Titanium Porous Filters FAQ: Specifications, Ordering and Support Questions

The answers below address the most common technical and ordering questions engineers and procurement teams ask about POROYAL's sintered titanium porous filters. Every fact is drawn from confirmed product documentation.

1. What material are they made from?

POROYAL manufactures these filters from 99.4% minimum purity titanium powder. The high-purity base material delivers strong corrosion resistance in demanding chemical and process environments.

2. What filter grades (pore sizes) are available?

Available grades run from sub-micron to coarse: 0.45 μm, 1 μm, 3 μm, 5 μm, 10 μm, 20 μm, 30 μm, 50 μm, 80 μm, 100 μm, and 120 μm. This broad spectrum accommodates everything from fine sterilising filtration to coarser gas distribution and sparging duties.

3. What is the porosity range?

Porosity is 28% to 50% depending on the grade and form factor. Higher-porosity variants support greater flow capacity; lower-porosity options deliver tighter particle retention.

4. What is the maximum working temperature?

The rated maximum is 280 °C under wet conditions, making these sintered titanium elements well-suited to high-temperature liquid and gas streams where many polymer media would degrade.

5. What pressure limits apply?

• Maximum pressure drop: 1.0 MPa
• Compressive strength: 0.5 – 1.5 MPa (varies by grade and dimension)

Confirm the relevant compressive-strength figure for your specific size and grade when placing an order.

6. Which chemical environments are compatible?

Allowable working environments include Nitric Acid, Fluoride Salts, Lactic Acid, Liquid Chlorine, Sea Water, and Air.

7. What form factors and dimensions are offered?

Three standard forms are available:

Seamless Tubes

Joint types: M20, M30, M40, 215, 220, 222, 226, 228, NPT, BSP, BSPT, Flanges, and other joints on request.

Discs

Sheets

8. Can I order custom or non-standard sizes?

Yes. POROYAL accepts special-size orders for all three form factors — tubes, discs and sheets. Non-standard joint types are also available for seamless tube configurations. Provide your dimensional requirements and target application when requesting a custom quotation.

9. How do these compare to PTFE porous filters?

Both product families are sintered porous filters offered by POROYAL, but they differ in key properties:

The titanium variant supports a wider pore-size range and higher operating temperature. PTFE offers broader chemical tolerance (including alkalis and solvents) and higher compressive strength within a narrower pore and temperature range.

10. How do I request a quote or place an order?

Contact SHIJIAZHUANG POROYAL TECHNOLOGIES CO., LTD. with your required form factor, dimensions, grade (pore size), target chemical environment and any special joint or connection needs. Custom and OEM orders are accepted.