes in full size or reducing for a straight piece of pipe. A weldolet is designated by the run length by the branch length. For example a 6-inch weldolet on a 19-inch pipe would be a 19×6 Weldolet. Dimensions Weldolet Size on Size -STD- MSS SP97 DIMENSIONS NPS 1/2 TO 24NPSABCD1/23/4 19.051.3/8 34.9315/16 23.815/8 15.883/47/8 22.231.5/8 41.281.3/16 30.1613/16 20.6411.1/16 26.992 50.801.7/16 36.511.1/32 26.191¼1¼ 31.752.3/8 60.31.3/4 44.451.3/8 34.931½1.5/16 33.342.7/8 732 50.801.5/8 41.2821½ 38.103½ 88.902.9/16 65.092.1/16 52.392½1.5/8 41.284.1/16 103.193 76.202.7/16 61.9131.3/4 44.454.13/16 122.243.11/16 93.663.1/16 77.793½2 50.805.3/8 136.533.7/8 98.433.9/16 90.4942 50.806 152.404.3/4 120.654 101.6052¼ 57.157.1/8 180.985.9/16 141.295.1/16 128.5962.3/8 60.38½ 215.906.11/16 169.866.1/16 153.9982.3/4 69.8510.3/8 263.538.11/16 220.667.15/16 201.61103.1/16 77.7912.9/16 319.0910.13/16 274.6410 254.00123.3/8 85.7314.7/8 377.8312.13/16 325.4412 304.80143½ 88.9016.1/8 409.5814.1/16 357.1913¼ 336.55163.11/16 93.6618¼ 463.5516.1/16 407.9915¼ 387.35184.1/16 103.1920.3/4 527.0518.5/8 473.0817¼ 438.15204.5/8 117.4823.1/16 585.7920.1/16 509.5919¼ 488.95245.3/8 136.5327.7/8 708.0325.1/8 638.1823¼ 590.55NPSABCD General notes: Dimensions: Top Row in Inches / Bottom Row in millimeters. Root Gap – X – “Space” for welding the O’let is raised off the run pipe to establish proper weld gap by placing spacers, e.g. welding rods, under the fitting. This provides a uniform welding gap between the curvature of the run and base of fitting. L = Dimensions Center Line of Run Pipe + X (Root Gap) + A (height of Weldolet). Bevelled Ends ASME B16.9 and B16.25. Source comes from Bonney Forge (except the sizes in millimeters). Weldolet is a registered name. Another often used name is Welding Outlet.

What is threadolet (threaded outlet) ? A threadolet is the same basic design as a “weldolet.” However the main difference is the fitting has a female threaded connection to mate to the branch connection. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe. It typically is in the size range of 1/2″ to 2″ and is welded over a hole either drilled or burned in the pipe. You use a “weldolet” when you want to weld a pipe or fitting directly to the branch fitting and a “threadolet” when you want to screw the connecting pipe or fitting (e.g. valve) to the branch connection. I believe there is a ANSI standard for the dimensions and pressure rating of these type of fitting. Depending of the relative size of the olet and the main pipe run the affect can vary from no affect to causing the header to bow or warp due to the heating and cooling of the weld. A good run of thumb is to never use an olet that is larger that 1/2 the size of the main pipe run. Size in this case being the nominal size. Dimensions Reducing Thredolet – MSS SP97 CLASS 3000NPSABC1/21 25.401.13/32 35.7115/16 23.813/41.1/16 26.981.23/32 43.651.5/32 29.3611.5/16 33.332 50.801.7/16 36.511¼1.5/16 33.332.9/16 65.081.3/4 44.451½1.3/8 34.922.27/32 72.232 50.8021½ 38.103.15/32 88.102.9/16 65.082½1.13/16 46.034.1/16 103.183 76.2032 50.804.13/16 122.233.11/16 93.663½2.1/8 53.9755.7/32 132.554 101.642¼ 57.155.31/32 151.604.3/4 120.6552.5/8 66.677.5/16 185.735.9/16 141.2862.3/4 69.858.5/8 219.076.11/16 169.86NPSABC CLASS 6000NPSABC1/21¼ 31.751.23/32 43.653/4 19.053/41.7/16 36.511.61/64 49.601 25.4011.9/16 39.682.7/16 61.911.5/16 33.331¼1.5/8 41.272.23/32 69.051½ 38.101½1.11/16 42.863¼ 82.551.15/16 49.2122.1/16 52.384.1/32 102.392.3/4 69.85NPSABC General notes: Dimensions: Top Row in Inches / Bottom Row in millimeters. Root Gap – X – “Space” for welding the O’let is raised off the run pipe to establish proper weld gap by placing spacers, e.g. welding rods, under the fitting. This provides a uniform welding gap between the curvature of the run and base of fitting. Threaded Ends are in accordance with ASME B1.20.1. Design per MSS SP-97. Source comes from Bonney Forge (except the sizes in millimeters). Thredolet is a registered name. Another often used name is Threaded Outlet.

