At Haihao Group, we take pride in our ability to manufacture top-quality products that meet the most demanding specifications. Today, we would like to share with you the intricacies of our production process and the challenges we overcome to bring you the exceptional base pipe and flange combina ...

At Haihao Group, we are dedicated to providing our customers with top-of-the-line products that meet their specific requirements. Today, we are excited to introduce a product that combines superior base pipe and flange components, offering exceptional performance and durability for various appli ...

When it comes to pipe flanges, it’s important to choose the right type for your specific needs. Different types of flanges are designed for different applications, and each has its own unique set of specifications and features. At Haihao Group, we offer a wide range of high-quality pipe fl ...

Haihao Group is a leading manufacturer and supplier of pipe fittings and flanges, with a wide range of flange standards available to meet various customer needs. Our flange standards include ASME, AWWA, DIN, EN, BS, JIS, GOST, SABS, and more. ASME flanges are widely used in industries such as oi ...

Offshore wind power is a rapidly growing industry, and its development requires high-quality and reliable equipment. One such critical component is the offshore wind power flange, which is used in wind turbine tower construction to connect tower segments and support the blades. At Haihao Group, ...

Flanges are an essential component in the construction of pipelines, as they are used to connect pipes, valves, and other equipment. The surface treatment of flanges is an important aspect of their manufacturing process, as it directly affects their performance, durability, and appearance. In th ...

Flanges are a critical component in many piping systems, serving as the connection point between pipes and other equipment. At our company, we offer a wide range of flange types, including RF, FF, MF, MFM, RJ, TG, RTJ, and SRF. RF flanges, also known as raised face flanges, feature a raised port ...

Class 1500 and Class 2500 spectacle blind flanges are commonly used in high-pressure piping systems. These flanges are designed to fit between two pipes or flanges, and they can be rotated to either block or allow flow through the system. The Class 1500 and Class 2500 designations refer to the p ...

Marine flanges are a crucial component in ship piping systems, as they connect different sections of pipes and equipment. There are several types of marine flanges, each designed for specific applications and conditions. Here are some of the most common types of marine flanges: 1.Weld Neck Flang ...

Flanges are essential components in piping systems, connecting pipes, valves, and other equipment. They play a crucial role in ensuring the safe and efficient operation of industrial processes. To enhance the performance and longevity of flanges, various types of coating treatments are used. Coa ...

Flanges are an essential component of piping systems in ships, particularly in FPSO (Floating Production Storage and Offloading) and LNG (Liquefied Natural Gas) vessels. These systems transport and distribute fluids and gases across the ship, and the reliability and safety of the flanges used in ...

Haihao Group is proud to have provided a batch of high-quality EN 1092-1 flanges to an Italian customer. These flanges are an essential component in a variety of industrial applications, and we are pleased to have played a role in supporting our customer’s needs. Our EN 1092-1 flanges are ...