Titanium Rod Filter Cartridge for Corrosive High Temperature Filtration
Introduction:Industrial filtration systems face persistent challenges when handling strong corrosive fluids and high-temperature media, where conventional polymer filter elements often suffer from swelling, melting and precision failure. The titanium rod filter cartridge provides a robust inorganic filtration solution for harsh process conditions. It can be matched with a reliable water filter housing and integrated into a self-cleaning filter system to realize continuous, stable online filtration for chemical, pharmaceutical and seawater desalination processes. Compared with Pall, 3M and other imported metal filter elements, our titanium rod filter cartridge delivers equivalent filtration performance with a much more competitive cost and flexible custom specifications.
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Product Introduction
The titanium rod filter cartridge is a high-tech inorganic filter element that has grown popular in recent years, famous for outstanding mechanical strength, excellent corrosion resistance, high-temperature tolerance and excellent regenerability. This filter element can be assembled into standard water filter housing, and it is also compatible with the configuration of a self-cleaning filter to support automatic backwashing and long-cycle operation. Made from industrial pure titanium (99.6% purity), it is manufactured by high-temperature vacuum sintering. It belongs to the deep inorganic membrane filtration category. Inside the sintered body, there are countless curved, interconnected void channels. When particles flow through these channels, van der Waals force creates a bridging effect to form a stable filter cake layer, achieving precise depth filtration. It covers a wide range of filtration grades: 0.22 μm, 0.45 μm, 1 μm, 3 μm, 5 μm, 10 μm, 15 μm, 20 μm, 50 μm and 80 μm, meeting diverse fine separation requirements from sterile filtration to coarse particle removal. It is widely adopted in electronics, food & beverage, petrochemical, water treatment, pharmaceutical chemical, environmental protection and seawater desalination industries. Unlike PP, PE and PTFE filter cartridges which have obvious limits in solvent resistance and heat resistance, sintered titanium media maintains stable structure under aggressive service conditions.
Working Principle
Titanium rod filter cartridge adopts deep bed sintered filtration mechanism. The sintered titanium matrix forms a three-dimensional porous structure with tortuous and interconnected pores. When the feed liquid flows from the outer surface to the inner cavity of the titanium rod, suspended solids, colloids and fine contaminants are trapped inside the porous channels, not only on the surface. The “bridging phenomenon” occurs as contaminant particles adhere to each other and the pore walls, forming a permeable filter cake that further improves interception efficiency.
When the pressure difference across the filter element rises to the preset threshold, the regeneration process can be triggered. It can be used inside a self-cleaning filter assembly for automatic backflush, or taken out for offline cleaning. The filtration flow direction can be reversed: clean water, steam or cleaning solution flows backward through the titanium rod to strip away accumulated contaminants from the internal pores. The rigid, inert titanium skeleton will not deform or expand during repeated backwashing, which is the core advantage over polymer filter cartridges. After cleaning, the pore structure and filtration accuracy recover nearly to the original state, so the element can be reused many times.
Key Features & Advantages
1. Outstanding Corrosion Resistance
Titanium is an inert metal with exceptional chemical stability. The sintered titanium rod resists strong acid, strong alkali and most organic solvents. In pharmaceutical API and solvent recovery processes, common polymer filter cartridges such as PP and PE will dissolve or swell when exposed to acetone, ethanol, butanone and other organic solvents. The titanium rod filter cartridge keeps stable in these solvent media, avoiding filter material shedding and secondary pollution. This makes it irreplaceable for fine chemical and pharmaceutical solvent filtration.
2. Excellent High Temperature Resistance
The continuous working temperature of the titanium rod filter cartridge can reach up to 300℃, a performance that most filter media cannot match. Ordinary polymer filter cartridges usually fail above 50℃; even PTFE cartridges will deform and age under 120℃ and 0.2MPa pressure for long-term running. The titanium rod cartridge keeps its pore size and physical shape unchanged under high temperature. It supports high-temperature liquid filtration, steam filtration in fermentation engineering and hot air filtration. It is the ideal choice for high-temperature steam sterilization and hot process fluid filtration.
3. High Mechanical Strength
The sintered titanium rod owns superior mechanical performance. It can withstand 20kg external pressure and 10kg internal breaking pressure (non-joint test). It can run steadily under high differential pressure and high flow velocity filtration processes. In contrast, polymer filter cartridges will experience pore distortion or puncture once the external pressure exceeds 0.5MPa. It is suitable for high-pressure process filtration, fiber production, compressed air purification and aeration application in water treatment.
4. Great Regeneration Performance
Reusability is one of the most valuable strengths of titanium rod filter cartridges. Two cleaning methods are available: physical regeneration and chemical regeneration.
