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  • Longitudinally Submerged Arc Welded Steel pipes, LSAW

    Mainly as a field gathering pipe and internal high-pressure natural gas pipeline of small-caliber, long-distance pipelines for oil and gas a small number, the vast majority of long-distance pipeline is the use of high-frequency straight seam welded pipe (ERW), spiral submerged arc welded pipe (SSAW), LSAW steel pipe (LSAW) three.

    Get Price
  • Automatic welding technologies for long-distance

    2014-10-1u2002·u2002In recent years, automatic welding, high in automatic degree, low in labor intensity, good in welded joint appearance shape, fast in welding speed, high in first-time welding pass rate, has been widely applied,,,,, in on-site welding of long-distance oil/gas pipelines intensity etc. Limited by the pipeline routes, welding techniques, equipment volumes, etc., the pipeline automatic welding ...

    Get Price
  • Our technical support for ERW steel pipe, ERW steel pipe ...

    LSAW pipe (LSAW) is a single plate as raw material, steel in the mold or molding machine pressure (volume) into the tube, using double-sided submerged arc welding method and Expanding from the produce. In the construction of high-strength, high toughness, high-quality long-distance gas pipeline, most of the required large diameter thick wall ...

    Get Price
  • Working pressure for long-distance oil and gas pipeline

    Working pressure for long-distance oil and gas pipeline. Working pressure and diameter of oil and gas pipelines, are first identified in pipeline design framework technical parameters. Working pressure directly determine the number of pumping stations and compressor stations, steel consumption in the power station unit and piping.

    Get Price
  • Introduction of Weld Seam of Submerged Arc Welding ...

    2020-1-19u2002·u2002tube manufacturing technology to this day, we should conduct comprehensive and correct evaluationand comparison,andre-recognize theproblem of longspiral welds. First,since the

    Get Price
  • Avoid Spiral Steel Tube Rupture in Long Pipeline

    2014-7-1u2002·u2002Spiral pipe with big diameter, high strength and practical features make it the first choice of many long-distance pipeline. With the spiral steel pipe rupture has a method for base metal and weld flattening test, guided bend test, a number of indicators of …

    Get Price
  • General Welding Guidelines - MCAA

    2016-4-5u2002·u2002When welding with a gas-shielded welding process, the area in which welding is being done shall be protected from drafts which can cause loss of the gas shield. Wind velocities in excess of 5 mph are high enough for this to happen, resulting in surface oxidation of the weld metal, oxide contamination

    Get Price
  • What are the technical requirements for pipeline valves?

    2020-5-7u2002·u2002Long-distance pipelines require valve performance test. Long-distance pipelines are affected by geographic and natural conditions, and must withstand the …

    Get Price
  • Longitudinally Submerged Arc Welded Steel pipes, LSAW

    Mainly as a field gathering pipe and internal high-pressure natural gas pipeline of small-caliber, long-distance pipelines for oil and gas a small number, the vast majority of long-distance pipeline is the use of high-frequency straight seam welded pipe (ERW), spiral submerged arc welded pipe (SSAW), LSAW steel pipe (LSAW) three.

    Get Price
  • Automatic welding technologies for long-distance

    2014-10-1u2002·u2002In recent years, automatic welding, high in automatic degree, low in labor intensity, good in welded joint appearance shape, fast in welding speed, high in first-time welding pass rate, has been widely applied,,,,, in on-site welding of long-distance oil/gas pipelines intensity etc. Limited by the pipeline routes, welding techniques, equipment volumes, etc., the pipeline automatic welding ...

    Get Price
  • Our technical support for ERW steel pipe, ERW steel pipe ...

    LSAW pipe (LSAW) is a single plate as raw material, steel in the mold or molding machine pressure (volume) into the tube, using double-sided submerged arc welding method and Expanding from the produce. In the construction of high-strength, high toughness, high-quality long-distance gas pipeline, most of the required large diameter thick wall ...

    Get Price
  • Working pressure for long-distance oil and gas pipeline

    Working pressure for long-distance oil and gas pipeline. Working pressure and diameter of oil and gas pipelines, are first identified in pipeline design framework technical parameters. Working pressure directly determine the number of pumping stations and compressor stations, steel consumption in the power station unit and piping.

