At Haihao Group, we take great pride in providing a diverse range of top-quality products to cater to our clients’ unique engineering needs. Among our exceptional offerings, the spacer ring, also known as a blind flange insert ring, stands as a testament to our commitment to excellence in ...

At Haihao Group, our commitment to excellence and customer satisfaction drives us to deliver top-of-the-line solutions tailored to our esteemed clients’ specific needs. We are thrilled to announce that a UAE customer has recently entrusted us with a substantial order for a batch of pipe fi ...

At Haihao Group, we take immense pride in fulfilling our customers’ specific requirements and adhering to the highest quality standards. Recently, we received an order from our esteemed UAE customer, who required flange products compliant with the NACE MR 0103 standard. We are thrilled to ...

When it comes to creating a leak-free and reliable sealing between flange connections, the choice of gasket plays a vital role. With a myriad of options available, it’s essential to understand the unique characteristics of each gasket type to make the right selection for your specific appl ...

What is slip on (SO) flange? SO flange, short for slip-on flange, is a popular type of flange used in various industries to connect pipes and equipment. It features a circular plate with a bore, allowing the pipe to slip into the flange. Once the pipe is inserted, the flange is welded to the out ...

In the world of industrial sealing solutions, one gasket stands out for its exceptional performance in demanding applications – the spiral wound gasket. Let’s explore what makes this gasket a game-changer and its numerous advantages. What is a spiral wound gasket? A spiral wound gask ...

At Haihao Group, our commitment to delivering top-quality pipe fittings extends beyond exceptional materials and precision engineering. We take immense pride in offering products that are not only durable and reliable but also highly resistant to corrosion. One such testament to our dedication i ...

When it comes to operating in extreme temperatures ranging from -40 degrees Celsius to -120 degrees Celsius, Haihao Group understands the critical importance of ensuring the stability and performance of our flanges. To meet the demands of such challenging environments, we employ a meticulous hea ...

Submarine pipelines serve as lifelines for various industries, allowing the efficient transport of resources across vast underwater distances. At Haihao Group, we take pride in delivering top-quality submarine pipeline solutions that are designed to withstand the unique challenges posed by deep- ...

When it comes to optimizing the functionality and flexibility of your piping systems, flange branch outlet (FBO) is the ultimate solution. Haihao Group proudly presents a comprehensive range of FBOs, designed to provide seamless branch connections with unmatched reliability and efficiency. What ...

In the realm of nuclear power plant projects, precision and durability are paramount. Haihao Group proudly presents our specially designed ASME B16.5 weld neck (WN) flange, meticulously crafted to meet the rigorous demands of nuclear power plant installations. With its exceptional features and a ...

Haihao Group, a trusted name in the pipe fitting industry, is proud to present our ANSI B16.47 Class 900 high-pressure lap joint flange 12 inch RF. Engineered to excel in high-pressure applications, this flange combines unmatched strength, precise design, and exceptional performance. In this pro ...