Flanges are in extremely high demand, with the core factors being the essential need for pipe/equipment connection, coverage across all industries, standardization, ease of maintenance, and safety and reliability. None of these factors can be missing.
First, the essential need: the “universal interface” for pipes and equipment. The piping system is the “blood vessels” of industry and infrastructure. Every section of pipe, valve, pump, heat exchanger, and pressure vessel requires flange connection, used in pairs, doubling the demand. Their functions are irreplaceable: connection, sealing, pressure resistance, and disassembly, balancing safety and maintenance.
Second, coverage across all industries, with an explosive demand base. Petrochemicals/oil and gas (the largest market, approximately 38.6%): high pressure and temperature, corrosive media, flanges are the safety bottom line. Power (thermal power/nuclear power/wind power): a single nuclear power unit requires over 2,000 flanges. Ships/ocean engineering: duplex stainless steel flanges increase by 15% annually. Construction/water supply and drainage/fire protection: extensive use in high-rise buildings and municipal pipe networks. Metallurgy, pharmaceuticals, food, and new energy (hydrogen energy/solar power): all are essential application scenarios.
Third, standardization, low cost, and ease of maintenance, amplifying the demand. Global unified standards (GB/ANSI/DIN/JIS), strong interchangeability, simple inventory, and controllable costs. Quick installation and disassembly, facilitating inspection, replacement, and expansion, and reusable throughout the system’s lifespan. Complete material and specification range (carbon steel/stainless steel/alloys, from low pressure to ultra-high pressure), suitable for all operating conditions.
Fourth, safety and reliability determine the necessity of large-scale use. Flange sealing failure can lead to leakage, fire, and explosion, thus requiring sufficient quantity, high quality, and high redundancy. Long-distance pipelines, complex pipe networks, and multiple equipment in series have numerous nodes, each requiring flanges.
Post time: Mar-31-2026