    Get Price
  • Introduction of Weld Seam of Submerged Arc Welding ...

    2020-1-19u2002·u2002tube manufacturing technology to this day, we should conduct comprehensive and correct evaluationand comparison,andre-recognize theproblem of longspiral welds. First,since the

    Get Price
  • Flash butt welding of pipe - The Fabricator

    2002-4-15u2002·u2002The welding head is lowered over the joints to be welded, and the clamps are engaged. This holds the pipe and aligns the pipe ends. Pipe ends are cleaned before the welding commences. When the weld is complete, a flash remover is inserted into the weld area on a stinger rod, and the internal flash is removed while the metal is still soft.

    Get Price
  • Avoid Spiral Steel Tube Rupture in Long Pipeline

    2014-7-1u2002·u2002Spiral pipe with big diameter, high strength and practical features make it the first choice of many long-distance pipeline. With the spiral steel pipe rupture has a method for base metal and weld flattening test, guided bend test, a number of indicators of …

    Get Price
  • General Welding Guidelines - MCAA

    2016-4-5u2002·u2002When welding with a gas-shielded welding process, the area in which welding is being done shall be protected from drafts which can cause loss of the gas shield. Wind velocities in excess of 5 mph are high enough for this to happen, resulting in surface oxidation of the weld metal, oxide contamination

    Get Price
  • What are the technical requirements for pipeline valves?

    2020-5-7u2002·u2002Long-distance pipelines require valve performance test. Long-distance pipelines are affected by geographic and natural conditions, and must withstand the …

    Get Price
  • Assessment of Polyethylene Welds - PIPA

    2020-11-27u2002·u2002PMBWELD 301 (Butt Welding Polyethylene Pipelines). 1.4 Long Term and Short Term Testing This guideline focuses on so called short term testing of PE welds primarily aimed at field based or rapid turnaround test options typically used as QA/QC measures. The purpose of long and short term testing is often misunderstood and hence the following ...

    Get Price
  • Cured-in-Place Pipeline Automated Welding Solutions

    2021-8-26u2002·u2002Automated Welding Solutions. Automated solutions for cured-in-place pipeline (CIPP), rehabilitation tube welding and sewing solutions have produced millions of linear feet worldwide. These fully automated solutions will manufacture liner for restoring structural integrity of pipeline. CIPP is used in many applications including sanitary sewers ...

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  • Automatic welding technologies for long-distance

    2014-10-1u2002·u2002In recent years, automatic welding, high in automatic degree, low in labor intensity, good in welded joint appearance shape, fast in welding speed, high in first-time welding pass rate, has been widely applied,,,,, in on-site welding of long-distance oil/gas pipelines intensity etc. Limited by the pipeline routes, welding techniques, equipment volumes, etc., the pipeline automatic welding ...

    Get Price
  • Electric Heat Tracing of Very Long Pipelines

    2017-2-8u2002·u2002severe as 100% along both sides of the tube. If the pipe is corrosion protected, this welding will require repair to the coating Tight bends require the use of pull boxes to allow the cable to leave the tube and then re-enter the tube. These boxes are also required where two cables need splicing together.

    Get Price
  • AMI Orbital Welding Equipment In Stock, Sales and Hire

    AMI's orbital pipe and tube welding equipment is used primarily in power plants, refineries, offshore oil platforms, boiler construction, ship-building and similar industries. The equipment joins pipes to each other and to fittings using filler wire. Models range from those that weld small diameter joins (1 1/2') all the way up to those that ...

    Get Price
  • Introduction of Weld Seam of Submerged Arc Welding ...

    2020-1-19u2002·u2002tube manufacturing technology to this day, we should conduct comprehensive and correct evaluationand comparison,andre-recognize theproblem of longspiral welds. First,since the

    Get Price
  • Pipes General - Types Lengths and Ends of Pipe

    2021-9-28u2002·u2002The tube is rotated through 90° for each pass through the plug mill to ensure roundness. The tube is then passed through a reeling mill and reducing mill to even out the wall thickness and produce the finished dimensions. The tube is then cut to length before heat treatment, final straightening, inspection, and hydrostatic testing.

