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Haihao Group Supplies Large-Diameter ASTM A105 Weld Neck Flanges for Indonesia Infrastructure Project
When discussing pipeline systems, attention is often focused on valves, pumps, or pipe materials. However, experienced engineers know that flange selection can have a direct impact on installation efficiency, maintenance costs, and long-term operational reliability. Recently, Haihao Group comple ... -
Haihao Group Ships Large-Diameter ASTM A105N Weld Neck Flanges for Portugal Industrial Pipeline Project
A large-diameter flange may look like a simple connection component, but in critical pipeline systems, it often determines how reliably an entire section of piping performs over years of operation. Recently, Haihao Group completed the production and delivery of a batch of ASTM A105N weld neck fl ... -
Haihao Group Supplies ASTM A350 LF2 Flanges for a Low-Temperature Pipeline Project in Russia
Pipeline projects operating in northern climates face unique engineering challenges. Components must maintain strength, toughness, and sealing performance even when exposed to harsh environmental conditions and demanding operating media. Recently, Haihao Group completed the production and shipme ... -
ASTM A694 F52 Flanges Delivered for a Malaysia Pipeline Expansion Project
As energy and infrastructure investments continue to grow across Southeast Asia, pipeline operators are placing greater emphasis on the reliability of every connection point within their systems. While pipes often receive the most attention, the performance of a pipeline can depend just as heavi ...
Haihao pipe fitting department is the steel pipe fitting division of Hebei Haihao High Pressure Flange Pipe Fitting Group Co.,Ltd, we manufacture ,supply and serve our clients all over the world in the steel pipe fittings field, especially the butt welding pipe fittings.
Hebei Haihao pipe fitting plant is established in 1988.At the beginning , we start production from carbon steel elbows ,then steel pipe tees years later.In the 21 century, we establish the new factory to produce the stainless steel pipe fittings. Now our pipe fittings plants can manufacture most kinds of steel pipe fittings used in industry pipeline.
