Product Name: ASME B16.5 Flexible Joint
Design Standard: ASME B16.5
Material: Stainless Steel
Size: 12 Inch, DN300
Pressure: Class 150 LB, PN20
End Connection: RF Flanged
Service: Tank Outlet

Source: https://www.landeepipefitting.com/asme-b16-5-flexible-joint-stainless-steel-12-in-cl150-rf.html