Can you provide more details on the customization options for pore size and dimensions?

Certainly! Below is a detailed breakdown of customization options for DALON’s porous metal filter tubes, including pore sizes, dimensions, materials, and additional features. This section can be added to your product page or used for technical documentation.

Customization Options for Porous Metal Filter Tubes

1. Pore Size (Micron Rating)

  • Standard Range: 5µm – 100µm (absolute or nominal filtration)
  • Common Options:
    • 5µm – Ultra-fine filtration (e.g., pharmaceutical gases, high-purity liquids)
    • 10–20µm – General industrial use (hydraulics, compressed air)
    • 30–50µm – High-flow applications (fuel pre-filtration, coarse particulates)
    • 80–100µm – Rough filtration (e.g., debris screens, large-particle retention)
  • Custom: Smaller (<5µm) or larger (>100µm) pores available upon request (sintered or mesh-layered designs).

2. Dimensions

  • Inner Diameter (ID): 5mm – 200mm (or larger for industrial systems)
  • Outer Diameter (OD): 10mm – 250mm (wall thickness adjustable)
  • Length: 10mm – 1000mm (longer lengths for modular assemblies)
  • Shape Variations:
    • Cylindrical tubes (standard)
    • Conical/flared ends (for easy insertion)
    • Threaded/bolted ends (for secure mounting)

3. Material Options

Material
Best For
Temperature Range
316L Stainless
Corrosive fluids, chemicals, seawater
–200°C to +650°C
304 Stainless
Water, air, oils, food processing
–50°C to +400°C
Nickel 200
Alkaline/Caustic media
–200°C to +600°C
Monel®
Hydrofluoric acid, marine environments
–100°C to +550°C
Titanium
Extreme corrosion resistance
–250°C to +600°C

4. Porosity & Flow Characteristics

  • Uniformity: Sintered for consistent pore distribution (no channeling).
  • Porosity Levels: 20% – 50% (adjustable for flow rate vs. dirt-holding balance).
  • Multi-Layer Designs: Gradient porosity (e.g., 50µm outer layer + 10µm inner layer for staged filtration).

5. Surface Finishes & Add-Ons

  • Electropolishing: For high-purity applications (reduces particle shedding).
  • Flanged/Threaded Ends: NPT, BSPP, or custom threading for direct integration.
  • Welded Caps/Ends: For sealed systems or pressure vessels.
  • Perforated Core Support: For high-pressure applications (>50 bar).

6. Certifications & Testing

  • Material Certs: Mill test reports (MTRs) for traceability.
  • Bubble Point Test: Validates pore size accuracy.
  • Flow Rate Testing: Custom reports available (e.g., L/min at 1 bar).
  • Compliance: FDA, ISO 9001, ASME BPE (for sanitary applications).

Example Custom Order Specifications

Application: High-purity hydrogen gas filtration

  • Material: 316L stainless steel (electropolished)
  • Pore Size: 5µm (absolute)
  • Dimensions: ID 20mm × OD 25mm × Length 100mm
  • Ends: Welded cap on one end, M6 threaded port on the other
  • Testing: Bubble point report + flow rate data at 10 bar

FAQ: Customization Process

Q: How do I request a custom filter?
A: Provide:

  1. Fluid/gas type (e.g., hydrogen, sulfuric acid).
  2. Operating conditions (pressure, temperature, flow rate).
  3. Dimensions (ID/OD/length, connection type).
  4. Certifications needed (e.g., FDA, ISO).

Q: What’s the lead time for custom orders?
A. Typically 2–4 weeks (depending on complexity).

Q: Can you replicate an existing filter design?
A. Yes—send samples or CAD drawings for reverse engineering.

Q: Is there a MOQ for custom filters?
A. No MOQ for prototyping; bulk orders (50+ units) reduce costs.