STEEL FLANGE AWWA C207 TABLE 2 CLASS D SOFF A240 ASTM DIN 175 - 150PSI
STEEL FLANGE AWWA C207 TABLE 2 CLASS D SOFF A240 ASTM DIN 170 - 150PSI
High pressure steel flange, forged flanges, Table 2 AWWA C207 Class D Ring & Blind Flanges
The AWWA C207 is an American National Standard for steel pipe flanges for waterworks service, sizes 4″ through 144″ (100 mm through 3600 mm). The AWWA is the abbreviation of “American Water Works Association”. The origin of AWWA C207 can be dated back to year 1942 when a paper proposing standards for slip-on steel-ring flanges for welding to steel water pipes. This standard was necessary because the lowest pressure ratings for steel flanges at that time were those having cold-water pressure ratings of 275 psi (1896 KPa). The ratings are far higher than those ordinarily needed for water service (150 psi / 1034 KPa) primary pressure rating.
| Type | WN, SO, PL, BL, SW, THRD, LJ, Spectacle Blind |
| Standard | ASME,MSS, JIS, EN,GB, DIN,GOST,BS,others |
| Size | 1/2” - 80” |
| Pressure | 150#-2500#, PN6-PN40, 5K-16K |
| Steel Grade | A105 A350 LF2, LF3 A182 F5, F9, F91, F11, F12, F22 A182 F304, F304L, F316, F316L, F321 A694F42, F46, F56, F60, F65, F70,F80,F100 ,API 5L Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555 |
| Surface | Vanish Coating, Black Oil coating as per customer’s requirement |
| Test | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Blow Test, Impact Test), Exterior Size Inspection |
| Mill Test Certificate |
EN 10204/3.1B
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