01
High-temperature resistance
Metallic construction extends use beyond many polymer media limits.
Metal filter elements
Stainless-Steel Filter Cartridges
Reusable metallic filter elements for high-temperature, high-differential-pressure and chemically demanding duties where polymer media may be unsuitable.
Operating principle
How the filtration product works
Stainless-steel filter elements use stable metallic pores to retain particles while allowing fluid to pass. Cylindrical designs provide a simple robust surface; pleated designs increase area. Sintered mesh or random-fibre constructions bond contact points to stabilise the porous structure.
These elements are selected when temperature, differential pressure, chemical exposure, backflushing or reuse exceeds the practical limits of many polymer or fabric media. Performance still depends on pore construction, alloy, support layers and housing sealing.
Media design
Construction and process behaviour
Sri Bharathi publishes stainless-steel wire mesh, sintered metal, random-fibre and sintered-fibre types in cylindrical or pleated configurations. Existing text lists SS 304 and SS 316, with SS 316 repeated; any requirement for SS 316L must therefore be explicitly confirmed rather than assumed.
Coarser support media can protect the primary filter layer. Bubble-point testing is referenced as a way to identify openings larger than the specified pore size in joints or seams.
What to evaluate
Important features and benefits
02
Differential-pressure strength
Supported mesh and sintered structures can withstand demanding service.
03
Washable and reusable
Elements may be cleaned or backflushed using a validated procedure.
04
Stable pore geometry
Sintered constructions are designed to preserve pore structure.
05
No fibre migration
Metallic media avoid polymer or textile-fibre shedding.
06
Custom forms
Tubes, cartridges, discs, plain cylinders and pleated elements are referenced.
Technical data
Specification and enquiry checklist
Values below are limited to information published by Sri Bharathi. Final grade, compatibility and operating limits must be confirmed against the actual process.
| Selection parameter | Available / verified information | Engineering relevance |
|---|---|---|
| Published alloys | SS 304 and SS 316. | Confirm exact grade, certificate and corrosion compatibility. |
| Media types | Wire mesh, sintered metal, random fibre and sintered metal fibre. | Construction determines pore stability, cleanability and pressure drop. |
| Lengths | 10, 20, 30 and 40 inches; custom sizes available. | Match housing and support requirements. |
| Micron options | 0.5, 1, 3, 5, 10, 20, 25, 50 µm and more. | Confirm test method and pore/rating definition. |
| Diameters | 64 mm OD; 28 mm ID. | Verify housing clearance. |
| Connections | DOE, 226, 222 and 1-inch NPT/BSP. | Match socket, thread and seal design. |
| Integrity test | Bubble-point testing is referenced. | Agree test fluid, method and acceptance criterion. |
Process fit
Applications and selection considerations
Published uses include catalyst recovery, polymer filtration, cross-flow and gas filtration, analytical and medical devices, oil filtration, hot-gas filtration, aerosols, fuel and hydraulic oils, gas-liquid separation and RO pre-filtration.
Cleaning and reuse
A reusable element needs a controlled cleaning method matched to the contaminant and metallurgy. Define maximum backflush pressure, cleaning chemistry, temperature, drying, inspection, integrity test and retirement criteria. Reuse should be based on restored flow and verified integrity—not appearance alone.
Questions engineers ask
Frequently asked questions
Is stainless steel always chemically resistant?
No. Alloy selection must consider chlorides, acids, alkalis, temperature and crevice conditions. Request the exact metallurgy.
What is a bubble-point test used for?
With a suitable wetting liquid, it can indicate the largest effective pore or reveal oversized defects in seams and joints under a defined method.
When is pleating useful?
Pleating increases area within a given envelope, potentially reducing clean pressure drop and extending the cycle, but it can complicate cleaning.
Can these elements be steam cleaned?
Only if the exact alloy, seals, joints and construction are rated for the temperature, pressure and repeated cycles.
Continue specifying
Related filtration products
Application support
Send us your operating conditions
Share your fluid, temperature, desired clarity, existing equipment and dimensions. Our team can then recommend a suitable construction and prepare a quotation.