Durable Sintered Filter Tube from China Suppliers - High-Efficiency Filtration Factory for Various Industries
Features of sintered filter tube
Optional stainless steel (304/316L), titanium, nickel-based alloy and other corrosion-resistant materials.
Porosity up to 35-45%, pore size range 0.22-100μm, support high precision filtration.
The curved pore structure extends the impurity retention path and improves the dirt-holding capacity.
Parameters of sintered filter tube
- Outer diameter: 4-220mm (support customization)
- Length: 4-1000mm (up to 2000mm for special requirements)
- Wall thickness: adjusted according to the application scenario, taking into account the strength and permeability.
- Precision: 0.22-100μm (sub-micron ultra-fine filtration can be customized)
- Porosity: 28-50%, ensuring high flow rate and low pressure loss.
- Pressure strength: up to 2MPa (titanium material can be higher)
- Working temperature: -200℃ to 1000℃ (stainless steel material is suitable for high temperature environment).
Production Process of sintered filter tube
Metal powder graded and screened or screen stacked and pressed to ensure particle/screen uniformity.
Powder is pressed and shaped by mold, or silk screen is folded into tubular structure.
Sintering at high temperature (approx. 1500°C) in a vacuum furnace to form a stable porous structure.
Cleaning, polishing, surface coating (e.g. to enhance corrosion resistance).
Porosity, pore size distribution, pressure resistance test and other full-process testing.
Advantages of sintered filter tube
- Resistant to strong acid, strong alkali, organic solvents, suitable for corrosive media (such as hydrochloric acid, aqua regia).
- No deformation of the aperture at high temperature, suitable for steam, thermal oil and other high-temperature scenarios.
- Seamless one-piece molding, no shedding particles, in line with food/pharmaceutical health standards.
- Backwashing regeneration capacity, service life up to 3-5 times longer than ordinary cartridges.
Can be customized tube, plate, sheet and other forms, to adapt to the needs of complex equipment.
Application of sintered filter tube
Catalyst recovery, oil refining, gas desulfurization (such as hydrogenation cracking circulating oil filtration).
Injection decarbonization, beverage clarification (such as mineral water, beer filtration).
Industrial wastewater heavy metal removal, seawater desalination pretreatment.
Aviation fuel purification, nuclear industry coolant filtration.
Ultra-pure water preparation, gas dust removal (such as semiconductor production environment purification).
Frequently Asked Questions
Sintered filter tubes can be manufactured using a diversity of materials, including stainless steel (304/316L), titanium, nickel-based alloys, and other corrosion-resistant options.
They offer high-precision filtration with a pore size range of 0.22 to 100μm and a porosity typically between 28% and 50% (often 35-45% depending on structural design).
They can withstand working temperatures ranging from -200℃ up to 1000℃ (especially stainless steel) and pressure strengths up to 2MPa, with titanium variants potentially supporting higher pressures.
Yes. Sintered filter tubes feature backwashing regeneration capacity, which extends their overall service life to 3-5 times longer than ordinary filter cartridges.
Standard custom dimensions include outer diameters of 4-220mm and lengths of 4-1000mm (up to 2000mm for special requirements). Wall thickness is adjusted based on specific application needs.
They are widely applied in chemical & petroleum (catalyst recovery), pharmaceutical & food (beverage clarification), environmental & water treatment, aerospace & energy, and electronics & semiconductor sectors.