AKS-137/80

Summary

Product identification

Heco AKS-137 Automatic Filters are compact, self-cleaning automatic filters. They feature robust construction suitable for cleaning a wide range of liquids.

The filters are designed for continuous operation without flow interruption during cleaning. The filtration principle uses an asymmetric edge-gap element, retaining dirt particles on its surface.

The standard AKS filters are supplied in stainless acid-proof steel EN 1.4404. The filter element is fully welded in stainless acid-proof steel EN 1.4404.

Operating limits

• Design pressure: 16 bar
• Test pressure: According to EN 13445
• Max differential pressure: 2.5 bar (8 bar)
• Max working temperature: 110° C (water) according to customers requirements
• Minimum positive pressure (system): 0.1 bar
• Power supply: 3 x 230/400 V, 50 Hz
• Air supply: 5-7 bar, filtered
• Filtration range: 50, 100, 130, 250, 500, 1000, 2000, 3000 micron

Feed water

The filter is suitable for cleaning practically all liquids, including:

• Tung oil
• Lubricating oil
• Bitumen
• Grease
• Paint
• Toothpaste
• Water
• Fermentation liquids
• Petrol
• Syrup
• Condensate
• CIP liquids
• Antibiotic suspensions

Product water / Cleaning process

The cleaning process is initiated automatically at a preset differential pressure. An integrated PLC allows individual programming of the cleaning sequence and control of the drain valve.

During cleaning:

• The filter insert rotates, and three fixed blades scrape dirt into a sludge chamber.
• The dirt is drained from the sludge chamber at appropriate intervals.
• The process results in defined absolute cleaning and controlled drainage.
• Flow continues during scraping; the filter does not need to be blocked off.
• The flow is not interrupted during cleaning.
• Drainage normally occurs over 1-3 seconds, with a minor drop in system pressure.
• Liquid flow in the filter is reduced by approximately 5-10% during drainage.
• The differential pressure for cleaning activation can be set via the PLC, allowing dirt concentration before drainage to reduce product loss.

Electrical

• Power supply: 3 x 230/400 V, 50 Hz
• Control: Operated by an integrated PLC with motor protection, gear motor, and two pressure transmitters.

Mechanical / Hydraulic

The filter construction prioritizes robustness and reliability, with minimal moving components to reduce wear and maintenance.

• Flange connection: EN 1092-1/11
• Air valve: G1/4B

Models and Dimensions

• AKS-137/80

  • A: 219.1 mm
  • B: 450 mm
  • C: 1270 mm
  • D: 760 mm
  • E: 860 mm
  • F: 300 mm
  • G: 1840 mm
  • H: 250 mm
  • J: 157.5 mm
  • K: 250 mm
  • Drain DN: 50/80
  • Connection DN: 80
  • Weight: 123 kg

• AKS-137/100

  • A: 219.1 mm
  • B: 450 mm
  • C: 1270 mm
  • D: 760 mm
  • E: 860 mm
  • F: 300 mm
  • G: 1840 mm
  • H: 250 mm
  • J: 157.5 mm
  • K: 250 mm
  • Drain DN: 50/80
  • Connection DN: 100
  • Weight: 125 kg

• AKS-137/125

  • A: 219.1 mm
  • B: 450 mm
  • C: 1270 mm
  • D: 800 mm
  • E: 860 mm
  • F: 275 mm
  • G: 1840 mm
  • H: 250 mm
  • J: 157.5 mm
  • K: 250 mm
  • Drain DN: 50/90
  • Connection DN: 125
  • Weight: 130 kg

Capacity

Overall capacity ranges from 25 to 100 m³/h, across filtration degrees from 50 to 3000 micron. Specific capacity values are provided based on differential pressure (0.05 to 0.40 bar) for different models and micron ratings. See the official PDF for exact tabulated values.

Disclaimer

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

Official datasheet (PDF)

Lenntech datasheet mirror