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Tianjin Wanlei Steel Pipe Co.,Ltd
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WN SO PL Flanges
We export raised face welded neck flanges and slip-on flanges as per ANSI/ASME B16.5 all over the world. Do you need flanges? Our products are premium quality and affordable. Please click here to purchase.
Description
WN SO PL Flanges
WN Flanges
Full name: Welded neck flange
Connection type: Butt welding
Sealing face: Raised face (RF), female face and male face (FM & M), tongue face and groove face (T & G), flat face (FF), ring type joint (RTJ)
Introduction: This flange is circumferentially welded into the system at its neck which means that the integrity of the butt welded area can be easily examined by radiography. The bores of both pipe and flange match, which reduces turbulence and erosion inside the pipeline. The weld neck is therfore favoured in critical applications.

SO Flanges
Full name: Slip-on flange
Connection type: Downward welding or flat welding
Sealing face: Raised face (RF), female face and male face (FM & M), tongue face and groove face (T & G), flat face (FF), ring type joint (RTJ)
Introduction: This flange is slipped over the pipe and then fillet welded. Slip-on flanges are easy to use in fabricated applications.

PL Flanges
Full name: Plate flange
Connection type: Downward welding or flat welding
Sealing face: Raised face (RF), flat face (FF)
Introduction: This flanges, known as flat flanges, are typically round and flat. Compared with the slip on flanges, PL flange has no hub and has different sealing faces. They are mainly used in low-pressure applications and are a cost-effective solution for jointing pipes.

The differences between WN and SO/PL flange
|
Flanges |
WN Flange |
SO/PL flange |
|
NDE method |
Radiographic testing |
Penetrant testing |
|
Seam type |
Girth welds |
Fillet weld seam |
|
Material |
Forgings |
Steel plates |
|
Pressure rating |
1-25 MPa |
0.6-4.0 MPa |
|
Connection |
Connect with pipes and fittings (for example steel elbows, tees, reducers...) |
Connect with steel pipes only |
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