When it comes to critical applications where safety and reliability are paramount, the ASME B16.47 Class 900 Series A welding neck flange stands as a trusted choice. At Haihao Group, we go above and beyond to ensure that our flanges meet the highest standards of quality and performance. In this ...

When it comes to marine applications, reliability, and safety are paramount. At Haihao Group, we understand the stringent requirements of the marine industry and are proud to offer a range of marine flanges that are DNV-GL certified. In this promotional article, we highlight the significance of ...

In the realm of pipeline systems, the quality and reliability of flange connections play a pivotal role in ensuring seamless and efficient operations. At Haihao Group, we are renowned for our expertise in manufacturing high-performance pipe fittings, and our Weld Neck Flange DIN 2631 PN6 DN32 st ...

Flanges play a critical role in various industries, connecting pipes and ensuring seamless operations. However, to optimize their performance and prolong their lifespan, selecting the appropriate coating is crucial. In this article, we delve into the factors that influence coating selection and ...

When it comes to sealing flange connections in industrial piping systems, choosing the right gasket dimensions is crucial. ASME B16.21 provides a comprehensive standard for flange gasket dimensions, ensuring effective sealing and preventing leakage. Let’s delve into the importance of ASME ...

In the world of industrial piping, reliable connections are essential for smooth and efficient operations. That’s where DIN EN 1092-1 flange ratings come into play. These internationally recognized ratings provide a standardized system for classifying flanges based on their pressure-temper ...

Are you in search of a reliable and high-quality flange for your piping system? Look no further! Haihao Group proudly presents the DN50-PN16 BS EN 1092-1 A105 SO flange, a versatile and robust solution that meets your demanding requirements. Our DN50-PN16 BS EN 1092-1 A105 SO flange is specifica ...

Haihao Group is thrilled to announce our latest offering: SAE-B flanges made of 303 material specifically designed for marine hydraulic pipelines. We take immense pride in providing our customers with top-quality products that meet their exacting requirements. SAE-B flanges are widely used in ma ...

We are thrilled to announce the successful shipment of 11 pieces of B16.47 A CL150 A105 RF CS blind flanges, measuring an impressive 1200mm in diameter, to our esteemed customer in Saudi Arabia. This significant milestone marks another achievement in our commitment to delivering high-quality and ...

Flanges are integral components in various industries, providing essential connections between pipes, valves, and equipment. At Haihao Group, we understand that choosing the right material for flanges is crucial for ensuring optimal performance and reliability. Let’s delve into the differe ...

Not long ago, the customer ordered a batch of flange steel pipe joint products in Haihao. Today, this batch of products has undergone a third-party quality inspection according to the customer’s needs. The quality inspection content includes the following aspects: Appearance Curing: Ensuri ...

At Haihao Group, we thrive on challenging projects that push the boundaries of innovation and excellence. Recently, we embarked on an exciting journey with a customer who had unique requirements for their base pipe and flange combination. In this article, we will delve into the technical discuss ...