Steel flanges are used to create a solid connection in pipelines. Flanges are connected with bolts, which makes it easier to maintain, repair or replace parts of a pipeline. Van Leeuwen supplies carbon steel flanges in many different types, dimensions, pressure classes and gaskets. It depends on the application of the pipeline to determine which flange is suitable.
| Product | Forged carbon steel flanges to EN standards |
|---|---|
| Standard | EN 1092-1 |
| Dimensions | NW 15 / 21.3 x 2 mm to NW 1200 / 1220 x 12.5 mm |
| Delivery conditions |
Blind: gasket face form A (up to PN 40) or form B2 (PN 63 and 100) Welding neck: gasket face Form B1 (up to PN 40) or form B2 (PN 63 and 100) |
| Materials | P250GH |
| Surface | Anti-rust oil (transparent), threaded flanges also in galvanized |
| Certification | 3.1 acc. to EN 10204 |
| Type |
Type 1 Type 2 Type 5 Type 11 Type 12 Type 13 Type 32 |
| Product | Carbon steel flanges according to ASTM/ASME standards |
|---|---|
| Standard |
ASME B16.5, EN 1759-1, ASME B16.47A for flanges > 24” and BS3293 for slip-on flanges > 24” |
| Dimensions |
Outside diameter ½” - 48” for ASME B16.47A: 28” to 36” for BS 3293: 30” to 36” Wall thickness: STD, XS, XXS and Sched. 20 – 160 |
| Delivery conditions |
Welding neck and blind flanges also also available as semi-finished, large raised face |
| Materials |
A/SA 105N / C21 / P280GH A/SA 350M LF2 Class 1 |
| Surface | Mill standard varnish or galvanized |
| Certification | 3.1 acc. to EN 10204 |
| Type |
Blind / Threaded / Slip on / Lap joint (FF) / Socket weld / Welding neck (RF) Blind flanges + Welding neck flanges partially available in RTJ |
| Pressure | Pressure class 150 / 300 / 600 / 900 / 1500 / 2500 lbs |
