... , Water Systerm,etc 3.Reliable Quality ANSI Carbon Steel Flange Form: Socket Weld,Slip on,Blind,Lapped,Screwed,Weld Neck,Long Weld Neck ... rating: class 150LB,300LB,400LB,600LB,900LB,1500LB,2500LB Dimensions: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48, API ...