Sintered Porous Metal Cylindrical Filters
Sintered Porous Metal Cylindrical Filters | Porous Metal Filter Elements
Sintered Porous Metal Cylindrical Filters are manufactured using powder metallurgy techniques, where calibrated metal powder is compacted and sintered at high temperature to form a seamless, rigid tube with a three-dimensional, interconnected pore structure. This results in a true depth filter medium, offering exceptional performance in harsh thermal and chemical environments where mechanical strength and filtration consistency are paramount.
Advantages of Sintered Porous Metal Cylindrical Filters
- True Depth Filtration: Captures particles throughout the entire matrix wall thickness, offering high dirt-holding capacity.
- Exceptional Strength & Durability: Withstands very high pressures (burst pressures), thermal shock, and mechanical vibration.
- Extreme Temperature Resistance: Capable of continuous operation at temperatures exceeding 750°C (up to 900°C for specific alloys like Inconel).
- Broad Chemical Compatibility: Performance depends on the selected powder alloy.
- Excellent for Backpulse Cleaning: The rigid, porous structure is ideal for pulsed-jet cleaning systems.
Specification of Sintered Porous Metal Cylindrical Filters
- Materials: Stainless steel (304, 316L) powder, Bronze, Nickel, Inconel 600/625, Hastelloy X.
- Pore Size: Defined by mean pore diameter or bubble point test, typically ranging from 0.2 μm (sub-micron) to 100 μm.
- Permeability: A critical parameter, ranging from 10 to over 300 L/min·cm² at a given pressure, inversely related to pore size and wall thickness.
- Porosity: Typically 25% to 45%, influencing flow resistance and dirt capacity.
- Dimensions: OD from 10 mm to 300 mm; Lengths from 20 mm to 1200 mm.
- Operating Limits: Temperature up to 900°C; Pressure differentials often exceeding 50 bar, depending on grade and geometry.
Applications of Sintered Porous Metal Cylindrical Filters
- Hot Gas & Steam Filtration: Combined cycle power plants, incinerator off-gases, process steam.
- Catalyst Support & Recovery: Fixed-bed reactor internals, fluidized bed separators.
- Fluidization & Aeration: Spargers, diffusers for bioreactors and wastewater treatment.
- High-Temperature Chemical Processes: Ammonia production, reforming gases.
- Nuclear Industry: Off-gas and coolant filtration.
Catalyst Support & Recovery
Water Treatment and Liquid–Solid Separation
Chemical Processing and Petrochemical Refining
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