UP15-10B5 Bronze Circulator Pump, 1/2" Sweat, 1/25 HP, 115V


Brand: Grundfos

Mfr Part#: 59896213

Model: UP15-10B5

UPC#: 632514001732

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$191.95 / each & Free Shipping
x2 $365.90 & Free Shipping
(2 x $182.95 / each)
  • Description
  • Literature
  • Reviews (1)
  • FAQs (1)

Grundfos UP15-10B5 (Grundfos SKU# 59896213) is a 1/25HP bronze circulator pump with 1/2" Sweat inlet/outlet connections and is typically used in open loop heating and hot water recirculation applications, such as radiant, solar, storage tanks, as well as chilled water cooling and many others. Bronze housing of the UP15-10B5 model protects the pump from corrosion and sweat connections allow for easier and faster installation and eliminate the need to purchase and install pump flanges.


  • Ceramic shaft and radial bearings;
  • Carbon axial bearing;
  • Stainless steel rotor can and bearing plate;
  • Corrosion-resistant impeller, Composite, PES;
  • Bronze pump housing;

Technical Specifications:

  • Speed Number: 1;
  • Max flow: 8.37 US gpm;
  • Head max: 6.23 ft;
  • Liquid temperature range: 35.6 - 219.2 F;
  • Maximum operating pressure: 145 psi;
  • Approvals on nameplate: UL, CSA;
  • Pump housing: Bronze;
  • Pump housing: DIN W.-Nr. 2.1176.01;
  • Impeller: Composite, PES;
  • Maximum ambient temperature: 104 F;
  • Ambient max at 176 F liquid: 176 F;
  • Maximum operating pressure: 145 psi;
  • Flange standard: USA Sweat;
  • Type of connection: Bronze Sweat;
  • Pipe connection: 1/2" Sweat;
  • Pressure stage: 10;
  • Port-to-port length: 5";
  • Number of poles: 2;
  • Max. power input: 25 W;
  • Rated power - P2: 0.04 HP;
  • Main frequency: 60 Hz;
  • Voltage: 115V;
  • Current in speed 3: 0.22 A;
  • Capacitor size - run: 2mF/400 V;
  • Insulation class (IEC 85): F;
  • Gross weight: 6 lbs;


2 years from date of installation.
UP15-10B5 Bronze Circulator Pump, 1/2" Sweat, 1/25 HP, 115V has an average 5.0 out of 5 rating based on 1 user review.
1 of 1 people found this review helpful.
Exact Replacement
By Tonester (from Macomb, Michigan) on 11/27/2011
"My Home is 11 years old, just purchased 1 year ago,discovered my Grundfos Boiler Bypass Pump was seized. Ordered replacement from PEX works great. Was able to leave original sweat connections in tact with old housing. Loosen four bolts 4mm on pump housing and thats it!"
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Is this the best Grundfos Pump for a dedicated Hot Water Recir. Line?
Read 1 answer
2 of 2 people found this answer helpful.
Grundfos makes a lot of pumps suitable for hot water recirculation. The "best" one is the one which has operating parameters (flow rate and head) that match your system's requirements. UP15-18B5 is a popular model for hot water recirculation applications, but you may also want to check out the Comfort Series circulators - these are specifically designed for hot water recirculation and depending on the model, may come with timer and/or aquastat.
Answered on 7/30/2012 by PexUniverse Customer Service
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