Spiral welded perforated tube materials: stainless steel 304, 316, 316 L.

The tube Specifications:
The diameter: 1-230mm
The thickness: 0.4-3.5mm
The length: no limitation
The hole type: bridge, round hole and so on.

A: 60° perforation pattern or staggered pattern: hole diameter * hole diameter*90.69% / hole center distance * hole center distance

B: 180° perforation pattern or straight pattern: hole diameter * hole diameter * 78.5% / horizontal diameter center distance * vertical diameter center distance

C: Other special cases as follows

The specifications and materials of hole punching can be produced and installed in accordance with the needs of users.

Features:
* Excellent corrosion-resisting
* Tubes are available with an internal spring for additional strength
* With side opening exterior protection cover (optional)
* Unique design of filter ring
* Spiral welded perforated tube is approximately 15% stronger than longitudinally and welded tube
* Easy for installation and less work time
* Unlimited tube lengths
* Lighter wall thickness can be used

Applications:

· Acoustical dampening

· EMI shielding

· Oil Rig Filtration

· Structural Support

· Safety guards

· Liquid, gas, or vapor diffusionr

· Grills or trim

· Liquid Filtering

· Light diffusion

· Decorative items

· Structural Members

· Agricultural Strainers & Filter Elements

Stainless Steel Spiral Welded Pipe Stainless Steel Perforated Filter Tube specification:

Spiral Welding Perforated Tube production process:

• the first will be punching mesh belt according to customer requirements
• after the punching will mesh belt by the spiral bending forming, argon arc welding.
• Surface treatment: mild steel to prevent corrosion, oil or to oil, sand blasting processing. Pickling or shield, stainless steel electrolytic polishing, surface coating, epoxy coating, or other etc.