Varios PICO-STG
Glandless pump circulator
The most versatile replacement pump of all time.
- Universally deployable for heating, air conditioning, cooling, solar and geothermal energy applications
- Compact design as well as Wilo-Connector and Molex connection enable quick and easy installation
- Quick commissioning by means of 3-stage power adjustment for radiators, underfloor heating, alternatively with fixed speed
- With iPWM control for heating boilers and solar and geothermal energy applications
- Optional, custom adaptation by transferring the characteristic curve of the old pump using the Sync assistant
- Self-protection routines such as dry-running protection ensure operational reliability
- Easy maintenance and a high degree of operational reliability thanks to automatically and manually triggered reactivation or pump venting function

Wilo-Varios PICO-STG
Number of results: [9]
Pump connection
Energy efficiency index (EEI)
Port-to-port length L0
* The benchmark for the most efficient circulators is EEI ≤ 0.20


Wilo-Varios PICO-STG
Design
Glandless circulator with screwed connection, blocking-current proof EC motor and integrated electronic power control.Application
All hot-water heating systems, air-conditioning applications, industrial circulation systems, primary circuits of solar and geothermal systems.Equipment/function
Operating modes
- Constant differential pressure (3 pre-defined characteristic curves)
- Variable differential pressure (3 pre-defined characteristic curves)
- Constant speed (3 speed stages)
- External control by iPWM signal
- iPWM GT (heating/geothermal energy, not for Varios PICO-STG .../1-13)
- iPWM ST (Solar)
Manual functions
- Setting the operating mode in accordance with the application
- Setting of pump output (curve)
- Setting the constant speed
- Activation of sync function and LED coding
- Pump venting function
- Manual restart
Automatic functions
- Automatic restart
Signal and display functions
- Display of selected control mode
- Display of selected stage of control mode or iPWM type
- Display of activated sync function and LED coding
- Status display of the manual restart or pump venting function
- Operation and fault display
Equipment
- Cataphoretically-coated pump housing
- Wrench attachment point on pump body
- Electrical connection cable with 3-pole pump plug and Wilo-Connector
- iPWM connection
- Pump venting function
- Manual restart
- Blocking-current proof motor
- Particle filter
Type key
Example: | Wilo-Varios PICO-STG 25/1-8-130 |
Varios PICO | High-efficiency pump (screw-end pump), electronically controlled |
-STG | Compatible with heating, solar and geothermal applications |
25/ | Nominal connection diameter |
1-8 | Nominal delivery head range [m] |
-130 | Port-to-port length [mm] |
Technical data
- Fluid temperature -20 °C to +110 °C
- Mains connection: 1~230 V, 50 Hz
- IP rating: IPX4D
- Screwed connection: G1, G1½, G2
- Max. operating pressure: 10 bar
Materials
- 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
- Mains connection cable with 3-pole pump plug and Wilo-Connector connection
- Wilo-Connector
- Gaskets for threaded connection
- Installation and operating instructions
Options
- Varios PICO-STG ...-130 versions with short port-to-port length of 130 mm
Accessories
- Screwed connections
- Adapter fittings
- Thermal insulation
- iPWM signal cable
- Wilo-Connector with 2 m connection cable and shockproof plug
- Angle plug with 2 m connection cable
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Datasheet and documentation
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