This European standard specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000. This standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange face surface finish, marking, materials, pressure/ temperature ratings and flange masses.
| Size | 1/2"-24"26"-48" |
| Rating | 150LB/300LB/600LB/1500LB/2500LB |
| Standard | ASME B16.5, ASME B16.47A, ASME B16.47B, MSS SP 44, DIN 2632, DIN2633, DIN2634, DIN2635, DIN2636, JISB2220, BS4504, GB, etc |
| Material | Carbon steel: A105, A350 LF2, A694 F52, F65, Q235 etc. Stainless steel: ASTM A182 F304, 304L, 316, 316L, 321, 1Cr18Ni9Ti, 00Cr19Ni10, A182 F51, F53, F55 etc. |
| Surface | usually paint black, galv., for carbon steel bend and alloy steel bend, and for stainless steel bends we usually dont do anything on the surface |
| Certification | ISO 9001:2015 |
| Packing | plywood cases, pallets, or as per your request. |
| Application | Petroleum, chemical, machinery, electric power, shipbuilding, papermaking, construction etc |
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