Varios PICO-STG 25/1-8 | Wilo

Varios PICO-STG 25/1-8

Technical data
Tender text

High-efficiency pump Wilo-Varios PICO-STG, electronically controlled. Maintenance-free glandless circulator with screwed connection, blocking-current proof synchronous motor according to ECM technology and built-in electronic power control for variable differential pressure control. Can be used for all heating and air-conditioning applications, as well as for solar and geothermal systems.

Standard-equipped with:

  • Preselectable control modes for optimum load adjustment:
    • Differential pressure constant (Δp-c), 3 pre-defined pump curves
    • Differential pressure variable (Δp-v), 3 pre-defined pump curves
    • Constant speed (3 speed stages)
    • External control by iPWM GT (Heating/Geothermal) or iPWM ST (Solar) signal
  • Sync function (manual programming mode) for reprogramming the pump in the event of replacement
  • Manual pump venting function for venting the rotor chamber
  • Manual restart
  • LED display
    • Display of selected control mode und pump curve
    • Status display during venting and manual restart
    • LED coding during the sync function
    • Operation and fault display
  • Integrated motor protection
  • Automatic deblocking function
  • Electrical connection cable with 3-pole plug connection and Wilo-Connector
  • PWM connection
  • Cataphoretically-coated pump housing
Operating data
Fluid media
Fluid temperature T
-20 °C
Ambient temperature T
-10 °C
Maximum operating pressure PN
10 bar
Motor data
Energy efficiency index (EEI)
Interference emission
EN 61000-6-3
Interference immunity
EN 61000-6-2
Mains connection
1~230 V, 50/60 Hz
Power consumption P1 max
75 W
Min. speed nmin
2695 1/min
Max. speed nmax
4686 1/min
Protection class motor
Threaded cable connection
1 x PG11
Pump housing
Cast iron
Stainless steel
Carbon, metal-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
Product description
Varios PICO-STG 25/1-8
Net weight, approx. m
2 kg
Article number

Installation and operating instructions

Wilo-Varios PICO-STG

Article Number 4243954
Edition 2021-03
Page format 105.1 x 148.2 mm
Number of pages 80
PDF (8 MB)

Wilo-Varios PICO-STG

Article Number 4235775
Edition 2021-03
Page format 105.1 x 148.2 mm
Number of pages 32
PDF (5 MB)

Certificate REACH (Documents)

REACH regulation

Edition 2020-08
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (158 KB)