Power Plants
High-pressure flanges are primarily used in the "four major piping systems" of power plants (main steam piping, hot/cold reheat steam piping, and high-pressure feedwater piping), connecting valves and fittings to high-temperature, high-pressure steam and feedwater lines. They withstand long-term exposure to high temperatures, high pressures, and cyclic loads, ensuring sealing stability and operational safety within high-pressure thermal systems.
Chemical Plants
Used in high-pressure process lines, reaction units, and hydrogen-service piping within refining and ethylene facilities; compatible with various materials such as carbon steel, alloy steel, and stainless steel. They meet the demands of rigorous operating conditions—including high-pressure material transport, high-temperature hydrogen service, and highly corrosive environments—and, when paired with special-material flanges, ensure the sealing integrity and corrosion resistance of high-pressure chemical systems.
Oil and Gas Pipelines
Used in high-pressure oil and gas transmission lines for long-distance trunk lines, gathering stations, and compressor/booster stations, facilitating the connection of pipe segments, valves, and equipment. Designed for large-diameter, high-pressure transport, they offer excellent pressure-bearing capacity and sealing reliability, making them suitable for long-term service in rugged field environments.
Urban Heating Networks
Widely used in the main lines of high-temperature, high-pressure primary heating networks and the high-pressure piping at heat exchange station inlets and outlets, connecting with prefabricated direct-buried insulated piping. Capable of withstanding the continuous transport of thermal media exceeding 130°C, they combine temperature resistance, pressure tolerance, and corrosion resistance to ensure the long-term, stable operation of municipal high-pressure district heating networks.
Drilling Platforms
Used in high-pressure mud manifolds, Christmas tree manifolds, hydraulic systems, and steam piping on offshore drilling platforms. Engineered to withstand marine environments (including high salt-spray corrosion), platform vibrations and shocks, and high-pressure operations, they ensure the connection strength and sealing integrity of high-pressure lines for drilling and extraction, meeting the rigorous demands of offshore oil and gas development.
Shipyards
Primarily used in high-pressure piping systems on ships, including main engine high-pressure fuel systems, high-pressure steam lines, and hydraulic power systems. It withstands the impact of high-pressure media and operational vibrations within marine propulsion systems, meets corrosion resistance requirements for the marine environment, and ensures the operational reliability of the vessel's high-pressure power piping systems.