Stainless Steel Perforated Spiral Welded Pipe / Punched Metal Pipe
For Filter Tubes
Perforated Metal Tubes are popularly used in filter products as
support tubing, and sometimes it is used directly as filter tubes
and cylinders for certain industries.
Material: Stainless Steel, type 304,321,316, 316L and so on.
Perforated seam is welded in straight line; with unique spiral
distribution formed by spiral welding and greater filter strength.
When squeezed in some parts from external, under outside pressure,
the forced part will have reduced or closed gap and ensures the
reliability of sand control. Made with sophisticated technology,
stainless steel filter glove has openings in the side with reduced
direct corrosion to the perforated welded sand pipe. Seam gap in
the processing ranges between 20 mm-0.7mm. The uniform opening
ensures the processing difference is within the error scope allowed
- 0.015 mm, also ensures the accuracy of its filter requirements.
Using high precision perforating technology, the effective slotting
length is the three to five times of common cut seam tube and two
to three times of common perforated seam tubes.