Large Diameter Flanges are specially designed flanges used for large-size piping systems, typically ranging from DN600 (24") and above, and extending to several meters in diameter depending on project requirements.
They are engineered to provide strong, reliable connections in large pipelines, pressure vessels, and industrial equipment, where high structural integrity and precise manufacturing are essential.
These flanges are widely used in industries such as oil & gas, offshore, power generation, shipbuilding, and water infrastructure projects.
large diameter flanges
Flanges types:
large diameter flanges:
Material:
Carbon steel , Stainless steel, Alloy steel:
A105, A36, Rst37.2, St37.2, C22.8, SA350 LF2/LF1, Q235, Q345, SS400, SF45, S235GRJ2,
304,304L,316,316L
Surface treatment:
Antirust oil, yellow, epoxy coating, nylon surface,hot galvanized,electrical galvanized
Making type:
Forged or casted
Standard:
ANSIB16.5/B16.47/B16.48/B16.36, ASME,MSS SP44, AWWA C207,DIN2527, DIN2566, DIN2573,DIN2576,DIN2641,DIN2642, DIN2655, DIN2656, DIN2627, DIN2628,DIN2629, DIN 2631, DIN2632,DIN2633,DIN2634,DIN2635,DIN2636, DIN2637, DIN2638, DIN2673 BS4504/10, JIS, EN 1092, NF, API590 FIG.8, GB, etc.
Pressure grade:
ASTM B16.5: 150LBS, 300LBS,400LBS, 600LBS, 900LBS, 1500LBS, 2500LBS
DIN: 6Bar, 10Bar, 16Bar, 25Bar, 40Bar
BS4504: PN2.5-PN40
BS10: Table D, E, F, H
JIS: 5K,10K, 16K, 20K, 30K
