What is socket welded pipe fittings?
Socket Weld fittings (SW) are a type of forged high-pressure small-diameter pipeline connector, which involves inserting the pipeline into the socket of the fitting and achieving a permanent sealing connection through fillet welds. It is the mainstream connection solution for small-diameter high-voltage systems in industries such as petroleum, chemical, and power.
Advantages and limitations
| advantage | |
| Easy installation | No need for pipe end bevel, making it easier to control welding of small-diameter thin-walled pipes. |
| Stable structure | high strength of fillet welds, reliable sealing, suitable for high-pressure, flammable/toxic media. |
| Good economy | smaller diameters save more time and materials than butt welding. |
| Simple testing | usually magnetic particle/penetrant testing is sufficient, no RT radiographic testing is required. |
| limitation | |
| Caliber limited | generally ≤ DN50, not applicable for large calibers |
| The inner wall is not smooth | the fillet weld and the socket step will cause flow resistance, which is not suitable for working conditions that require smooth inner walls |
| Weak fatigue resistance | Geometric mutations in fillet welds and lower resistance to cyclic loads compared to butt welding |
| Gap corrosion risk | The gap between the socket is prone to storing media, and strong corrosion/gap corrosion conditions are prohibited |
Summary
We are able to provide high quality socket welded pipe fittings according to customers' needs and look forward to your purchase.
