Wilo-Yonos PICO-STG

Series description

Your advantages

  • Green button for setting ∆p-v control mode or fixed speed
  • External speed control thanks to built-in PWM 1 (geothermal) and PWM 2 (solar) interfaces
  • Flexible connection cable with Wilo-Connector
  • Pump housing with cataphoretic coating protects against corrosion due to condensation water formation
  • Ring LED for operation and fault display


Glandless circulator with screwed connection, blocking-current proof EC motor and integrated electronic power control.


Primary circuits of solar and geothermal energy


Operating modes

  • Δp-v for variable differential pressure
  • Constant speed (n=constant)
  • External speed control with PWM 1 or PWM 2 signal

Manual functions

  • Setting the operating mode
  • Setting of pump output (delivery head)
  • Setting the PWM mode

Automatic functions

  • Infinitely variable power adjustment according to the operating mode
  • Automatic deblocking function

Signal and display functions

  • Display of the operation or of faults


  • Wrench attachment point on pump body
  • Quick electrical connection with Wilo-Connector via flexible cable
  • Blocking-current proof motor
  • Cataphoretically-coated pump housing

Scope of delivery

  • Pump
  • Wilo-Connector
  • Seals
  • Installation and operating instructions

Type key


Wilo-Yonos PICO-STG 15/1-7.5-130

Yonos PICO

High-efficiency pump (screw-end pump), electronically controlled


For solar and geothermal energy systems


Nominal connection diameter


Nominal delivery head range [m]


Port-to-port length

Technical data

  • Energy Efficiency Index (EEI) ≤ 0.23
  • Fluid temperature 0 °C to +110 °C
  • Mains connection 1~230 V, 50 Hz
  • Protection class IPX4D
  • Screwed connection Rp ½, Rp 1 and Rp 1¼
  • Max. operating pressure 10 bar


  • Pump housing: Grey cast iron (EN-GJL-200)
  • Impeller: Plastic (PP - 40 % GF)
  • Pump shaft: Stainless steel
  • Bearing: carbon, metal impregnated


REACH regulation

Edition 2018-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (581 kB)


General overview 2019 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 74

PDF (42 MB)


Wilo-Yonos PICO-STG

Article Number 4190494
Edition 2018-12
Version number 03
Page format 105.1 x 148.2 mm
Number of pages 172

PDF (5 MB)



PDF: Wilo-Yonos PICO-STG


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