WILO wet-rotor high-efficiency pump Varios PICO-STG 25/1-8, G11/2, 1x230V

Highly efficient Wilo-Varios PICO-STG circulator pump, electronically controlled. Maintenance-free wet rotor circulator pump with screw connection, block-current-proof synchronous motor according to ECM technology, and integrated electronic power control for stepless differential pressure control. Can be used for all heating and air conditioning applications, as well as for solar and geothermal systems.

Equipped as standard with:

• Selectable control modes for optimal load adjustment:
  • Constant differential pressure (&Delta,p-c), 3 predefined curves
  • Variable differential pressure (&Delta,p-v), 3 predefined curves
  • Constant speed (3 speed levels)
  • External control via iPWM GT (heating/geothermal) or iPWM ST (solar) signal
• Sync function (manual programming mode) for reprogramming the pump in case of replacement
• Manual deaeration function for deaerating the rotor chamber
• Manual restart
• LED display
  • Display of the selected control mode and curve
  • Status display during deaeration and manual restart
  • LED coding during the sync function
  • Operating and fault display
• Integrated motor protection
• Automatic deblocking function
• Electrical connection cable with 3-pin plug connection and Wilo-Connector
• PWM connection
• Cathodically coated pump housing

Operating data

• Pumping medium: Water, ethylene glycol, propylene glycol
• Min. medium temperature: -20 &deg,C
• Max. medium temperature: 110 &deg,C
• Min. ambient temperature: -10 &deg,C
• Max. ambient temperature: 40 &deg,C
• Maximum operating pressure: 10 bar

Motor data

• Energy Efficiency Index (EEI): 0.23
• Mains connection: 1~230 V &plusmn,10%, 50/60 Hz
• Motor nominal power: 55 W
• Speed min.: 2695 rpm
• Speed max.: 4686 rpm
• Power consumption: 1 W
• Power consumption: 75 W
• Emissions: EN 61000-6-3
• Immunity to interference: EN 61000-6-2
• Electromagnetic compatibility: EN 61800-3
• Insulation class: F
• Protection class: IPX4D
• Cable gland: 1 x PG11

Materials

• Pump housing: Cast iron
• Impeller: PP-GF40
• Shaft: Stainless steel
• Bearings: Carbon, metal-impregnated

Installation dimensions

• Pump connection: G 1&frac12,
• Pump connection (alternative designation): RP 1DN 25
• Installation length: 180 mm

Order information

• Manufacturer: Wilo
• Product designation: Varios PICO-STG 25/1-8
• Net weight approx.: 2 kg
• Article number: 4232743