Stratos PICO-Z 25/1-4 | Wilo
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Stratos PICO-Z 25/1-4

Technical data
Tender text

This circulation pump is suitable only for drinking water.

Maintenance-free domestic hot water glandless circulation pump with threaded connection, blocking-current proof synchronous motor according to ECM technology and built-in electronic power control for variable differential pressure control. With maximum efficiencies and high starting torque, including automatic deblocking function. Can be used for all domestic hot water applications (+2 up to +70 °C).

Standard-equipped with:

  • Preselectable control modes for optimum manual operating mode, Δp-c (differential pressure constant)
  • Temperature-controlled operating mode
  • Identification of the thermal disinfection of the domestic hot water tank
  • Integrated motor protection
  • Operating and fault display (with error codes)
  • Display of the current consumption in watts and the cumulative kilowatt hours, or
  • Display of effective flow and temperature
  • Reset function for resetting the electricity meter or for resetting the settings to the factory settings
  • "Hold" function (key lock) for disabling the settings
  • Minimal consumption only 3 W
  • Automatic deblocking function
  • Equipped as standard with a thermal insulation shell
Operating data
Fluid temperature T 2 °C
Ambient temperature T 0 °C
Maximum operating pressure PN 10 bar
Max. permitted total water hardness 3.57 mmol/l (20°dH)
Motor data
Interference emission EN 61000-6-3
Interference immunity EN 61000-6-2
Mains connection 1~230 V, 50/60 Hz
Power consumption P1 max 25 W
Max. speed nmax 3500 1/min
Rated current IN 0.26 A
Protection class motor IPX4D
Threaded cable connection 1 x PG11
Pump housing Stainless steel
Impeller PPE-GF30
Shaft Stainless steel
Bearing Carbon, synthetic resin-impregnated
Installation dimensions
Pipe connection on the suction side DNs G 1½
Pipe connection on the discharge side DNd G 1½
Port-to-port length L0 180 mm
Ordering information
Brand Wilo
Product description Stratos PICO-Z 25/1-4
Net weight, approx. m 2 kg
Article number 4216472

Installation and operating instructions

Wilo-Stratos PICO-Z

Article Number 4244930
Edition 2021-03
Page format 105.1 x 148.2 mm
Number of pages 242
PDF (21 MB)

Certificate REACH (Documents)

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)

Stratos PICO-Z-25/1-4

DWG (1 MB)


STP (1 MB)


DWG (26 KB)


DWG (26 KB)


DWG (24 KB)