Slotted bucket B1 Granulate Filter 70 µm – Flat Design | Winkler
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Low-rise specialist B1
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Bypass-free: 70 µm
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Legally Compliant: EU 2025
Delivery time: 1 week
Request individual solution
Slotted Bucket B1 Retention System for Plastic Granules – 70 µm Complete Set
Standard-compliant Granulate Retention for Shallow Road Gullies (DIN 4052)
In industrial outdoor facilities with shallow construction depths, flat gully pots are often used. Our Slotted Bucket Set B1 with 70 µm filter fineness is precisely tailored to these requirements. It enables industrial companies to legally retrofit their drainage system in accordance with EU Regulation 2025/2365, without having to make structural changes to existing facilities. This specialized plastic granule retention system secures your site against microplastic emissions[cite: 1].
The system is designed for high-traffic areas in the plastics processing industry. Where pellets or regrind are loaded, the B1 slotted bucket serves as the last mechanical barrier before entering the sewer system and is an essential component for audits according to the Operation Clean Sweep standard. Especially in the areas of Traffic & Logistics and Chemicals & Raw Materials, this solution offers maximum safety[cite: 1].
Specialized for Shallow Installation Depths
The B1 model according to DIN 4052 is used wherever structural conditions do not allow for a deep shaft. It is a proven component for infrastructure projects in Civil Engineering & Landscaping as well as in the Energy & Environment sector[cite: 1]:
- Shallow road gullies in logistics and loading areas
- Industrial car park drainage
- Access roads to silo facilities
- Drainage of courtyards with limited shaft depth
No Bypass Risk Thanks to Winkler Locking Technology
Conventional filter solutions often allow particles to pass through at the edge. Our B1 system eliminates this risk through mechanical forced water guidance:
- Dimensionally Stable Shape: The 70 µm fabric is manufactured to fully utilize the flat design of the B1 bucket.
- Precisely Fitting Filter Collar: The filter is pulled over the rim of the galvanized bucket, creating a flush sealing surface.
- Secured with a Drawstring: An industrial drawstring permanently fixes the filter. Since we do not use an emergency overflow, the protective function remains 100% intact even with sudden water ingress (heavy rain).
Comparison of Retention System Models
Use the following overview to find the right system for your existing infrastructure:
| Model | Application Area | Bucket Type (DIN 4052) | Special Feature |
|---|---|---|---|
| A4 | Road Gully (deep) | Form A (Ø 450 mm) | Maximum Capacity |
| B1 | Road Gully (shallow) | Form B (Ø 450 mm) | Shallow Installation Depth |
| C3 | Special Gully Pot | Form C (Ø 300 mm) | Compact Industrial Drains |
| D1 | Compact Drain | Form D (Ø 300 mm) | Flat & Narrow |
| Courtyard Bucket | Courtyard & Point Drainage | Square / Round small | Production-proximal areas |
| Replacement Filter | All Models | Universal Fabric | Individually & flexibly retrofittable |
Technical Details: Slotted Bucket B1 Set
| Scope of Delivery | 1x Galvanized slotted bucket (Form B1) incl. mounted 70 µm filter |
| Filter Material | High-performance polymer (chemical- and oil-resistant) |
| Filter Fineness | 70 µm (Micron) – stops pellets and micro-abrasion |
| Bucket Dimensions | Suitable for standard gully pots Ø 450 mm (flat Form B) |
| Legal Compliance | Compliant with EU 2025/2365 & Operation Clean Sweep Standards |
Note: As we custom-assemble each set for your industrial needs, please allow for the appropriate delivery time for industrial production.
Consultation from a Specialist in Industrial Filtration
Do you need support in identifying your existing gully pots (A4 or B1)? Our experts will gladly help you with a targeted expert consultation or comprehensive industrial filtration consultation to equip your site in a legally compliant manner[cite: 1].
FAQ – Slotted Bucket B1 Granulate Retention System 70 µm
Responses on securing shallow road drains in accordance with EU environmental regulations.
