The Duplex Stainless Steel Slip On Flange, produced by a specialized plant, is designed to ANSI B16.5 standards and crafted from ASTM A182 F51 material. This 3/4 Inch (DN20) flange is rated for a Pressure Class of 150 LB and PN20. It features a standard thickness (SCH STD) and a Raised Face (RF).