Durable Sintered Filter Tube from China Suppliers - High-Efficiency Filtration Solutions by Our Factory
Features of sintered filter tube
Material Diversity
Optional stainless steel (304/316L), titanium, nickel-based alloy and other corrosion-resistant materials.
Structural Advantages
Porosity up to 35-45%, pore size range 0.22-100μm, support high precision filtration.
Deep Filtration
The curved pore structure extends the impurity retention path and improves the dirt-holding capacity.
Parameters of sintered filter tube
1. Size specification
- 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.
2. Filtering performance
- Precision: 0.22-100μm (sub-micron ultra-fine filtration can be customized)
- Porosity: 28-50%, ensuring high flow rate and low pressure loss.
3. Pressure resistance and temperature resistance
- 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
1. Raw material processing:
Metal powder graded and screened or screen stacked and pressed to ensure particle/screen uniformity.
2. Molding process:
Powder is pressed and shaped by mold, or silk screen is folded into tubular structure.
3. High temperature sintering:
Sintering at high temperature (approx. 1500°C) in a vacuum furnace to form a stable porous structure.
4. Post-treatment:
Cleaning, polishing, surface coating (e.g. to enhance corrosion resistance).
5. Quality control and packaging:
Porosity, pore size distribution, pressure resistance test and other full-process testing.
Advantages of sintered filter tube
Material Performance
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.
Structural Advantages
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.
Application Flexibility
Can be customized tube, plate, sheet and other forms, to adapt to the needs of complex equipment.
Application of sintered filter tube
Chemical & Petroleum
Catalyst recovery, oil refining, gas desulfurization (such as hydrogenation cracking circulating oil filtration).
Pharmaceutical & Food
Injection decarbonization, beverage clarification (such as mineral water, beer filtration).
Environmental & Water
Industrial wastewater heavy metal removal, seawater desalination pretreatment.
Aerospace & Energy
Aviation fuel purification, nuclear industry coolant filtration.
Electronics & Semiconductor
Ultra-pure water preparation, gas dust removal (such as semiconductor production environment purification).
Frequently Asked Questions (FAQ)
What materials can be selected for sintered filter tubes?
Sintered filter tubes offer high material diversity, including stainless steel (304/316L), titanium, nickel-based alloys, and other corrosion-resistant materials suitable for demanding industrial applications.
What is the filtration precision range of these tubes?
The filtration precision of the sintered filter tube ranges from 0.22μm to 100μm, with porosities ranging from 28% to 50% to ensure high flow rates and minimal pressure loss.
Can sintered filter tubes withstand high temperatures and pressures?
Yes, they are designed for harsh environments. They can withstand working temperatures from -200℃ up to 1000℃ (especially stainless steel models) and pressure strengths up to 2MPa (higher for titanium models).
Are these filter tubes cleanable and reusable?
Yes. Due to their robust structural design, sintered filter tubes possess excellent backwashing regeneration capacity, making their service life 3 to 5 times longer than standard filter cartridges.
What customization options are available for size and shape?
We offer flexible customizations. The outer diameter ranges from 4mm to 220mm, and the length ranges from 4mm to 1000mm (up to 2000mm for special requests). They can also be customized into tubes, plates, sheets, and other shapes.
In which industries are sintered filter tubes commonly used?
They are widely applied in chemical & petroleum industries (catalyst recovery), food & pharmaceuticals (clarification and decarbonization), water treatment (desalination), aerospace (fuel purification), and electronics (semiconductor environment purification).