Made from a base material 60° Shore A silicone compounded with carbon to create an electrostatically conductive product. Silicone Weighing Bellows Black Conductive has low resistance and enables electric charges to move across its surface and into the ground rapidly. This property is important in applications where static electricity can pose a risk.
SIL WB B is ideal for systems with high capacity flow rate or rapid air velocity. The classic round bellow shape design prevents force transfer. As a result, precise weighing results in systems involving dosing equipment, gravimetric feeders, and loss-in-weight feeders can be achieved.
| Material | Length | Diameter |
|---|---|---|
| Silicone Antistatic Black | 90 | 75 |
| Silicone Antistatic Black | 90 | 100 |
| Silicone Antistatic Black | 90 | 114 |
| Silicone Antistatic Black | 90 | 150 |
| Silicone Antistatic Black | 90 | 200 |
| Silicone Antistatic Black | 90 | 250 |
| Silicone Antistatic Black | 90 | 300 |
| Silicone Antistatic Black | 90 | 60 |
| Property | Specification |
|---|---|
| Material | Silicone |
| Color | Opaque Black |
| Wall Thickness | 1 mm (single arch bellows) / 2 mm (straight end sleeves) |
| Finish | Matte (*except DN300) |
| Hardness (Shore A) | 60° (±5° tolerance) — ISO 48-4:2018 / DIN ISO 7619-1 compliant |
| Surface Roughness (Inside End) | ± 0.80 Ra |
| Surface Roughness (Inside Bellows) | ± 0.70 Ra |
| Surface Roughness (Outside End) | ± 0.80 Ra |
| Surface Roughness (Outside Bellows) | ± 0.70 Ra |
| Elongation to Failure | 240% |
| Breathable | No |
| Air-tight | Yes |
| Dust-tight | Yes |
| Property | Specification |
|---|---|
| ATEX Rating | Safe to use in ATEX Zone 20,21,22 strictly for lengths <100mm and Minimum Ignition Energies (MIE) >1mJ. |
| Limitations | Not for use in case of flammable gases and vapors, hybrid flammable gas/vapor/dust-air mixtures and in case of dusts with Minimum Ignition Energies (MIE) <1 mJ |
| Additional Information | Consult this product’s explosion safety report for more details |
| Property | Specification |
|---|---|
| Available with Stainless Steel Rings | No |
| Available with Plastic Rings | No |
| Available as Tool Release | Standard (with Filcoflex accessories) |
| Available as One-Ended Connector | No |
| Quick Access Port Option | No |
| Accessories | KLB20 Hoseclamp |
| Marking and Identification | No |
| Earthing and Grounding | No |
Are you curious about the product?
Filcoflex specializes in design
and manufacture of polyurethane,
silicone, rubber, and textile flexible
connections for bulk product
transport.
