Pleated Stainless Steel Filter Cartridge for High Temperature Corrosive Filtration
Introduction:The pleated stainless steel filter cartridge is a reusable all-metal filter element, constructed from stainless steel fiber sintered felt and stainless steel woven mesh through pleating processing. It is installed inside matching water filter housing, and commonly works together with a self-cleaning filter in multi-stage filtration systems. Featuring high porosity, enlarged filtration area, strong dirt holding capacity and excellent mechanical strength, this metal filter can withstand extreme operating temperatures up to 650℃ and pressure drop of 5 bar. It is resistant to fiber shedding, easy to clean and regenerate, making it suitable for corrosive liquid, gas, high-temperature steam, lubricating oil, chemical solvent, food and beverage filtration. This article covers its working principle, layered structure, technical parameters, core advantages, application fields and selection guidance, helping industrial buyers source reliable metal filtration components for harsh process conditions.
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Product Introduction
The pleated stainless steel filter cartridge is a high-performance metal filter element designed for demanding industrial filtration. It can be fitted into custom water filter housing, and forms a graded filtration system with upstream self-cleaning filter. The self-cleaning filter removes large debris and coarse sediment by automatic backwashing, while the pleated stainless steel filter cartridge performs precise fine filtration to capture tiny contaminants that pass through the primary stage. Its main filter medium consists of stainless steel fiber sintered felt and stainless steel woven mesh after pleating. The core filtration layer is stainless steel fiber sintered felt, a porous deep filter material manufactured by high-temperature sintering of stainless steel fibers. Thanks to this special material, the cartridge delivers high porosity, larger effective filtration area, superior dirt holding capacity, solid structural strength, anti-shedding property, easy cleaning and outstanding high-temperature resistance. The filter medium adopts interwoven linear fiber structure with flat and uniform pores, which belongs to surface filtration that intercepts pollutant particles on the medium surface and separates impurities from the flowing fluid. For modern industrial processes with high-temperature and high-pressure chemical procedures, this metal mesh filter medium can endure harsh working environments, hold large amounts of contaminants and support repeated regeneration, bringing a cost-effective and dependable filtration solution for end users. It is manufactured from 304 or 316 stainless steel with multi-layer sandwich structure, protected by outer coarse mesh wrapping. The pleated design greatly expands the filtration area, raises flow rate, reduces pressure drop and increases dirt loading capacity. Its fused sintered structure can resist continuous operating temperature up to 650℃ and pressure drop of 5 bar. The compact industrial structure prevents fiber shedding and material precipitation, and the filter cartridge can be cleaned and reused many times.
Working Principle
The pleated stainless steel filter cartridge adopts pleated surface and gradient depth composite filtration. When fluid passes through the folded stainless steel medium, particles larger than the pore size are trapped on the outer surface of the sintered felt layer. The multi-layer sandwich structure uses coarse outer mesh to protect the fine inner filter layer. Large particles are blocked by the outer protective mesh, while fine particles are intercepted by the sintered fiber felt, slowing down surface blinding and extending service cycles.
Within a complete staged filtration system, the upstream self-cleaning filter acts as the primary coarse barrier. It triggers automatic backwash according to differential pressure or set time to flush out large impurities. The downstream water filter housing accommodates this pleated stainless steel filter cartridge for precision filtration.
As contaminants accumulate on the pleated medium, the differential pressure gradually rises. Once the pressure difference reaches the preset threshold, the cartridge can be regenerated by backwashing, ultrasonic cleaning or chemical soaking. After proper cleaning, its filtration performance can be restored for repeated use. Unlike disposable polymer filter cartridges, this all-metal pleated element is reusable and cuts long-term consumable investment.
