Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd

Hebei Haihao Flange Factory

Hebei Haihao Flange Factory
  • Introducing our high-quality spectacle blind flange for Singapore client

    Introducing our high-quality spectacle blind flange for Singapore client

    At Haihao Group, we are committed to delivering superior piping solutions that meet the precise needs of our global clientele. We are pleased to announce the latest order from our Singapore customer for our spectacle blind flange, 16″ NB, Low Temperature Carbon Steel ASTM A350 LF2 CL1. Bel ...

  • Premium ASME B16.5 RF CL300 ASTM A105N weld neck flanges

    Premium ASME B16.5 RF CL300 ASTM A105N weld neck flanges

    We are delighted to introduce our top-of-the-line product, the ASME B16.5 WN Flange RF CL300 ASTM A105N, which has been exclusively designed to meet the demanding requirements of shipyards. Our ASME B16.5 RF CL300 ASTM A105N weld neck flanges are designed to provide exceptional strength, durabil ...

  • Haihao Group's custom flanges meet customers' ordering requirements

    Haihao Group’s custom flanges meet customers’ ordering requirements

    Not long ago, a client from the United Kingdom placed an order with Haihao Group for a batch of ASME B16.5 flanges, including WN, SO, and BL flanges. Additionally, the client provided some flange drawings, requesting customized production based on these drawings. As experts in the field of pipel ...

  • Unlocking the excellence of ASME B16.5 RF SA-182 F316/316L BL Flange

    Unlocking the excellence of ASME B16.5 RF SA-182 F316/316L BL Flange

    Haihao Group is proud to announce the recent order from our esteemed client in the United Kingdom for ASME B16.5 RF SA-182 F316/316L BL flange. This bespoke product showcases our commitment to delivering high-quality solutions tailored to meet our customers’ diverse needs. Understanding BL ...

  • ASME B16.5 RF CL150 ASTM A105N SO Flange

    ASME B16.5 RF CL150 ASTM A105N SO Flange

    In response to the requirements of a domestic shipyard, Haihao Group has embarked on the production of a batch of ASME B16.5 RF CL150 ASTM A105N SO flange. Quality Assurance: Before shipment, our commitment to quality begins with thorough inspections. Each flange is meticulously coated with rust ...

  • ASME B16.5 flange ultrasonic testing at Haihao Group

    ASME B16.5 flange ultrasonic testing at Haihao Group

    At Haihao Group, our commitment to delivering top-quality products to our clients is unwavering. Recently, we conducted ultrasonic testing on ASME B16.5 A105N SO flange and ASME B16.5 A105N blind flange  ordered by our esteemed customer in Turkey. We are pleased to announce that both types of fl ...

  • Comparative analysis of four non-destructive testing methods for flanged pipelines

    Comparative analysis of four non-destructive testing methods for flanged pipelines

    Non-destructive testing (NDT) refers to a collection of techniques that assess the integrity of materials or components without causing damage to them. These methods provide information about the presence of defects, their size, location, nature, and quantity, aiding in determining the technical ...

  • Haihao Group takes you to understand the inspection of pressure vessel flanges

    Haihao Group takes you to understand the inspection of pressure vessel flanges

    In the petrochemical industry, pressure vessels play a crucial role, with pressure vessel flanges being essential components. To ensure their safe operation, pressure vessel flanges need to undergo a series of rigorous inspection procedures, including internal and external inspections, as well a ...

  • Ensuring reliability and safety pressure vessel flanges

    Ensuring reliability and safety pressure vessel flanges

    Pressure vessel flanges are essential components widely used in various industries such as petrochemical, power generation, nuclear, and light industries. Serving as fundamental elements for connecting different parts of pressure vessels, these flanges play a critical role in ensuring seamless o ...

  • Things to note when welding stainless steel flanges

    Things to note when welding stainless steel flanges

    Stainless steel flanges, despite their durability and corrosion resistance, can encounter several challenges during the welding process. Here are some common issues to be aware of: Carbonization Due to Repeated Heating: Repeated heating during welding can lead to the dissolution of carbides in s ...

  • ASME B16.5 RF A105 SO flanges for UAE client

    ASME B16.5 RF A105 SO flanges for UAE client

    Welcome to Haihao Group, where excellence meets innovation. We are thrilled to showcase our latest achievement: the ASME B16.5 RF A105 SO flanges. In this article, we delve into the specifics of this product, tailored to meet the needs of our esteemed client in the UAE. Product Overview: The ASM ...

  • Understanding the sealing principles of flanges

    Understanding the sealing principles of flanges

    Flanges play a crucial role in ensuring the integrity and functionality of piping systems. At Haihao Group, we specialize in understanding the intricate sealing principles of flanges to deliver superior solutions to our clients. GASKET VCS 900 LB TYPE F TEFLON SEAL MYLAR SLEEVES 1 Sealing Mechan ...