Product Overview
How to clean bronze powder sintered filter discs?
Physical cleaning
Backwashing: Reverse water flow (0.4–0.6MPa) to flush the filter with a cycle of 1–4 days, suitable for loose particulate matter.
Ultrasonic cleaning: with neutral cleaning agent, frequency 40kHz, time 5–10 minutes, can remove deep dirt.
Chemical cleaning
Pickling process:
Soak in 5% nitric acid solution for 8 hours (40°C) → rinse with deionized water until neutral →0.4MPa compressed air and blow dry.
After strong acid cleaning, it needs to be thoroughly rinsed to avoid residual corrosion of the filter.
Alkaline washing process :
Diluted soda ash solution soaked for 30-60 minutes→ ultrasound-assisted cleaning → rinsing with pure water.
Stubborn stain treatment
Viscous filter cake: first soften with warm water (40-60°C) for 10 minutes, and then blow back with gas and water (0.6MPa nitrogen pulse).
High hardness deposits: high-pressure pulse blowback (0.6–0.8MPa) mechanical vibration-assisted peeling.
After cleaning, drying and testing
Blow dry with ≥0.4MPa of pure air to avoid moisture residue and bacteria.
Check whether the pores of the filter plate are unobstructed, and the pressure loss exceeds 50% of the initial value and needs to be replaced.
Maintenance recommendations
Establish cleaning records, including time, method and effect evaluation.
Avoid scratching with hard objects such as wire balls to prevent damage to the sintered layer.
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Bronze Powder |
| Standard Diameters | 2mm to 500mm (Custom sizes available) |
| Standard Thicknesses | 1mm to 100mm (Custom thicknesses available) |
| Filtration Ratings | 1, 2, 5, 10, 20, 40, 60, 80,100 microns |
| Maximum Operating Temperature | 400℃ (1650℉) |
| Maximum Differential Pressure | 40 bar (580 psi) depending on dimensions |
| Porosity | 30% to 45% (Adjustable based on requirements) |
| Surface Finish | Standard or Electropolished |
| Certifications | ISO 9001, Material Certification, FDA Compliance |
Customization Available
Most of our products are custom-manufactured based on customer specifications. We can produce filter discs according to your exact drawings, dimensions, and performance requirements. Our engineering team is available to assist with design optimization for your specific application.
Applications
Bronze filter are widely used in food and beverage, pharmaceuticals, chemicals, petrochemicals, and wastewater treatment. They handle applications like liquid and gas filtration, cryogenic gas processing, and corrosive media separation.
With high filtration capacity, chemical and temperature resistance, and easy maintenance, they are ideal for reliable and efficient industrial filtration.
Ready to Order or Need Technical Assistance?
Contact our technical team to discuss your specific requirements or to request a quote.
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Frequently Asked Questions
Sintered bronze filter discs are porous metal filter discs made by compacting and sintering bronze powders, providing powerful filtration for liquids and gases in industries such as chemical processing and pharmaceuticals.
NESIA provides discs with filtration ratings from 0.5 to 200 microns, with custom options available to match specific application requirements.
Depending on the application, cleaning them regularly using backwashing or ultrasonic methods and storing them in a dry, clean environment can maintain performance and extend life.