What is an elbolet ? Elbolet is used on 90° Long Radius Elbows (can be manufactured for Short Radius Elbows) for thermowell and instrumentation connections. Available butt-weld to meet specific reinforcement requirements, and 3000# and 6000# classes for Socket Weld and threaded applications. An Elbolet is used on 90° long radius elbows, short radius elbows and can be used on 180° returns. However, an Elbolet on a short radius elbow is not used often. It typically is used for Thermowell and instrumentation connections but can be used as a drain connection when room isn’t available for using a Weldolet. The Elbolet is available with buttweld, socketweld or threaded connections. Outlet is used widely abroad in recent years, It is used to connect the reinforced fittings. It can replace the reducing tee, reinforce plate and reinforced pipe. It is used widely more and more in high pressure high temperature large diameter and thick wall pipe. As it is reliability, cheap, simple, good for flow, seriation, standardization and choose easily. It takes place of traditional connecting ways. The body of outlets is made in excellent Forgings. The material is same as pipe’s. We can make outlet from Carbon steel, Alloy steel and Stainless steel. branch or other fittings such as nipple thread plug, Instrument and valve by Butt Welding, Socket Welding and Threaded. MaterialGradeCarbon Steel ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70 Stainless SteelASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L Alloy Steel  ASTM / ASME A/SA 182 F12, A182 F11, A182 F22, A182 F5, A350 LF2, A350 LF3 Elbolet

What is a sockolet (Socket Weld Outlet)? A Sockolet is the same basic design as a “weldolet” or “threadolet” where the major difference is that a Sockolet has a socket for welding versus a buttweld connection that a Weldolet has. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe. Sockolets are available in Class 3000, 6000 and 9000 for high pressures. What is the difference between a weldolet and a sockolet? The weldolet and the sockolet both have a run end and a branch end. The run end connects to the larger diameter pipe, and the branch end connects to the smaller diameter pipe. The connection to the run pipe is a fillet weld for both the weldolet and the sockolet. They differ, however, at the connection to the branch pipe. The weldolet has a bevelled end to butt weld to the branch pipe (which will also have a bevelled end), whereas the sockolet has a socket into which a plain end branch pipe is inserted, then fillet welded together. Dimensions Reducing Sockolets – MSS SP97 CLASS 3000NPSABCDE1/21 25.401.13/32 35.7129/32 23.010.622 15.809/16 14.283/41.1/16 26.981.23/32 43.651.5/32 29.360.824 20.939/16 14.2811.5/16 33.332 50.81.7/16 36.511.049 26.6425/32 19.841¼1.5/16 33.332.9/16 65.081.3/4 44.451.380 35.053/4 19.051½1.3/8 34.922.27/32 72.232 50.81.610 40.893/4 19.0521½ 38.13.15/32 88.102.9/16 65.082.067 52.5013/16 20.632½1.9/16 39.684.1/16 103.183 76.22.469 62.713/4 19.0531.3/4 44.454.13/16 122.233.11/16 93.663.068 77.9315/16 23.813½1.11/16 42.865.3/8 136.524.7/16 112.713.548 90.1211/16 17.4641.7/8 47.625.31/32 151.604.3/4 120.654.026 102.261.1/16 26.9852.5/8 66.677.5/16 185.735.9/16 141.285.047 128.191.11/32 34.1362.3/4 69.858.5/8 219.076.11/16 169.866.065 154.051.13/32 35.71X = Min. 1/16 (1.6 mm) CLASS 6000NPSABCDE1/21¼ 31.751.23/32 43.653/4 19.050.466 11.847/8 22.223/41.7/16 36.511.61/64 49.601 25.40.614 15.607/8 22.2211.9/16 39.682.7/16 61.911.5/16 33.330.815 20.7015/16 23.811¼1.5/8 41.272.23/32 69.051½ 38.11.160 29.4613/16 20.631½1.11/16 42.863¼ 82.551.15/16 49.211.338 33.997/8 22.2222.1/16 52.384.1/32 102.392.3/4 69.851.689 42.901.3/16 30.16X = Min. 1/16 (1.6 mm) General notes: Dimensions: Top Row in Inches / Bottom Row in millimeters. Bottoming Clearance – X – The purpose for the bottoming clearance in a Socket Weld is usually to reduce the residual stress at the root of the weld that could occur during solidification of the weld metal, and to allow for differential expansion of the mating elements. Socket dimensions are in accordance with ASME B16.11. Design per MSS SP-97. Source comes from Bonney Forge (except the sizes in millimeters). Sockolet® is a registered name. Another often used name is Socket Weld Outlet.

