WiseWater 110V Hot Water Recirculating Pump, 130W, 13 GPM, 3/4" FNPT Flanges 3-Speed

This hot water recirculating pump is designed for water circulation in closed-loop heating systems. It can be used in residential and light commercial applications, including hydronic radiant heating, boiler systems, solar water heating, domestic hot water circulation, and other water-based heating systems. The pump is equipped with a three-speed manual control system, allowing adjustment of operating power based on system requirements. It provides three power levels: 55W, 90W, and 130W, with a maximum flow rate of 13 GPM. Wet Rotor Structure：The pump adopts a wet rotor design, where the pumped water is used for internal lubrication during operation. This structure does not require mechanical seals or couplings, reducing maintenance requirements under normal operating conditions. The pump provides three selectable operating modes to match different system resistance requirements. Proper selection of speed should be based on system design and piping conditions. Regular system air removal may help maintain stable circulation performance. Brand Name WiseWater Model Number 25PBG-7_Green_3/4” Maximum Lifting Height 24 Feet Voltage 110 Volts Color Green Item Dimensions L x W x H 5.2"Lx5.94"Wx4.9"H Material Type Cast Iron Item Type Name Pump Three-Speed Manual Control The pump uses a built-in mechanical selector switch for speed adjustment. Speed I: 55W Speed II: 90W Speed III: 130W (maximum output) The operating head range is approximately 9.8 ft / 18 ft / 24 ft, depending on the selected speed. Installation Design The pump is supplied with installation accessories for standard piping systems. Included in the package: 3/4" FNPT flanges Gaskets Bolts and nuts The standard threaded connection allows installation into compatible hydronic piping systems using basic tools. The power cord is approximately 3.46 ft and comes with a standard US plug. Materials and Construction The pump body is made of cast iron and coated for corrosion resistance in closed-loop water systems. The impeller is made of PES material, designed for stable operation under hot water conditions. The bearing uses ceramic material, which provides corrosion resistance and temperature stability for continuous circulation applications. The motor uses copper winding and is designed for 110V power supply systems. Operating limits: Maximum pressure: 145 psi (10 bar) Maximum temperature: 230°F (110°C) Application Range This circulation pump is suitable for water circulation in the following systems: Hydronic radiant floor heating Boiler circulation systems Solar water heating systems Domestic hot water recirculation Sidearm heat exchangers Heating manifolds Snow melting systems Swimming pool heating loops Closed-loop plumbing circulation systems It is designed for clean water circulation in compatible heating applications.