Product Name: Duplex Steel Lap Joint Flange
Type: Lap Joint Flange
Design Standard: ASME B16.5
Material: ASTM A182 F51, Duplex Stainless Steel
Size: 3 Inch, DN80
Class Rating: Class 150 LB, PN20
Sealing Facing: Raised Face
Source: https://www.landeeflange.com/duplex-steel-lap-joint-flange-astm-a182-f51-3-inch-cl150.html