Product Name: Stainless Steel Slip-On Flanges
Type: SO Flange
Design Standard: ANSI B16.5
Material: ASTM A182 F316L, Stainless Steel
Size: 3 Inch, DN80
Pressure: Class 150 LB, PN20
Sealing Face: Raised Face

Source: https://www.landeeflange.com/stainless-steel-slip-on-flanges-a182-f316l-3-in-cl150-rf.html