Wilo-Yonos PICO-STG

Series description


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


Primary circuits of solar and geothermal energy systems

Type key

Example:Wilo-Yonos PICO-STG 15/1-7.5-130
Yonos PICOHigh-efficiency pump (screw-end pump), electronically controlled
-STGFor solar and geothermal energy systems
15/Nominal connection diameter
1-7.5Nominal delivery head range [m]
130Port-to-port length

Special features/product advantages

  • Red button for setting the control mode ∆p-v or the fixed speed
  • External speed control via integrated interface PWM 1 (geothermal) and PWM 2 (solar)
  • Flexible connection cable with Wilo-Connector
  • Pump housing with cataphoretic coating protects against corrosion due to condensation formation
  • Operation and fault display via ring LED


Operating modes

  • Δ p-v for variable differential pressure
  • Manual control mode (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


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

Scope of delivery

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


  • Yonos PICO-STG...130 version with short port-to-port length of 130 mm


  • Screwed connections
  • Adapter fittings
  • Thermal insulation
  • Wilo-Connector with 2 m connection cable and shockproof plug
  • Angle plug with 2 m connection cable
  • PWM signal cable

Duty chart

Pump curves


General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)


Wilo-Yonos PICO-STG

Article Number 4190494
Edition 1409
Version number 01
Page format A4
Number of pages 26

PDF (2 MB)



PDF: Wilo-Yonos PICO-STG


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