Wilo Varios Pico recirculator pump with wet rotor STG 25/1-8-130 G 1/2 130mm 4232744

Wilo-Varios PICO-STG high-efficiency pump, electronically controlled.

 

Maintenance-free glandless circulation pump with threaded connection, self-protected synchronous motor according to ECM technology and integrated electronic power control for modulating differential pressure regulation. Can be used in all heating and air-conditioning applications as well as in all geothermal and solar energy systems.

 

Standard with:

 

Preselectable control modes for optimum load adaptation:

• Constant differential pressure (?p-c), 3 predefined characteristic curves
• Variable differential pressure (?p-v), 3 predefined characteristic curves
• Constant speed (3 speed stages)
• External control with iPWM GT (heating/geothermal) or iPWM ST (solar) signaling.
• Sync operation (manual programming mode) for resetting the pump to factory conditions in case of replacement
• Manual rotor compartment ventilation function
• Manual restart
  
   

LED indicator:

• Indication of the selected control mode and characteristic curve
• Status display during ventilation and manual restart
• LED coding during sync operation
• Function or fault indication
• Integrated motor protection
• Automatic unlocking function
• Electrical connection cable with three-pin socket and Wilo-Connector
• PWM connection
• Cataphoresis-treated pump housing
  
   

Motor data

• Energy efficiency index IEE 0.23
• Mains connection 1~230 V ±10%, 50/60 Hz
• Rated power P2 55 W
• Min. speed nmin 2695 1/min
• Max. speed nmax 4686 1/min
• Power consumption (min) P1 min 1 W
• Power consumption P1 max 75 W
• Electromagnetic interference emission EN 61000-6-3
• Interference immunity EN 61000-6-2
• Electromagnetic compatibility EN 61800-3
• Cable gland 1 x PG11
• Insulation class F
• Degree of protection IPX4D
  
   

Mounting dimension

• Pipe connection on pressure side G 1½
• Pipe connection on suction side G 1½
• Construction length l0 130 mm
  
   

Material

• Pump housing Cast iron
• Impeller PP-GF40
• Shaft Stainless steel
• Bearing material Carbon impregnated metal
  
   

Hydraulic data

• Max working pressure PN 10 bar
• Delivery Q max 4,4 m³/h
• Fluid temperature min. Tmin -20 °C
• Max. fluid temperature Tmax 110 °C
• Min. ambient temperature Tmin -10 °C
• Max. ambient temperature Tmax 40 °C