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  • SPECIFICATION FOR PIPEWORK WELDING, INSPECTION,

    2015-3-2u2002·u200218.10.2011 Page 1 of 111 Pipework Welding, Inspection, Supporting And Testing - Rev C . SPECIFICATION FOR PIPEWORK . WELDING, INSPECTION, SUPPORTING AND

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  • Alfa Laval LKGG-1 and LKGL-1 In-Line Sight Glass

    2021-3-19u2002·u2002less steel sh ield tube Þtted with a welding union at each end. A special glass tube i s Þxed in the shield tube to assure it is unaffected by potential s tresses in the pipelines. The LKGL-1 is similar to LKGG-1 but has a sta inless steel light Þtting welded onto the shield tube …

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  • Failure Analysis on Leakage of the Circumferential Weld of ...

    Nowadays, the welding quality of circumferntial welds is the main influencing factor of the service behaviors of long-distance transport pipeline, and the accidents caused by the circumferential welding defects have get extensive attention. To figure out the leaking reason of circumferential weld of the steel 20 buried pipeline, with macro inspection, nondestructive testing, physical and ...

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  • Min spacing between 2 welds - Boiler and Pressure Vessel ...

    2012-9-20u2002·u2002Min spacing between 2 welds5. Min spacing between 2 welds. 5. I have noticed that many clients ask for a min weld spacing of 1.5 - 2 time the thickness of the shell. Although ASME Sec VII Div.1 mentions about 1.5 time the thickness there is no hard and fast rule to maintain this.

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  • APTec – Allied Pipeline Technologies, Inc.

    APTec provides complete supply and installation of plastic pipe systems. In conjunctions with our HDPE pipe liner work we maintain a large fleet of thermal fusion-welding machines for HDPE, ranging from 2' (50mm) through 48' (1200mm). Our experience fusion-welding long distance pipelines means we can consistently and safely produce quality ...

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  • Industrial Pipe & Tube Supply Florida

    Finned Tube. A popular tube configuration for heat exchangers is a finned tube. By welding small pieces of metal or 'fins' to the OD of the heat exchanger tubing, the total surface area of the tubes can be increased. This increased surface area increases the ability of the tube to transfer heat from the media inside the tubing to the ...

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  • Electric Heat Tracing of Very Long Pipelines

    2017-2-8u2002·u2002severe as 100% along both sides of the tube. If the pipe is corrosion protected, this welding will require repair to the coating Tight bends require the use of pull boxes to allow the cable to leave the tube and then re-enter the tube. These boxes are also required where two cables need splicing together.

    Get Price
  • AMI Orbital Welding Equipment In Stock, Sales and Hire

    AMI's orbital pipe and tube welding equipment is used primarily in power plants, refineries, offshore oil platforms, boiler construction, ship-building and similar industries. The equipment joins pipes to each other and to fittings using filler wire. Models range from those that weld small diameter joins (1 1/2') all the way up to those that ...

    Get Price
  • Orbital Welding Joint Preparation: Pipe End Preparation ...

    2020-3-24u2002·u2002Basic Pipe Welding Joint Preparation. Regardless of the process to be used, pipe welding—and all welding for that matter—begins with the removal of paint, rust, grease, anodizing, mill coat, and any other foreign materials that could compromise the weld from the surfaces to be welded. The tool that is most often used for this is a grinder.

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  • Oil Pipeline Characteristics and Risk Factors ...

    2011-12-9u2002·u2002table below, the most important decades for the construction of the pipelines currently in service were the 1950s (22% of the total in service) and the 1960s (23%). The development of long-distance, large-diameter pipelines during and after World War II placed the pipeline industry in a position to fuel the post-War boom.

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  • 3 Effective NDT Ultrasonic Pipeline & Piping Inspection ...

