Name: SS / Ti Porous Discs
Brand: FILTURE

Sintered porous metal discs in multiple sizes

Sintered porous metal disc with center hole

Porous Components

SS / Ti Porous Discs

Sintered porous discs cut from sintered porous sheet or individually pressed as net-shape components. Available in 316L SS or Grade 2 titanium, with the same pore size and porosity range as the tubular elements and plates.

Material

316L SS or Grade 2 Titanium

Filter rating

0.22 – 100 µm

Diameter (Ti)

φ5 – φ400 mm

Diameter (SS)

φ5 – φ300 mm

Thickness

0.5 – 20 mm (Ti); 0.5 – 10 mm (SS)

Inspection

Flow test or bubble-point per disc

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Diameter range φ5–400 mm (Ti) or φ5–300 mm (SS); thickness 0.5–20 mm (Ti) or 0.5–10 mm (SS). Discs can be pressed to net shape in quantity, or cut from sheet for prototype and small-batch orders.

For PEM electrolyzer use, titanium porous discs in cell-specific diameters serve as porous transport layers — specifying controlled porosity (30–45%) and pore size. For in-line filtration, discs are threaded into pipe unions or pressed into housings for point-of-use particle removal.

For flame-arrestor duty, SS316L discs are sintered to a fine, homogeneous pore structure — down to 0.22 µm — that helps quench flame propagation by heat absorption and flow restriction. The rigid sintered structure can typically be cleaned by ultrasonic or thermal methods for repeated reuse. Discs for high-vibration housings or frequent tool changes can be supplied with a 1 mm welded outer reinforcement ring and an electropolished face.

Technical Specifications

SS / Ti Porous Discs — Full Specification

Properties & Performance

Material

316L SS; Ti Grade 2

Filter rating

0.22 – 100 µm

Porosity

30 – 45%

Max pressure

≈ 0.6 MPa typical (thickness-dependent)

Max temperature

400 °C (not recommended above)

Dimensions & Configuration

Diameter (Ti)

φ5 – φ400 mm

Diameter (SS)

φ5 – φ300 mm

Thickness (Ti)

0.5 – 20 mm

Thickness (SS)

0.5 – 10 mm

Tolerance

±0.1 mm OD; ±0.05 mm thickness

Production

Net-shape pressing or cut-from-sheet

Standard

GB/T 6887-2007 / GB/T 6886-2008

Flame-arrestor grade

0.22 µm SS316L, ultrasonic/thermal cleanable, reusable

Reinforced edge

1 mm welded outer ring + electropolished face on request

Product Features

Core Advantages of SS/Ti Porous Discs

Wide Diameter Range

φ5 mm instrument-line discs to φ400 mm large-cell electrolyzer components — the same sintering process scales across the full diameter range.

Tight Dimensional Tolerances

±0.1 mm OD and ±0.05 mm thickness as standard. Tighter tolerances for electrolyzer stack components on request.

PEM Stack Components

Ti discs to customer-specified cell geometry, with controlled porosity and pore size, for porous transport layer duty in PEM electrolyzers and fuel cells.

Cleanable and Reusable

Rigid sintered structure survives backwash, acid soak (HNO₃ for Ti; acid or alkali for SS), and ultrasonic cleaning without structural change.

Flame-Arresting Pore Structure

A fine, homogeneous SS316L pore structure down to 0.22 µm absorbs heat and blocks flame propagation — the basis of the disc element used in vent-line and deflagration flame arrestors.

Per-Disc Inspection

Bubble-point or flow-test data available on request. Test records maintained for batch traceability.

Reinforced-Ring Option

A 1 mm welded outer ring with an electropolished face reinforces the disc edge for high-vibration housings and frequent tool changes, without reducing the active filtration area.

Net-Shape or Cut-from-Sheet

Net-shape pressing is available for larger quantities and reduces machining cost. Cut-from-sheet is used for prototypes and small batches.

Applications

Typical Uses for SS/Ti Porous Discs

PEM Electrolyzer PTL Disc

Porous transport layer on anode side of PEM cell. Ti Grade 2 stable in H₂SO₄ electrolyte; cell-specific diameter and porosity.

φ50–400 mm · Ti · Custom porosity

Point-of-Use Inline Filter

Disc filter threaded into pipe union or pressed into instrument fitting for last-line-of-defence particle removal.

φ5–50 mm · SS or Ti · 0.5–20 µm

Flame Arrestor Element

0.22 µm sintered SS316L disc that quenches flame fronts in vent lines, deflagration arrestors, and fuel-gas safety trains. Reusable after ultrasonic or thermal cleaning.

0.22 µm · 316L · Reusable

Sparger / Aeration Disc

Fine-bubble gas diffusion in bioreactors, fermenters, and ozone contact vessels, including 1/2" NPT-threaded titanium aeration heads for direct fermentor mounting. Uniform bubble size across the disc surface.

2–50 µm · Ti or SS · NPT option

Catalyst Support Disc

Porous disc supports fixed catalyst bed in micro-reactors and lab-scale equipment. Sized to tube ID for tight fit without bypass.

2–50 µm · SS or Ti · Custom OD

Pharmaceutical Vessel Bottom

Porous disc at base of pharmaceutical vessels and filter units for liquid discharge filtration. CIP-compatible with validation documentation.

0.5–10 µm · 316L · GMP docs

Reinforced-Ring Process Disc

Disc with a 1 mm welded outer ring and electropolished face for chromatography columns, catalyst recovery, and high-vibration housings requiring frequent removal.

316L · 1mm ring · Electropolished

Flow Control Orifice Disc

Sintered disc as a controlled-resistance flow restrictor in process lines — uniform distributed resistance vs. a single orifice plate.

5–100 µm · SS · Custom ΔP

SS / Ti Porous Discs

SS / Ti Porous Discs

SS / Ti Porous Discs — Full Specification