... Class1500,Class2500SIZE: 1/2" NB TO 48" NB 2.DIN FLANGESStandard: DIN2527,DIN2566,DIN2573,DIN2576,DIN2641,DIN2642, DIN2655,DIN2656 ... TYPE11(Weld-neck Flanges); TYPE12(Hubbed Slip-on Flanges For Welding); TYPE13(Hubbed Threaded Flanges)Pressure ClassPN2.5PN6PN10PN16PN25PN40PN63PN100SIZE: 1 ... and alloy steel flanges standard: ANSI, JIS, BS, DIN, EN,GBsize: 15mm to 3000mm pressure:75bls to 2500bls ...