1. SS Flanges Stub End 2. Size: 1/2"-24" 3. Pressure Class: 150-2500LBS ... Class :300, 400 , 600 , 900* API 6A :WELDING NECK FLANGE, THREAD FLANGE,BLIND FLANGE.Pressure :2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, 20000Psi ... and special design are warmly welcome. Stainless Steel Flanges Stub End