EPS Biofilter Beads
EPS biofilter beads are round, lightweight beads offered in A, B and C size ranges. They provide good flow, strength and expansion performance. The supplied material specification includes particle-size ranges and primary and secondary expansion multipliers for selecting a bead grade.
- Round bead shape
- A, B and C size ranges
- High expansion performance; Good flow and bead strength
Product Information
EPS Biofilter Beads
EPS biofilter beads are round, lightweight beads offered in A, B and C size ranges. They provide good flow, strength and expansion performance. The supplied material specification includes particle-size ranges and primary and secondary expansion multipliers for selecting a bead grade.
Biofilter Bead Size Selection
EPS biofilter beads form a separate material category within the EPS range. The A, B and C specifications cover different bead sizes and expansion ranges so that the required size and expansion state can be identified before selection.
Product Features
- Round bead shape
- A, B and C size ranges
- High expansion performance
- Good flow and bead strength
Expansion and Bead Handling
The beads offer good flow, strength and rapid pre-expansion. Grade A is 2.0–3.0 mm, Grade B is 3.0–4.0 mm and Grade C is above 4.0 mm. Primary and secondary expansion multipliers vary by specification.
Technical Specifications
| Specification | Particle size (mm) | Primary expansion ratio (times) | Secondary expansion ratio (times) |
|---|---|---|---|
| Biological Filter Bead A | 2.0–3.0 | 80–100 | 100–150 |
| Biological Filter Bead B | 3.0–4.0 | 90–110 | 110–160 |
| Biological Filter Bead C | >4.0 | 100–130 | 130–180 |
Discuss Your Requirements
Provide the A, B or C specification, required expansion state, bead size and tolerance, quantity and intended filtration system. Include water-contact and system-testing requirements needed for evaluation.
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