Фланец свободный (Slip-On Flange)

Slip-on flanges are designed to slide over the pipe end and are then fillet welded both inside and outside to secure the connection. This design offers lower material cost and easier alignment compared to weld neck flanges, making them popular for low to medium pressure utility and water service applications. The slip-on design reduces the accuracy needed in pipe cutting, as the pipe can be adjusted slightly within the flange bore before welding.

Our slip-on flanges are manufactured to ASME B16.5 with flat face (FF) or raised face (RF) options. They are available in Classes 150 through 1500, though they are most commonly used in Class 150 and Class 300 services. While they require two fillet welds and have a slightly lower fatigue life than weld neck flanges, they remain one of the most economical and widely used flange types in industrial piping.