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Silen I
Click on the photo to enlarge it

Very compact, single-cell centrifugal pumps, with high suction power designed to recirculate water in removable or household swimming-pool systems.

Supplied with suction and delivery connectors for connecting to filtration systems with 50-mm-diameter pipes.

Completely silent with continuous service, with built-in thermal protector, purge plug, pre-filter with transparent cover and anti-blockage seal.


  • New design
  • New materials
    • Motor shaft in stainless steel AISI 431
    • Special mechanical seal in AISI 316
    • Bearings up to 160° C
    • 10.000 hours P2 capacitor withaluminium casing
  • Ultra-silent
  • Self-priming up to 4m
  • Extended warranty up to 5 years
Silen I Click on the image to download the pdf of the dimensions


Silen I Click on the photo to enlarge it

Frequency and units







Operating curves

Click on the product name to see each model’s specific features
Series features Silen I:
  • Equipment
  • Check valve: Not included
  • Draining plug: Included
  • Fittings: Glue
  • Pre-filter: Included
  • Support base: Included
  • Electrical characteristics
  • Electrical isolation: F Class
  • Motor speed operation: Constantly speed
  • Motor type: Asynchronous
  • Protection rating: IP55
  • Reset: Automatic
  • Service factor: S1
  • Service type: Continuous
  • Manufacturing characteristics
  • Discharge connection type: To Glue Connector
  • Discharge diameter: D50
  • Impeller type: Closed
  • Stages: Single-Stage Centrifugal Pump
  • Suction connection type: To Glue Connector
  • Suction diameter: D50
  • Tightness by: Mechanical Seal
  • Materials
  • Diffuser: PP + 30% GF
  • Discharge body: PP + 30% GF
  • Gaskets: NBR
  • Impeller/s: PPO + 30% GF
  • Mechanical seal: Aluminium-Graphite
  • Mechanical seal bracket: PP + 30% GF
  • Motor casing: Aluminium
  • Motor shaft: Acero inoxidable AISI 431
  • Nuts and bolts: Stainless steel AISI 304
  • Outer pump body: PP + 30% GF
  • Pre-filter: PP + 30% GF
  • Pre-filter lid: Polycarbonate
  • Pump shaft: AISI 431
  • Suction body: PP + 30% GF
  • Support base material: PP + 20% GF
  • Usage limits
  • Liquid temperature (ºC): Min: 4 - Max: 35
  • Maximum no. of motor start-ups (start-ups/minute): 0,50

Building services

Name Language Format Size Download Favourite
Silen I - Silen S - Silen S2 instruction manual .pdf 3.08 Mb f
Silen I dimensions .pdf 392.69 Kb f
Safety recommendations for surface pumps .pdf 523.54 Kb f
Product portfolio .pdf 2.22 Mb f
Technical appendix Spanish .pdf 1.48 Mb f
ESPA Pool catalogue .pdf 2.24 Mb f


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