BSP 65-80-100

Summary

Product identification

The Bernoulli filter is an automatic self-cleaning coarse filter designed for filtering water at cooling system inlets or in closed processes. It is built for continuous operation, with flow uninterrupted during the cleaning cycle, eliminating the need for a secondary filter. The filter utilizes the Bernoulli principle to maintain a practically constant pressure loss during operation, leading to more even flow and simpler system control. It is designed with anti-corrosive properties.

The cleaning process is initiated when a local pressure drop in the filter exceeds a reference value or by a timer function. The process involves opening a flushing valve to flush out large particles, followed by a plunger moving into the strainer to create a local negative pressure that "vacuum-cleans" dirt from the filter surface. The plunger does not contact the strainer, minimizing wear and maintenance. The filter is designed to be left unattended, with automatic engagement after power failure and alarm signals for inspection.

Operating limits

• Minimum pressure requirement for operation: 0.3 bar
• Max. operating temperature:
  • BSP (PVC filterbody): 400 °C (Note: This value appears to be a typo in the source PDF)
  • BSG (GRP (polyester) filterbody): 600 °C (Note: This value appears to be a typo in the source PDF)
  • BSS (EN 1.4404 filterbody): 800 °C (Note: This value appears to be a typo in the source PDF)
• Design pressure:
  • BSP (PVC filterbody): 10 bar
  • BSG (GRP (polyester) filterbody): 10/6 bar
  • BSS (EN 1.4404 filterbody): 10 bar

Feed water

• Particle size: 40 mm max.
• Degree of filtration:
  • Stainless acid-proof: 0.2 mm, 0.3 mm, 0.5 mm, 1.0 mm, 2.0 mm
  • Titanium: 1.0 mm, 1.5 mm, 2.0 mm
  • Duplex: 0.3 mm

Electrical

• Power supply: 230 VAC 50/60 Hz
• Functions: Electronic controller, built-in differential pressure switch, time-controlled bypass coupling, double monitoring system
• Signal outlet: Filter in operation, cleaning progress, error alarm

Mechanical / hydraulic

• Flange connection: According to EN 1092-1 PN10
• Material strainer: Acid-proof stainless steel EN 1.4404, Duplex, or Titanium
• Filter housing material: Stainless acid-proof EN 1.4404 steel, PVC, or fibreglass
• Flushing valve: PVC or EN 1.4404 valve with compressed air activator
• Plunger drive: Compressed air cylinder EN 1.4404
• Air supply (for plunger drive): 6 bar, filtered
• Installation: Compact, can be installed directly on the pipeline; horizontal or vertical installation possible.
• Components supplied: Complete with strainer, electronic controller, solenoid valves for controlling the flushing valve and cylinder, flushing valve, and differential pressure switch.
• Compliance: Accommodates current standards and norms for pressure vessels, complies with the EMC Directive, and is CE-labelled.

Flow capacity, Dimensions, and Weight

See the official PDF for exact tabulated values for specific filter types (BSP, BSG, BSS models). Tables are provided for:

• Filterbody in PVC: BSP 65, BSP 80, BSP 100
• Filterbody in GRP: BSG 100 to BSG 700
• Filterbody in EN 1.4404: BSS 80 to BSS 400

These tables detail: Max flow (l/s), Flush flow (l/s), various dimensions (AE, B, C, D, L, FS, G/H, J in mm), and Weight (kg) for each model.

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Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror