Perforated Spiral Welded Tube

Spiral Welded Tube/Pipe       perforated  spiral welded pipe Perforated spiral welded pipe is made with steel belt perforated, then coiled to the unfinished piping according to certain spiral line angle (formation angle), then finished with sub arc welding of the pipe seams. The spiral angle degree of the welding seam of spiral welded pipe is 50-75 degrees generally, therefore the spiral welded joint place resultant stress is 60-85% of that of the straight seam welded pipe. Under the same working pressure, the wall thickness of spiral welded pipe may be less compared to the straight seam welded pipe wall thickness. The spiral welded pipe is mainly used in the petroleum industry as interior and outer protective covers for petroleum sand control pipes. Tube wall thickness: 1-4mm 
Tube diameter: 30mm-300mm 
Length: 0.1-12m   Bridge Slot Screen Pipe
1.material:304 304L 316 316L
2.diameter:35-600mm
3.minimum slot:0.05mm   
4.unit length:1-5.8m Advantages:
 
1) High strength through resistance to twisting, compressive, and tensile forces 
2) A smooth bore that does not impede the passage of probes, tools, etc. 
3) Formations with large particle sizes
4) Large diameter wells 
5) Low to medium flow rates As a professional  manufacturer, we can ensure you the good quality and good service due to:   ♥  Our professional engineer and workers all with at least 6 years experience which can ensure you the high technic and      efficiency of the production;    ♥  Our 10 years' experience in international trade will ensure you the consummate in the whole process of trading.   ♥  Furtherly our products have been exported to more than 15 countries all over the world and gained  a good reputation from our customers,it is the headspring of our big confidence  to write to you to enlarge our business     Thanks for viewing our products, what are we waiting for? Just send inquiry for a quotation   pls throw these brokers(middleman) now, more and more profits will coming.   please free contact us: trade manager:   cn1000373783 email:   yediwiremesh(at)sina(dot)com