    Regardless of the infrastructure, it's important to choose NDT UT products that conform to the shape and welding type of the pipelines. When it comes to pipeline NDT, the three most important techniques to keep in mind include long-range ultrasonic testing (LRUT), phased array ultrasonic testing (PAUT), and …

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  • History of Gas and Oil Pipelines without Pic

    2019-7-31u2002·u20021901 to 1925 –Pipelines • 1904 Pure Oil built a 300 mile 5-inch kerosene line from Western PA to Marcus Hook • 1904 first major gas transmission pipeline, 16'diameter • 1904 The state of Texas had 513.5 miles of crude pipelines • 1907 Transcaucasus Railroad put into operation a 550 mile long kerosene pipeline between Baku and Batum

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  • Tube Bending Design Guide

    Benefits of Tube Bending. When we discuss tube we are, of course, referring to rigid metal tube (or pipe) normally manufactured from mild steel, stainless steel, aluminium or copper, and normally circular in cross section, although square or rectangular (box) section is possible and even oval shapes or more complex sections can be bent.

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  • Minimum Weld Spacing - American Welding Society

    2002-4-10u2002·u2002Example: (20'-00' of 30' pipe with a 15' long piece welded in the middle of it) By pipewelder_1999 Date 03-29-2002 12:44 I too am interested in this response. I have heard many rules similar to this with no backing in the code or specifications. ... The distance helps to prevent a failed weld from propagating into the next adjacent weld should ...

    Get Price
  • General Welding Guidelines - MCAA

    2016-4-5u2002·u2002When welding with a gas-shielded welding process, the area in which welding is being done shall be protected from drafts which can cause loss of the gas shield. Wind velocities in excess of 5 mph are high enough for this to happen, resulting in surface oxidation of the weld metal, oxide contamination

    Get Price
  • Used Weld Overlay & Cladding Auto Systems

    Used automatic Weld Overlay Cladding systems are now affordable to worldwide businesses . Corrosion or abrasion is an issue in many heavy duty industrial metalworking sectors. If you have identified areas that are at risk from wear, a specific area or whole component, take 5 minutes to read our Blog on weld cladding applications and the specialised used overlay equipment we buy and sell.

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  • FAQ - husteel-group.com

    ERW steel pipe is mainly used in natural gas, refined oil, crude oil, pulp and other terrestrial long-distance pipelines. UOE steel pipes are mainly used in high-voltage submarine long-distance pipelines, alpine areas, land two, three, four types of areas.

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  • 1' x 12' Sanitary, 304 Stainless Steel, Tri Clamp Spool ...

    S pools, also known as sanitary spools, are pre-fabricated lengths of stainless tubing with Tri Clamp fittings welded to both ends for customer convenience. These can be used in conjunction with other Tri Clamp fittings, Tri Clamp Clamps and Silicone Gaskets (all sold separately), allowing the user to easily manufacture sanitary pipelines without the need for costly on-site welding and ...

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  • en.huikepipe.com - Hebei Huike Steel Pipe Co., Ltd.

    Hebei Huike Steel Pipe Co., Ltd. Hebei Huike Steel Pipe Co., Ltd. is located in Hope New District, Mengcun Hui Autonomous County, Cangzhou City, which is the 'China Capital of Elbow Fittings' with beautiful scenery and outstanding people. It is bordered by Tianjin and Beijing in the north, Binhai New Area and Huanghua Port in the east, Beijing ...

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  • Difficult to Pig Pipelines - AUCSC

    2012-11-16u2002·u2002•The distance between two pig traps is a variable and must be determined for each specific pipeline. • Some considerations: – Wear on the Pigs – Pipeline Product •The following pipeline lengths are not uncommon; •Natural Gas pipelines 50-100 miles between traps •Refined Products Pipelines 100-150 miles between traps

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  • Welding Pig - Piggable Plug - iNPIPE PRODUCTS™

    iNPIPE PRODUCTS™ welding pig design utilises the uniquely patented tyre design to provide proven reliability. Systems from 6″ up to 48' have been designed, manufactured and progressed through full factory acceptance testing. The piggable plugs are provided with 2 sets of inflatable tyres to provide fail-safe proven performance and reliability and ensure that the differential breakout ...

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  • Minimum Weld Spacing - American Welding Society

    2002-4-10u2002·u2002Example: (20'-00' of 30' pipe with a 15' long piece welded in the middle of it) By pipewelder_1999 Date 03-29-2002 12:44 I too am interested in this response. I have heard many rules similar to this with no backing in the code or specifications. ... The distance helps to prevent a failed weld from propagating into the next adjacent weld should ...

