Hastelloy Sintered Porous Filter Disc
Hastelloy Sintered Porous Filter Discs | Electrolyzer & Chemical Filtration
Engineered for extreme chemical aggression and high-efficiency hydrogen production, our Hastelloy Sintered Porous Filter Discs deliver superior mechanical strength, precise uniform pore distribution, and unmatched corrosion resistance.
Manufactured by high-temperature vacuum sintering of spherical Hastelloy powder or multi-layer Hastelloy wire mesh, these porous metal elements are designed to replace standard stainless steel (316L) where severe pitting, stress corrosion cracking, or strong acid exposure occurs.
Core Application Fields
1. Hydrogen Production & Water Electrolyzers (PEM, AEM & Alkaline)
In modern clean energy applications, reliable fluid management and gas-liquid distribution are critical. Hastelloy C-276 and C-22 sintered porous discs serve as core components in electrolysis systems:
Porous Transport Layers (PTL) & Diffusion Plates: Ensures uniform distribution of liquid reactant across active catalyst layers while providing smooth release of generated H₂ and O₂ gases.
Electrode Support & Protective Media: Superior resistance to anodic oxidation, acid condensate, and elevated temperature in demanding electrolyte environments.
Gas Clarification & Separation: Removes fine particulates and mist droplets from high-pressure hydrogen gas streams to protect downstream fuel cell stacks and compression units.
2. Chemical & Petrochemical Processing
Designed to operate where conventional metal filters fail, Hastelloy porous filter media excel in aggressive fluid streams:
Severe Acid Filtration: Outstanding resistance to wet chlorine gas, hydrochloric acid, sulfuric acid, hypochlorites, hydrofluoric acid mixtures, and strong organic acids.
Catalyst Recovery & Retention: High-efficiency particle retention (down to 0.5 µm) for valuable noble metal catalyst recovery in slurry reactors and continuous chemical loops.
High-Temperature Gas Sampling & Venting: Operates continuously at temperatures up to 600°C–800°C in corrosive flue gases without structural degradation or pore closure.
Technical Specifications
| Specification Parameter | Standard Range / Custom Options |
| Material Alloys | Hastelloy C-276 (UNS N10276), Hastelloy C-22 (UNS N06022), Hastelloy B-2 / B-3 |
| Filtration Rating | 0.5 µm to 100 µm (Absolute / Nominal options) |
| Porosity Range | 30% – 50% (Engineered for optimal permeability and mechanical strength) |
| Outer Diameter (OD) | 10 mm to 300 mm (Custom shapes, step-rings, and flanges available) |
| Thickness Range | 1.0 mm to 5.0 mm |
| Structure Type | Sintered Metal Powder or Sintered Woven Wire Mesh |
| Operating Temperature | Up to 600°C (Oxidizing) / 800°C (Reducing / Inert atmosphere) |
| Differential Pressure | Up to 3.0 MPa (30 bar) dependent on disc thickness and structural design |
Key Performance Advantages
Superior Pitting & Crevice Corrosion Resistance: Formulated with high Nickel, Chromium, and Molybdenum content to combat localized pitting and chloride-induced stress corrosion cracking.
Uniform Pore Architecture & Controlled Permeability: Advanced vacuum sintering guarantees consistent pore sizes, eliminating channelling and localized hot spots during gas-liquid diffusion.
Zero Media Migration & High Rigidity: The rigid sintered powder/mesh matrix prevents fiber shedding into sensitive electrolyte streams or downstream equipment.
Cleanable & Reusable: Can be repeatedly backwashed, ultrasonically cleaned, or chemically flushed with acid/solvent baths to fully restore initial differential pressure.
Custom OEM & Engineering Support
We provide full-spectrum OEM manufacturing tailored to your exact application requirements:
Precision laser cutting for custom geometries, stepped discs, and mounting holes.
Solid outer edge borders, welded structural rings, or integrated gaskets (PTFE / FKM) for leak-tight assembly in electrolyzer stacks.
Material certification (EN 10204 3.1 MTC) and sample testing confirmation forms for client validation.
Primary Focus Keywords: Hastelloy sintered porous filter disc, Hastelloy C-276 porous metal filter, electrolyzer porous transport layer, chemical acid filtration disc, sintered porous alloy filter element
