Product Name: ASME B16.5 Slip-On Flanges
Type: Slip-On Flange (SO)
Design Standard: ASME B16.5
Material: ASTM A182 F55, Super Duplex Stainless Steel
Size: 3 Inch, DN80
Pressure: Class 150 LB, PN20
Sealing Facing: Raised Face
Source: https://www.landeeflange.com/asme-b16-5-slip-on-flanges-astm-a182-f55-3-in-raised-face.html