    Get Price
  • ERW/HFW/HFI Welded steel pipe according with ALP 5L

    ERW/HFW/HFI Welded steel pipe according with ALP 5L X56. Application: ERW/HFW/HFI Welded Steel Pipe Used for construction of long distance pipelines for combustible liquids and gases, nuclear station pipelines, heating system pipelines, general-purpose pipelines, vessels manufacturing, mechanical engineering and instrumental engineering.

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  • Production of tubes and pipes - SlideShare

    2014-3-18u2002·u20021. Background 1.4 Technology used for the production for tubes and pipes CPE technology used for the production for seamless pipe Fig.12 CPE process Plug Mill technology used for higher dimension seamless tube. High frequency Induction welding used for ERW pipes and tubes. Fig.10 plug mill Fig.11 HFIW used for ERW pipe 9.

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  • Longitudinally Submerged Arc Welded Steel pipes, LSAW

    Mainly as a field gathering pipe and internal high-pressure natural gas pipeline of small-caliber, long-distance pipelines for oil and gas a small number, the vast majority of long-distance pipeline is the use of high-frequency straight seam welded pipe (ERW), spiral submerged arc welded pipe (SSAW), LSAW steel pipe (LSAW) three.

    Get Price
  • Automatic welding technologies for long-distance

    2014-10-1u2002·u2002In recent years, automatic welding, high in automatic degree, low in labor intensity, good in welded joint appearance shape, fast in welding speed, high in first-time welding pass rate, has been widely applied,,,,, in on-site welding of long-distance oil/gas pipelines intensity etc. Limited by the pipeline routes, welding techniques, equipment volumes, etc., the pipeline automatic welding ...

    Get Price
  • Our technical support for ERW steel pipe, ERW steel pipe ...

    LSAW pipe (LSAW) is a single plate as raw material, steel in the mold or molding machine pressure (volume) into the tube, using double-sided submerged arc welding method and Expanding from the produce. In the construction of high-strength, high toughness, high-quality long-distance gas pipeline, most of the required large diameter thick wall ...

    Get Price
  • Working pressure for long-distance oil and gas pipeline

    Working pressure for long-distance oil and gas pipeline. Working pressure and diameter of oil and gas pipelines, are first identified in pipeline design framework technical parameters. Working pressure directly determine the number of pumping stations and compressor stations, steel consumption in the power station unit and piping.

    Get Price
  • Introduction of Weld Seam of Submerged Arc Welding ...

    2020-1-19u2002·u2002tube manufacturing technology to this day, we should conduct comprehensive and correct evaluationand comparison,andre-recognize theproblem of longspiral welds. First,since the

    Get Price
  • Flash butt welding of pipe - The Fabricator

    2002-4-15u2002·u2002The welding head is lowered over the joints to be welded, and the clamps are engaged. This holds the pipe and aligns the pipe ends. Pipe ends are cleaned before the welding commences. When the weld is complete, a flash remover is inserted into the weld area on a stinger rod, and the internal flash is removed while the metal is still soft.

    Get Price
  • Avoid Spiral Steel Tube Rupture in Long Pipeline

    2014-7-1u2002·u2002Spiral pipe with big diameter, high strength and practical features make it the first choice of many long-distance pipeline. With the spiral steel pipe rupture has a method for base metal and weld flattening test, guided bend test, a number of indicators of …

    Get Price
  • General Welding Guidelines - MCAA

    2016-4-5u2002·u2002When welding with a gas-shielded welding process, the area in which welding is being done shall be protected from drafts which can cause loss of the gas shield. Wind velocities in excess of 5 mph are high enough for this to happen, resulting in surface oxidation of the weld metal, oxide contamination

    Get Price
  • What are the technical requirements for pipeline valves?

    2020-5-7u2002·u2002Long-distance pipelines require valve performance test. Long-distance pipelines are affected by geographic and natural conditions, and must withstand the …

    Get Price
  • Assessment of Polyethylene Welds - PIPA

    2020-11-27u2002·u2002PMBWELD 301 (Butt Welding Polyethylene Pipelines). 1.4 Long Term and Short Term Testing This guideline focuses on so called short term testing of PE welds primarily aimed at field based or rapid turnaround test options typically used as QA/QC measures. The purpose of long and short term testing is often misunderstood and hence the following ...

    Get Price