About AS4087 Flanges
AS4087 flanges meet the AS4087 flange standard, which specifies a wide range of pressure classes and sizes. These flanges are used in water and wastewater pipeline systems. They come in slip-on and blind styles, and sizes range from DN50 (2") to DN1200 (48"). The standard applies to stainless steel flanges in the PN16, PN21, and PN35 pressure classes. Tesco Steel & Engineering is a trusted manufacturer of AS4087 flanges, known for consistent quality and prompt delivery across industries. We supply flanges that meet tough performance standards and are ready for both general and high-pressure applications.
AS4087 flanges replaced the earlier AS2129 standard. While AS2129 included some low-pressure and smaller flanges, AS4087 focused on DN50 to DN1200 size range and introduced clear pressure classifications such as AS4087 PN21 and AS4087 class 16. This change made it easier for engineers to make decisions by directly matching pipe systems to the appropriate pressure ratings. The newer standard ensures greater consistency in flange dimensions and compatibility.
