Larger diameter welded pipes/ PVC Coated Spiral Welded Perforated Tube used as Support core for strainers   

 The strength of the spiral welded pipe is generally higher than straight seam welded pipe. Larger diameter can be produced by narrow black with spiral weld seam. We can also produce it with different pipe diameter using the same width of black. But compared with the same length of straight seam welded pipe, the length of welding line increased 30-100%, and the production speed is low. Therefore, relatively small diameter welded pipe are mostly adopts the straight seam welded pipe, larger diameter welded pipes are usually spiral welded pipe.

Description:

Aka: Spiral Perforated Tube/Pipe, Center Tube for Filter Element

Material: Ss304/304L/316/316L stainless steel, Mild steel, Aluminum, Copper, Monel, Hastelloy, Inconel, Titanium, etc.

Hole Diameter: Various to meet different requirements for tubing strength and filtration

Tube Diameter: 1/4’’-12’’ (6.35 ～ 304.8mm)

Wall Thickness: 0.5～2.5mm (special sizes can be customized )

Length: Customized

Finish:

Precise rolling: Hold tight tolerances or improve appearance and against high External pressure; Plating: Prevent from corrosion for mild steel/carbon steel

Oiling, Degrease, Grit Blast, Acid pickling and passivation treatment

Electro polish to the stainless steel tubes

Coated by PVC, Epoxy and many others according to the requirements.

Feature: Precise rolling, high resistance to external pressure. Can be used as filter frame, big bearing, high roundness, precise filtering capacity.

Basic Specification:

(1) Diameter and wall thickness: