pipingfab

  • Haihao Group’s Engineers make WPS for welding of pipe spools

    Haihao Group’s Engineers make WPS for welding of pipe spools

    Pipe spools are fabricated from components, these components may be steel pipe, flanges and pipe fittings. They could be connected together by welding or thread. WPS are necessary for welding of pipe spool. What is WPS? Why our engineers must make WPS? Pipe spools Welding Procedure Specification (WP ...

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  • Haihao Group’s Engineers make PQR for welding of pipe spools

    Haihao Group’s Engineers make PQR for welding of pipe spools

    Pipe spools are fabricated from pipes, pipe fittings or flanges. The main work of fabrication is welding. To guarantee the quality of welding, our engineers must make PQR and WPS in advance. Pipe spools What is PQR? PQR stands for procedure qualification record, which is the record of the welding da ...

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  • Haihao Group fabricated galvanized pipe spools for urban water project in Morocco

    Haihao Group fabricated galvanized pipe spools for urban water project in Morocco

    Morocco is a very beautiful country. The population was about 35.27 millions (2016), about half population lives in urban areas. In order to reduce water scarcity and pollution in urban, the bureau of water and electricity implemented comprehensive water and waste treatment project. The World Bank p ...

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  • Haihao Group offer excellent piping solutions for sewage treatment project in Iraq

    Haihao Group offer excellent piping solutions for sewage treatment project in Iraq

    When we think of Iraq, our first opinion may be that their oil & gas reserves are very large. Except for Oil & gas, their phosphate reserves are also very large, about 10billion tons, which is TOP10 in the world. Iraq government also pays much attention to phosphate industry. STATE COMPANY O ...

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  • Haihao Group are attending water treatment project in Vietnam

    Haihao Group are attending water treatment project in Vietnam

    Haihao Group are attending water project in Vietnam in recent, the products are pipe spools, flanges, puddle pipes. The internal coatings are liquid epoxy; the external coatings are tape coating. Liquid-epoxy coatings are very regular coatings for steel water pipeline, which is in accordance with AW ...

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  • Water treatment project in accordance with AWWA C209 and AWWA C214

    Water treatment project in accordance with AWWA C209 and AWWA C214

    Haihao Group is attending a water supply pipelines project in recent; the products are pipe spools and flanges. According to technical documents requirement, the coating is in accordance with AWWA C209 and AWWA C214. AWWA C209 and AWWA C214   AWWA C209 and AWWA C214 are both tape coating standa ...

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  • Haihao Group fabricate pipe spools to support water supply project in Tanzania

    Haihao Group fabricate pipe spools to support water supply project in Tanzania

    In order to solve shortage of water supply, Tanzania planed to construct thousands of water facilities. This plan will be finished in three stages. First stage was from 2007, second stage was from 2014, third stage will begin from 2019. Hebei Haihao Group are professional pipe spools manufacturer ov ...

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  • Epoxy lining and Sleeve coating pipe spool for water project in Mauritius

    Epoxy lining and Sleeve coating pipe spool for water project in Mauritius

    Haihao Group received project from Mauritius. The products are pipe spool, material is carbon steel. As client’s requirement, the internal coating is liquid epoxy; the external coating is Heat Shrinkable Wrap around Sleeve. These pipe spools are used for water project. Liquid epoxy pipe spools Liqui ...

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  • Will summer high temperature affect production of flanges?

    Will summer high temperature affect production of flanges?

    As summer comes,the weather becomes hotter and hotter,temperature of many cities arrive 35℃ to 38℃ at noon.Some cities are even around 40℃. High temperature affect production of flanges Heating is necessary process to produce forged flanges.It need to heat many times during production,so the forged ...

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  • How to inspect weld seam of pipe spools?

    How to inspect weld seam of pipe spools?

    Pipe spools are a part of pipeline,which is prefabricated in a fabrication shop,for future installation in the field.They are often flanged,to facilitate the connection to other spools.Among flanges and fittings,they are jointed together by weld seam.Welding is very important work to guarantee quali ...

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  • Marking of pipeline in Haihao Group

    Marking of pipeline in Haihao Group

    Pipe spools consist of pipes,pipe fittings,flange,valves etc.Marking is to show the information of these materials. The regular information includes brand,size,thickness/pressure,material,heat number etc. There are many methods to mark on pipeline,the regular methods are stenciled marks,carve marks ...

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  • Impact test of EN10204 for German order

    Impact test of EN10204 for German order

    Impact test of EN10204 for German order In order to guarantee good quality of material and issue EN10204 3.2 certificate,our company arranged impact test in national laboratory, BV witness the test.The main material is A420 WPL6,A350 LF2. Impact test samples of A420 WPL and A350 LF2 materials Impact ...

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