Physical regeneration: pure water backflushing, steam blowback, ultrasonic cleaning
Chemical regeneration: alkali washing, acid pickling Combined ultrasonic and chemical cleaning delivers the best recovery effect. The attenuation rate of filtration efficiency is very low. With standard operation and regular cleaning, the service life can reach 2 years, far longer than disposable filter cartridges. It is especially suitable for filtering viscous liquids where frequent filter replacement will bring high operation cost.
5. Clean & Non-toxic Material
Pure titanium material is non-toxic and biologically inert. It will not release harmful substances into the fluid. It fully complies with food-grade and pharmaceutical sanitary requirements, so it is widely used in beverage clarification, food sterilization filtration and biological fermentation industries.
Technical Specification Table
| Item | Parameter |
|---|---|
| Raw Material | Industrial pure titanium, 99.6% Ti |
| Filtration Precision | 0.22μm, 0.45μm, 1μm, 3μm, 5μm, 10μm, 15μm, 20μm, 50μm, 80μm |
| Max Working Temp | 300℃ |
| Max External Pressure | 2.0 MPa |
| Max Internal Breaking Pressure | 1.0 MPa |
| Connection Type | Thread, quick-fit, flange, customized |
| Length | Customized from 5” to 40” |
| Cleaning Method | Backwash, steam blowback, ultrasonic, acid & alkali cleaning |
| Compatible Housing | Stainless steel water filter housing, sanitary filter housing |
| Matching System | Self-cleaning filter, sanitary filter system, pressure filter vessel |
Application Scenarios
1. Pharmaceutical & Fine Chemical Industry
Filtration of organic solvents, API feed liquid, fermentation broth, sterile air and steam sterilization filtration. It solves the dissolution risk of polymer filter media in ketone, alcohol and ester solvents.
2. Food & Beverage Industry
Clarification and sterile filtration of wine, fruit juice, edible vinegar and beverage liquid. The non-toxic titanium material meets food safety standards and can be repeatedly sterilized by hot steam.
3. Petrochemical & New Energy Industry
High-temperature oil filtration, corrosive medium separation, lithium chemical and salt lake brine filtration, acidic and alkaline process liquid purification.
4. Water Treatment & Seawater Desalination
Pretreatment of high-salinity brine, RO system pretreatment for corrosive raw water, aeration and coagulant adding system in water treatment projects. It can be installed inside a water filter housing and integrated with a self-cleaning filter for unattended raw water filtration.
5. Electronics Industry
High-purity chemical liquid filtration, corrosive etching solution purification, compressed dry air filtration for chip manufacturing workshops.
6. Environmental Protection Industry
Wastewater with strong acid and alkali, high-temperature exhaust gas dedusting, industrial waste liquid solid-liquid separation.
Selection Guide
When selecting a titanium rod filter cartridge, you need to confirm 5 core parameters:
Fluid medium: confirm acidity, alkalinity, solvent composition and temperature to verify material compatibility.
Required filtration precision: select 0.22~0.45μm for sterile filtration; 1~10μm for general fine clarification; 15~80μm for coarse impurity removal.
Flow rate and pressure difference: calculate the required filter area according to single-pass flow, avoid excessive pressure drop.
Connection size and overall length: match the dimension of your existing water filter housing.
Operation mode: choose offline removable type or customized structure for self-cleaning filter online backwash system.
If you are replacing imported metal filter elements from Pall or other brands, we can provide dimension-matched alternative titanium rod cartridges with shorter lead time and lower total cost.
FAQ
Q1: Can titanium rod filter cartridges be steam sterilized repeatedly?
A: Yes. It can withstand repeated high-temperature steam sterilization up to 300℃, without deformation or precision shift, which is perfect for sanitary pharmaceutical and food processes.
Q2: What is the difference between titanium rod filter and sintered stainless steel filter cartridge?
A: Titanium has better resistance to chloride ion, strong acid and some organic solvents than ordinary stainless steel. Stainless steel is more cost-effective for neutral, low-corrosion medium; titanium rod is preferred for brine, chloride-containing and strong corrosive working conditions.
Q3: How to judge when to clean the titanium rod filter cartridge?
A: Monitor the pressure difference before and after the filter housing. When the differential pressure rises to the preset value, start the backwash or offline cleaning procedure. It can work with the differential pressure control module of a self-cleaning filter.
Q4: Can the titanium rod filter cartridge be customized?
A: Yes. We support customized length, diameter, thread interface and special end cap structure to fit your existing water filter housing and filter system.
Q5: How long is the service life?
A: Under correct operation and regular cleaning, the service life can reach about 2 years. The actual lifespan depends on the fluid impurity concentration and cleaning frequency.
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