Astralpool Berlin Bobbinwound Sand Filter Optional Side Valve

Experience the Difference From Stress to Clarity

Once installed and correctly sized, the filtration cycle becomes predictable. Pressure increases gradually instead of fluctuating abruptly. Backwashing follows a stable schedule instead of reacting to sudden performance drops.

Water clarity improves because the filter operates within the correct hydraulic range. This depends on proper installation, correct media loading, and balanced water chemistry. The result is a system that works consistently rather than requiring constant intervention.

Make an Informed Choice

This filter is suited for users prioritising long term stability and structural strength over entry level solutions. Smaller pools with low usage may operate with standard filters, while demanding installations benefit from this reinforced design.

Why This Product Stands Out

The bobbinwound manufacturing process creates a layered structure of polyester resin and fibreglass strands, improving resistance to pressure cycles and mechanical fatigue. This matters in daily use because the filter maintains shape and performance even after repeated backwash operations.

The internal hydraulic system uses resistant PVC and polypropylene collectors, ensuring compatibility with chemically treated pool water over time. The ability to install a separate side mounted valve allows precise system configuration rather than forcing a fixed solution.

Technical Excellence and Build Quality

Materials and Construction

• Polyester resin and fibreglass bobbinwound shell.
• Internal collectors and diffuser in PVC and polypropylene.
• HDPE lining for smaller models, ABS or fibreglass for larger diameters.
• Blue protective finish with polyurethane coating.

Performance Specs

• Filtration velocity 50 m³/h/m².
• Maximum operating pressure 2.5 kg/cm².
• Manual air purge and water purge included.
• Pressure gauge integrated.
• Compatible with sand and glass media.

Compliance and Safety

• Designed according to EN 16713 filtration requirements.
• Pressure monitoring through integrated gauge.
• Manual purge valves for safe operation.

Extractable Technical Specifications

• Product type: Sand filter
• Construction: Bobbinwound fibreglass reinforced polyester
• Filtration velocity: 50 m³/h/m²
• Max pressure: 2.5 kg/cm²
• Media compatibility: Silica sand, glass media
• Valve configuration: Side mounted valve not included
• Inspection lid: 230 mm or 400 mm depending on model
• Compliance: EN 16713

Compatibility and Exclusions

Compatible with private swimming pool hydraulic systems, silica sand media, glass filtration media, and standard circulation pumps sized according to flow rate.

Not supplied with multiport valve. Not suitable for operation without correctly sized selector valve. Not intended for industrial water treatment or incompatible chemical filtration systems.

Equivalence Mapping

• Replaces: Standard residential plastic sand filters of similar flow range.
• Alternative to: Reinforced fibreglass pool filters.
• Not the same as: Cartridge filters or diatomaceous earth filters.

Getting the Best Results

Install on a stable base and align with pump flow direction. Select filter size based on pool volume and circulation rate. Fill with calibrated sand or approved glass media.

• Do check pressure regularly.
• Do backwash when pressure rises above normal.
• Do use correct media granulometry.
• Do not exceed maximum pressure.
• Do not operate without valve installed.

Reliability You Can Trust at LordsWorld

LordsWorld supplies this exact AstralPool Berlin filter with EU distribution and verified sourcing. Our team reviews compatibility before dispatch when required, helping prevent incorrect sizing or installation mismatch.

Common Questions

Is the valve included?
No. All models are supplied without the selector valve.

Can I use glass media?
Yes. The filter supports both sand and glass media.

Which size should I choose?
Select based on pool volume and pump flow rate.

Is it suitable for heavy use?
Yes. It is designed for demanding private pools.

Available Options

• 00541, Ø 500 mm, 9 m³/h, 1½ inch connection.
• 00542, Ø 600 mm, 14 m³/h, 1½ inch connection.
• 00543, Ø 750 mm, 21 m³/h, 2 inch connection.
• 00544, Ø 900 mm, 30 m³/h, 2½ inch connection.
• 00545, Ø 1050 mm, 43 m³/h, DN75 connection, large 400 mm lid.
• 00546, Ø 1200 mm, 56 m³/h, DN90 connection, large 400 mm lid.

All variants are supplied without a side mounted selector valve.