Main Structure
Filter Medium:
Stainless steel fiber sintered felt + stainless steel woven mesh, pleated formation
Multi-layer Sandwich Structure:
Outer coarse protective mesh, inner fine sintered felt layer
Inner Support Core:
Perforated stainless steel core, supports the pleated medium under pressure
End Fitting:
Threaded, bolt or custom adapter, for installation and sealing inside water filter housing
Sealing Component:
High temperature resistant metal or FKM seal, adapted to high heat and corrosive media
Core Advantages
Ultra-high Temperature Resistance:
Sintered metal structure can continuously work up to 650℃, ideal for high-temperature steam and hot process fluid
Pleated Enlarged Area:
Folding design maximizes filtration area, boosts flow rate and lowers pressure drop
High Dirt Holding Capacity:
Gradient fiber structure can accumulate more contaminants before cleaning
Robust All-metal Structure:
304 / 316 stainless steel option, high mechanical strength, anti-deformation under 5 bar pressure drop
Anti-shedding & No Secondary Pollution:
Fused sintered construction, no fiber falling off or material precipitation
Reusable and Regenerable:
Easy backwash, ultrasonic or chemical cleaning, multiple service cycles
Strong Corrosion Resistance:
Adaptable to corrosive liquids and various industrial gases
Perfect Match with Staged Filtration:
Can be combined with self-cleaning filter and water filter housing for full-process filtration
Technical Specification Table
| Item | Parameter |
|---|---|
| Material | 304, 316 Stainless Steel |
| Filter Medium | Stainless steel fiber sintered felt + stainless steel woven mesh, pleated |
| Max Working Temperature | 650 ℃ |
| Max Allowable Pressure Drop | 5 bar |
| Structure | Multi-layer sandwich pleated structure |
| Cleaning Method | Backwash, ultrasonic cleaning, chemical cleaning |
| Applicable Media | Corrosive liquid, gas, oil, solvent, steam, high viscosity liquid, food liquid |
Application Scenarios
Corrosive Fluid & Gas Filtration:
Separation of corrosive industrial liquids and process gases
Lubrication & Hydraulic Industry:
Filtration of machine oil, cutting oil, heavy oil and fuel oil
Chemical Industry:
Purification of agrochemical raw materials and organic solvents
Adhesive Industry:
Filtration of latex, glue and high viscosity resin
Pure Water System:
Purification of pure water and deionized water
Steam & Gas System:
Filtration of high-temperature steam and fuel gas
Food & Beverage Industry:
Filtration for wine, fruit juice and beverage processing
Buying & Selection Guide
When selecting the pleated stainless steel filter cartridge, buyers need to confirm filtration precision, dimension, end connection style, working temperature, fluid medium and the inner size of the water filter housing. If the incoming fluid contains plenty of coarse sediment and large solids, it is recommended to install a self-cleaning filter upstream to reduce contaminant load and extend the service interval of the pleated stainless steel cartridge. For general oil, water and non-corrosive media, 304 stainless steel is the cost-effective choice. For chloride-containing brine and strong corrosive solvents, select 316 stainless steel. For high-temperature steam and gas working conditions, high-temperature resistant sealing materials are required. We can customize outer diameter, length and end fittings according to your filter housing and pipeline requirements.
FAQ
Q1: What is the difference between pleated stainless steel cartridge and sintered metal mesh cartridge?
A: The pleated version adopts folded sintered felt, which owns much larger filtration area and higher flow rate. Sintered metal mesh is flat stacked mesh, more suitable for low flow and high pressure working conditions.
Q2: How many times can this pleated stainless steel cartridge be cleaned?
A: It depends on fluid impurity condition. Under normal working conditions, it can be cleaned and regenerated dozens of times until the medium is permanently blocked or mechanically damaged.
Q3: Can this cartridge be installed with self-cleaning filter and water filter housing?
A: Yes. We can customize size and end connector to fit standard water filter housing, and it is widely used in series with self-cleaning filter for multi-stage filtration.
Q4: Can this filter cartridge be used for gas filtration?
A: Yes. Its high temperature resistance and stable pore structure make it widely used for high-temperature steam and industrial gas filtration.
Q5: What is the advantage of pleated design?
A: The pleated structure greatly increases the effective filtration area, so the cartridge can achieve higher flow with lower pressure drop and longer service cycle.
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