Flanges play a crucial role in pipeline systems, providing secure connections between pipes, valves, and equipment. Among various flange standards, ASME B16.47 is designed specifically for large-diameter flanges (≥26 inches), making it a preferred choice in industries like oil & gas, petroch ...

What is a Spectacle Blind Flange? A spectacle blind flange is a piping component used to isolate sections of a pipeline or to temporarily shut off the flow for maintenance and safety purposes. It consists of two metal discs connected by a small bridge—one disc is solid (blind), blocking flow, wh ...

The BS4504 RF ASTM A105 PN16 SO flange is a widely used slip-on (SO) flange that meets BS4504 standards, designed for pressure nominal (PN) 16 applications. Manufactured from ASTM A105 carbon steel, this flange is known for its strength, durability, and suitability for low to medium pressure pip ...

Flanges play a crucial role in piping systems, ensuring secure connections between pipes, valves, and other equipment. Two widely used flange standards are ASME B16.5 and BS4504, each catering to different industries and regions. Understanding their differences is essential when selecting the ap ...

The NEFTEGAZ Exhibition is one of the most significant events in the global oil and gas industry, held annually in Moscow, Russia. Since its inception in 1986, NEFTEGAZ has become a key platform for professionals to showcase the latest technologies, equipment, and solutions in the oil and gas se ...

When demanding applications require exceptional corrosion resistance and high-temperature strength, engineers turn to specialized materials and components. One standout combination is the ASME B16.5 socket flange crafted from ASTM B564 UNS N06625, a nickel-chromium-molybdenum alloy renowned for ...

Haihao Group is proud to supply ASTM A182 GR. F316/316L compact flange with IX Seal Ring, a high-performance piping component designed for demanding industrial applications. This compact flange is widely used in offshore, subsea, and high-pressure pipeline systems, offering superior sealing, str ...

In the production of high-quality flanges, the deoxidation process plays a crucial role in determining the mechanical properties and overall performance of the final product. Deoxidation is a metallurgical process used to remove oxygen from molten steel, preventing the formation of oxides that c ...

In industrial piping systems requiring unmatched corrosion resistance and structural integrity, ASME B16.5 ASTM B564 UNS N06625 RF socket weld flanges stand as a benchmark for reliability. At Haohao Group, we specialize in manufacturing these high-performance flanges tailored for 300# and 600# p ...

Recently, Haihao Group successfully delivered a batch of JIS B2220 316L threaded flanges to a valued customer in Norway. This order included a range of specifications designed to meet the client’s specific requirements. The flanges were made from 316L stainless steel, known for its excelle ...

Recently, Haihao Group secured a supply contract with a customer in Russia, which includes the manufacturing of ASME B16.48 spectacle blind FF ASTM A516 Grade 60 in various specifications, including DN200 CL150, DN100 CL300, DN25 CL150, and DN50 CL900. The customer requested specific material pr ...

At Haihao Group, we constantly strive to ensure the quality and reliability of our products, including flanges, through rigorous quality control processes. Recently, we performed penetrant testing on a batch of flanges to detect surface defects, an essential aspect of our comprehensive quality a ...