Haihao Group has successfully completed the production and export of ASTM A694 Grade F70 API 6A BX Weld Neck Flanges for a French energy project operating under demanding service conditions. Designed for Class 10,000 PSI pressure rating, these flanges meet API 6A BX ring joint standards, ensurin ...

As the global energy industry moves toward efficiency and sustainability, Hebei Haihao Group Industry Piping Co., Ltd. continues to stand at the forefront of pipeline innovation. The company is pleased to announce its participation in ADIPEC 2025, taking place from 3rd to 6th November 2025 at th ...

To meet the demanding requirements of a UK industrial project, Haihao Group recently manufactured and supplied a batch of spiral wound gaskets built to ASME B16.20 and ASME B16.47 Series A specifications. These gaskets were engineered to deliver reliable sealing in extreme pressure and temperatu ...

As part of our continued cooperation with global clients, Haihao Group has recently completed the shipment of a range of flange products to a valued customer in Singapore. This batch includes spectacle blinds (figure-8 blanks), spacer rings, and paddle blanks manufactured in accordance with ASME ...

Haihao Group has recently completed the shipment of Klingersil C-4430 non-asbestos flange gaskets to a valued client in Russia. These precision-engineered gaskets are designed to ensure reliable sealing performance in critical industrial pipeline systems, where resistance to pressure, temperatur ...

Haihao Group has successfully completed another export order of industrial flanges for a valued client in Russia. The shipment includes a comprehensive range of ASME B16.5 forged flanges and ASME B16.48 figure-8 blanks, designed for high-performance pipeline systems operating under demanding tem ...

Haihao Group has successfully completed the production and shipment of a full range of carbon steel flanges for a valued customer in Qatar. The order covers multiple types, including Slip-On (SO), Weld Neck (WNRF), Blind (BLRF), and Threaded (THRF) flanges, all manufactured from ASTM A105 forged ...

Haihao Group has proudly completed another international delivery – a batch of EN 1092-1 flanges supplied to a long-term partner in Vietnam. The order consists of Type 01 B1 plate flanges and Type 05 B1 blind flanges, all produced in accordance with EN 1092-1 and ASTM A516 Grade 70 standar ...

Haihao Group is pleased to announce the successful delivery of a 24-inch Paddle Blank Flange to one of our valued clients in Singapore. Manufactured according to ASME B16.48 Class 600 RF, this product is made from ASTM A240 316 stainless steel, ensuring excellent durability, corrosion resistance ...

Haihao Group has successfully delivered a batch of weld neck (WN) flanges with RTJ facing to a valued customer in Singapore. The product details are as follows: Product: WN Flange RTJ Size: 1″ Rating: 2500# Schedule: S-80S Standard: ASME B16.5 Material: ASTM A182 F55 (Super Duplex Stainle ...

Haihao Group has successfully completed the shipment of a full set of pipeline products for a valued customer. The delivery included weld neck flanges, bolt sets, and spiral wound gaskets, ensuring a complete piping connection solution that meets international standards. GOST 33259 WN flange DN4 ...

Haihao Group has recently completed the supply of ASME B16.5 A694-F65 WN RTJ flanges to a key customer in Singapore. The shipment included: 2-inch weld neck RTJ flange, pressure class 2500#, SCH XXS wall thickness, with black paint finish. 8-inch weld neck RTJ flange, pressure class 1500#, SCH ...