... , Threaded flanges , Socket Welding flanges , Blind flangesPressure Grade : 6 Bar , 10 Bar , 16 Bar , 25 Bar , 40 BarSize : DN10 - DN 10003 ... ( Hubbed Threaded flanges )Pressure Grade : PN2.5 , PN6 , PN10 , PN16 , PN 25 , PN40 , PN63 , PN100Size : 1/2" - 48"6. Gost flangeType ... Butt-Welded flanges (GOST 12821-80)Pressure Grade : PN0.6 - PN 10.0 (100/2)Size : 1/2" - 48"Features:1.Low ...