
Grundfos 91584910 Flange Set
The Grundfos 91584910 Flange Set is a heavy-duty 2-inch NPT cast iron flange set designed for seamless integration with high-capacity circulator pumps. This GF 53 flange connection kit is engineered specifically for compatibility with Grundfos UP, UPS, and MAGNA series pumps, providing a rigid, leak-proof interface in hydronic heating and chilled water systems. As a veteran-grade circulator pump flange kit, it handles the mechanical stresses of commercial plumbing and HVAC applications where 2" pipe sizing is required. The robust cast iron construction ensures long-term structural integrity in non-potable closed-loop systems. This NPT threaded pump flange set comes as a complete pair, including high-durometer gaskets and zinc-plated mounting hardware (bolts and nuts) to ensure a watertight pump seal upon installation. For contractors replacing aged GF 50/53 flange adapters, this set provides the exact tolerances needed to match Grundfos volutes, preventing vibration-induced fatigue and ensuring optimal flow performance across the pump connection.
- Precise Compatibility: Fits Grundfos UP/UPS 53 and MAGNA 50/53 series pumps with GF 53 housings.
- Durable Construction: Heavy-duty cast iron body designed for high-pressure hydronic environments.
- Complete Installation Kit: Includes two flanges, two gaskets, and all necessary 7/16" x 1-1/2" bolts and nuts.
- Industry Standard Sizing: Features 2-inch NPT female threading for standard iron pipe connections.
Common Questions
Which Grundfos pump models are compatible with the 91584910 flange set?
This set is specifically designed for pumps utilizing the GF 53 flange pattern, including the MAGNA3 50 series and UP/UPS 53 models. Always verify the flange code on your pump’s nameplate before installation.
Does this set include gaskets and hardware?
Yes, the 91584910 is a comprehensive kit containing two cast iron flanges, two gaskets, and eight sets of nuts and bolts to complete the suction and discharge connections.
Can I use this flange set for potable water applications?
No, this specific set is cast iron. For domestic open-loop or potable water systems, a bronze or stainless steel flange set is required to prevent corrosion and meet lead-free standards.
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: $195.71
-65%$195.71
$68.50Grundfos 91584910 Flange Set
The Grundfos 91584910 Flange Set is a heavy-duty 2-inch NPT cast iron flange set designed for seamless integration with high-capacity circulator pumps. This GF 53 flange connection kit is engineered specifically for compatibility with Grundfos UP, UPS, and MAGNA series pumps, providing a rigid, leak-proof interface in hydronic heating and chilled water systems. As a veteran-grade circulator pump flange kit, it handles the mechanical stresses of commercial plumbing and HVAC applications where 2" pipe sizing is required. The robust cast iron construction ensures long-term structural integrity in non-potable closed-loop systems. This NPT threaded pump flange set comes as a complete pair, including high-durometer gaskets and zinc-plated mounting hardware (bolts and nuts) to ensure a watertight pump seal upon installation. For contractors replacing aged GF 50/53 flange adapters, this set provides the exact tolerances needed to match Grundfos volutes, preventing vibration-induced fatigue and ensuring optimal flow performance across the pump connection.
- Precise Compatibility: Fits Grundfos UP/UPS 53 and MAGNA 50/53 series pumps with GF 53 housings.
- Durable Construction: Heavy-duty cast iron body designed for high-pressure hydronic environments.
- Complete Installation Kit: Includes two flanges, two gaskets, and all necessary 7/16" x 1-1/2" bolts and nuts.
- Industry Standard Sizing: Features 2-inch NPT female threading for standard iron pipe connections.
Common Questions
Which Grundfos pump models are compatible with the 91584910 flange set?
This set is specifically designed for pumps utilizing the GF 53 flange pattern, including the MAGNA3 50 series and UP/UPS 53 models. Always verify the flange code on your pump’s nameplate before installation.
Does this set include gaskets and hardware?
Yes, the 91584910 is a comprehensive kit containing two cast iron flanges, two gaskets, and eight sets of nuts and bolts to complete the suction and discharge connections.
Can I use this flange set for potable water applications?
No, this specific set is cast iron. For domestic open-loop or potable water systems, a bronze or stainless steel flange set is required to prevent corrosion and meet lead-free standards.
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
Shipping & Returns
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Description
The Grundfos 91584910 Flange Set is a heavy-duty 2-inch NPT cast iron flange set designed for seamless integration with high-capacity circulator pumps. This GF 53 flange connection kit is engineered specifically for compatibility with Grundfos UP, UPS, and MAGNA series pumps, providing a rigid, leak-proof interface in hydronic heating and chilled water systems. As a veteran-grade circulator pump flange kit, it handles the mechanical stresses of commercial plumbing and HVAC applications where 2" pipe sizing is required. The robust cast iron construction ensures long-term structural integrity in non-potable closed-loop systems. This NPT threaded pump flange set comes as a complete pair, including high-durometer gaskets and zinc-plated mounting hardware (bolts and nuts) to ensure a watertight pump seal upon installation. For contractors replacing aged GF 50/53 flange adapters, this set provides the exact tolerances needed to match Grundfos volutes, preventing vibration-induced fatigue and ensuring optimal flow performance across the pump connection.
- Precise Compatibility: Fits Grundfos UP/UPS 53 and MAGNA 50/53 series pumps with GF 53 housings.
- Durable Construction: Heavy-duty cast iron body designed for high-pressure hydronic environments.
- Complete Installation Kit: Includes two flanges, two gaskets, and all necessary 7/16" x 1-1/2" bolts and nuts.
- Industry Standard Sizing: Features 2-inch NPT female threading for standard iron pipe connections.
Common Questions
Which Grundfos pump models are compatible with the 91584910 flange set?
This set is specifically designed for pumps utilizing the GF 53 flange pattern, including the MAGNA3 50 series and UP/UPS 53 models. Always verify the flange code on your pump’s nameplate before installation.
Does this set include gaskets and hardware?
Yes, the 91584910 is a comprehensive kit containing two cast iron flanges, two gaskets, and eight sets of nuts and bolts to complete the suction and discharge connections.
Can I use this flange set for potable water applications?
No, this specific set is cast iron. For domestic open-loop or potable water systems, a bronze or stainless steel flange set is required to prevent corrosion and meet lead-free standards.
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.












