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 ...

Haihao Group, a leading expert in the pipeline systems industry, recently received an order from an Indonesian client for a batch of ASME B16.5 flange reducer A182 F316/F316L. This product is a high-quality, threaded flange reducer designed to offer reliable connections in demanding industrial a ...

Haihao Group, a globally recognized manufacturer and supplier of premium piping products, is pleased to announce the successful delivery of ASME B16.5 ASTM A694 GR.F65 RTJ Weld Neck Flanges to a prominent client in Singapore. These high-performance flanges are designed to meet the stringent dema ...

Haihao Group, a leading manufacturer and supplier of high-quality piping products, is proud to announce the successful delivery of ASME B16.5 A105 RF slip on flanges to a valued client in Malaysia. ASME B16.5 A105 RF slip on flange Product Overview: ASME B16.5 A105 RF Slip On Flanges The ASME B1 ...

What is a Swivel Flange? A swivel flange is a specialized type of flange designed to facilitate easier alignment and installation in piping systems. Unlike traditional fixed flanges, a swivel flange consists of two main components: The rotating ring – A loose flange ring that can rotate around t ...

RTJ (Ring Type Joint) flanges are a type of flange designed for high-pressure and high-temperature applications. The RTJ face features a precision-machined groove where a metal ring gasket is placed. When the flange is bolted together, the gasket deforms to create a tight, metal-to-metal seal, e ...

Weld neck (WN) flanges are widely used in high-pressure and high-temperature piping systems due to their superior strength and reliability. Among them, ASME B16.5 weld neck (WN) flanges with Ring Type Joint (RTJ) facing, made from ASTM A105 carbon steel and rated at Class 1500 (Cl1500), are part ...

Haihao Group continues to strengthen its position as a trusted supplier in the pipeline industry by successfully fulfilling an order of ASME B16.5 socket weld flanges for our esteemed Singapore customer. These high-quality flanges are manufactured to meet the stringent requirements of industrial ...

At Haihao Group, we specialize in manufacturing high-performance pipeline components that exceed global standards. Our recent collaboration with a leading Russian client underscores our expertise in delivering precision-engineered solutions for critical industrial applications. Here’s why ...

At Haihao Group, we are committed to providing high-quality piping products that meet the rigorous demands of industries worldwide. Recently, we successfully delivered a batch of ASME B16.5 A105N blind flanges with a black paint coating to a valued client in Singapore. This delivery highlights o ...

At Haihao Group, we pride ourselves on meeting the specific needs of our global customers. Recently, we successfully fulfilled an order for a Sri Lankan customer, supplying high-quality EN 1092-1 Type 01 flat flanges. These components are essential in ensuring safe and reliable connections in in ...