Haihao Group has successfully completed the delivery of a large batch of ASTM A234 WPB pulled bends to a client in Vietnam, supporting the construction and operation of critical pipeline systems. This shipment included 2D, 3D, and 5D pulled bends in a wide ...

Haihao Group recently completed a shipment of concentric swage nipple fittings for a valued customer in Singapore. These fittings are designed to provide a smooth transition between different pipe sizes while maintaining system strength, sealing reliabilit ...

Haihao Group is pleased to announce our participation in the 2025 Gastech Exhibition & Conference, taking place from 9–12 September 2025 at Fiera Milano, Milan, Italy. You can find us at Stand No. C111. This year, Haihao Group will join hands with GANY ...

Haihao Group is pleased to announce the successful delivery of custom forged tees to a valued customer in Indonesia. The order reflects our strong capability in providing tailor-made piping components that meet precise dimensional, pressure, and material r ...

Haihao Group has successfully completed the delivery of a comprehensive batch of weld pipe fittings for a major industrial project in Pakistan. This shipment includes a wide range of high-performance fittings designed for demanding pipeline applications, e ...

Haihao Group has successfully completed the production and shipment of a batch of 180 degree long radius elbows for a client in Singapore, supporting a high-pressure pipeline application. These elbows, sized 1½” (DN40) with SCH 80 wall thickness, wer ...

Haihao Group recently completed the shipment of a full range of pipeline components to a valued customer in Côte d’Ivoire, supporting a key infrastructure project in the West African region. The order included seamless steel pipes, flanges, gaskets, ...

At Haihao Group, we are dedicated to manufacturing and supplying high-quality forged branch connection fittings to meet the diverse needs of global industries. Recently, we successfully delivered a batch of MSS SP-97 ASTM A182 GR.316/316L Sockolet fittings ...

In fluid control systems, control valves play a vital role in regulating flow and pressure. However, under certain operating conditions, phenomena like flashing and cavitation can occur—both involving pressure-induced phase changes in the fluid. While they ...

As an important economic hub in southern Europe, Italy plays a vital role in China-Europe trade, especially in the fields of industrial equipment, piping systems and pressure fittings. Over the past decade, Haihao Group has established solid partnerships a ...

Valve leakage is one of the most common problems in industrial piping systems. Whether used in oil and gas, chemical processing, water treatment, or power generation, faulty valves can lead to costly fluid loss, environmental contamination, equipment damag ...

Valve seats are critical components that ensure tight sealing in industrial systems. However, over time, valve seat damage can occur due to a variety of factors, from abrasive wear and chemical attack to improper installation or operational errors. Underst ...

At Haihao Group, delivering products that meet both international standards and customer expectations is our top priority. Recently, we conducted a full quality inspection for a domestic client’s order consisting of various stainless steel pipe fittings an ...

In the intricate architecture of industrial pipelines – spanning oil & gas, power generation, chemical processing, and water treatment – elbows are indispensable for directing fluid flow. Among the most critical of these pipe fittings is the long radiu ...

At Haihao Group, we recently completed a customized production order of 24-inch ASTM A860 WPHY 52 Long Radius Elbows for one of our long-term clients in Singapore. These elbows are specifically designed for use in demanding pipeline systems, such as those ...

In industrial piping systems, choosing the right fitting standard is critical to ensuring safety, reliability and system performance. Haihao Group recently produced orders for Singapore customers, including ASME B16.11 socket fittings and ASME B16.28 fitti ...

Industrial valves play a critical role in controlling the flow of fluids and gases in various industries, from petrochemical plants to water treatment facilities. Ensuring their reliability and safety is essential. One key aspect of this assurance process ...

In corrosive environments such as offshore platforms, chemical plants or oil and gas pipelines, stainless steel elbows are a common choice due to their excellent corrosion and high temperature resistance. However, they are not the only solution. For exampl ...

If you are purchasing steel pipes for mechanical or industrial purposes, especially in Russia, Eastern Europe or CIS countries, the GOST 8734-75 seamless steel pipes recently provided by Haihao Group to Russian customers are a good choice. Below I will int ...

During the construction of the pipeline system, we often encounter elbow fittings. They have various angles, such as 45°, 60°, 90°, 180,etc. These values ​​describe the bending radius of the elbow fittings, which directly affects the total length, pressure ...