
Grundfos 95906631 Pump
The Grundfos 95906631 is a professional-grade UPS26-150F 3-speed circulator pump designed for high-head performance in closed-loop hydronic heating and cooling systems. Built with a cast iron pump housing and 2-pole IMU motor, this 230V single-phase unit delivers a maximum flow rate of 52 GPM and a max head of 45 feet. As a veteran-preferred wet rotor circulator, it features a canned rotor design where the pump and motor form an integral unit without a shaft seal, ensuring quiet, leak-proof operation and maintenance-free longevity. The three-speed motor technology allows contractors to fine-tune the pump’s performance to specific system requirements, significantly reducing noise and power consumption. With its GF 15/26 flange connection and internal thermal protection, the UPS26-150F 230V is a direct replacement for various commercial-scale circulators, handling liquid temperatures up to 230°F and systems with up to 50/50 glycol mixes. This centrifugal pump is engineered for reliability in large residential and commercial HVAC applications.
Key Benefits
- Versatile Performance: Three-speed manual switching allows for precise hydraulic matching across diverse hydronic heating applications.
- Whisper-Quiet Operation: The wet rotor design and canned rotor motor eliminate mechanical seal noise and operational vibration.
- Heavy-Duty Construction: Features a cast iron housing and stainless steel rotor can, bearing plate, and impeller cladding for maximum durability.
- Easy Installation: Standard 2-bolt flange connections and a compact 6.5-inch port-to-port length simplify retrofitting in existing pipework.
- High Thermal Tolerance: Rated for pumped liquids between 36°F and 230°F, ideal for high-temperature boiler loops.
Common Questions
What is the difference between the 115V and 230V models?
The Grundfos 95906631 is specifically the 230V version (model UPS26-150F). While performance curves are identical to the 115V variant (95906630), this unit is designed for commercial 208-230V electrical circuits and draws approximately 1.7 Amps at maximum speed.
Which flanges are compatible with this pump?
This pump uses GF 15/26 flanges. Common compatible iron flange sizes include 1", 1-1/4", and 1-1/2" NPT, which are typically sold separately depending on your specific piping requirements.
Can this pump be used for domestic potable water?
No, this specific model features a cast iron pump housing intended for closed-loop heating and cooling. For domestic hot water recirculation, a bronze or stainless steel housing model is required to prevent corrosion.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $942.78
-65%$942.78
$329.97Grundfos 95906631 Pump
The Grundfos 95906631 is a professional-grade UPS26-150F 3-speed circulator pump designed for high-head performance in closed-loop hydronic heating and cooling systems. Built with a cast iron pump housing and 2-pole IMU motor, this 230V single-phase unit delivers a maximum flow rate of 52 GPM and a max head of 45 feet. As a veteran-preferred wet rotor circulator, it features a canned rotor design where the pump and motor form an integral unit without a shaft seal, ensuring quiet, leak-proof operation and maintenance-free longevity. The three-speed motor technology allows contractors to fine-tune the pump’s performance to specific system requirements, significantly reducing noise and power consumption. With its GF 15/26 flange connection and internal thermal protection, the UPS26-150F 230V is a direct replacement for various commercial-scale circulators, handling liquid temperatures up to 230°F and systems with up to 50/50 glycol mixes. This centrifugal pump is engineered for reliability in large residential and commercial HVAC applications.
Key Benefits
- Versatile Performance: Three-speed manual switching allows for precise hydraulic matching across diverse hydronic heating applications.
- Whisper-Quiet Operation: The wet rotor design and canned rotor motor eliminate mechanical seal noise and operational vibration.
- Heavy-Duty Construction: Features a cast iron housing and stainless steel rotor can, bearing plate, and impeller cladding for maximum durability.
- Easy Installation: Standard 2-bolt flange connections and a compact 6.5-inch port-to-port length simplify retrofitting in existing pipework.
- High Thermal Tolerance: Rated for pumped liquids between 36°F and 230°F, ideal for high-temperature boiler loops.
Common Questions
What is the difference between the 115V and 230V models?
The Grundfos 95906631 is specifically the 230V version (model UPS26-150F). While performance curves are identical to the 115V variant (95906630), this unit is designed for commercial 208-230V electrical circuits and draws approximately 1.7 Amps at maximum speed.
Which flanges are compatible with this pump?
This pump uses GF 15/26 flanges. Common compatible iron flange sizes include 1", 1-1/4", and 1-1/2" NPT, which are typically sold separately depending on your specific piping requirements.
Can this pump be used for domestic potable water?
No, this specific model features a cast iron pump housing intended for closed-loop heating and cooling. For domestic hot water recirculation, a bronze or stainless steel housing model is required to prevent corrosion.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Grundfos 95906631 is a professional-grade UPS26-150F 3-speed circulator pump designed for high-head performance in closed-loop hydronic heating and cooling systems. Built with a cast iron pump housing and 2-pole IMU motor, this 230V single-phase unit delivers a maximum flow rate of 52 GPM and a max head of 45 feet. As a veteran-preferred wet rotor circulator, it features a canned rotor design where the pump and motor form an integral unit without a shaft seal, ensuring quiet, leak-proof operation and maintenance-free longevity. The three-speed motor technology allows contractors to fine-tune the pump’s performance to specific system requirements, significantly reducing noise and power consumption. With its GF 15/26 flange connection and internal thermal protection, the UPS26-150F 230V is a direct replacement for various commercial-scale circulators, handling liquid temperatures up to 230°F and systems with up to 50/50 glycol mixes. This centrifugal pump is engineered for reliability in large residential and commercial HVAC applications.
Key Benefits
- Versatile Performance: Three-speed manual switching allows for precise hydraulic matching across diverse hydronic heating applications.
- Whisper-Quiet Operation: The wet rotor design and canned rotor motor eliminate mechanical seal noise and operational vibration.
- Heavy-Duty Construction: Features a cast iron housing and stainless steel rotor can, bearing plate, and impeller cladding for maximum durability.
- Easy Installation: Standard 2-bolt flange connections and a compact 6.5-inch port-to-port length simplify retrofitting in existing pipework.
- High Thermal Tolerance: Rated for pumped liquids between 36°F and 230°F, ideal for high-temperature boiler loops.
Common Questions
What is the difference between the 115V and 230V models?
The Grundfos 95906631 is specifically the 230V version (model UPS26-150F). While performance curves are identical to the 115V variant (95906630), this unit is designed for commercial 208-230V electrical circuits and draws approximately 1.7 Amps at maximum speed.
Which flanges are compatible with this pump?
This pump uses GF 15/26 flanges. Common compatible iron flange sizes include 1", 1-1/4", and 1-1/2" NPT, which are typically sold separately depending on your specific piping requirements.
Can this pump be used for domestic potable water?
No, this specific model features a cast iron pump housing intended for closed-loop heating and cooling. For domestic hot water recirculation, a bronze or stainless steel housing model is required to prevent corrosion.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