Pn on behalf of the nominal pressure, is steel elbow product under the reference temperature said crushing strength, is the production of steel pipe and accessories of the strength of the standard. Such as nominal pressure for 2. SMPa, can remember for PN2. 5 mpa. Due to butt weld bend material is different, the reference temperature is different also, cast iron and copper base temperature is 120 ℃, the steel base temperature is 200 ℃, the alloy steel reference temperature is 250 ℃. Products under the reference temperature close to room temperature compressive strength, compression strength of materials so the nominal pressure is close to room temperature compressive strength. Ps test pressure is to test steel bend and accessories mechanical strength at room temperature and the pressures of strict performance standards. Butt welding steel elbow and steel pipe accessories before they go out, must carry out pressure test, check the strength and sealing, and products for strength test pressure is called the strength test, ps said with symbols, such as the test pressure of 4 mpa, remember to ps4MPa. From a security perspective, the test pressure must be greater than the nominal pressure, testing pressure is generally 1.5 ~ 2 times of the nominal pressure. Pt said work pressure refers to the working pressure of the steel pipe inner flow medium.  Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)

What is a nipoflange? A Nipoflange is used in the pipe industry like a weldolet or a nipolet for a 90° branch connection. A Nipoflange is a combination of weldolet, nipolet and flange. Two different pipe branch connections On the run pipe side  a nipoflange is designed like a weldolet. That means the branch connection on the run pipe side is a welding connection. On the other side there it has a flange connection. The flange connection can be designed according to customers requirements (acc. To DIN or ANSI). Technical data Of Nipoflange On request further technical informations about nipoflanges are available. Other terms for nipoflange are weldoflange or flangeolet. Forged material Of Nipoflange A nipoflange similar to ANSI B 16.9 or MSS-SP 97 is manufactured from  forged material. That means a nipoflange is a forged fitting without welding seam. Standard and special materials Of Nipoflange Anthermo is able to deliver nipoflanges in standard materials. Upon request special materials are also deliverable. Stainless Steel Nipoflange ASTM / ASME SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347 H Duplex Steel Nipoflange ASTM / ASME SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61. Carbon Steel Nipoflange ASTM / ASME A 105. ASTM / ASME A 350 LF 2. Alloy Steel Nipoflange ASTM / ASME A 182 GR F 5, F 9, F 11, F 12, F 22, F 91. Nickel Alloy Nipoflange ASTM / ASME SB 564 UNS 2200 ( NICKEL 200 ), UNS 4400 (MONEL 400 ), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276 ) Nipoflange ASTM / ASME SB 160 UNS 2201 (NICKEL 201 ) ASTM / ASME SB 472 UNS 8020 ( ALLOY 20 / 20 CB 3 )