Alpha 15-55FC Variable Speed Circulator Pump w/ IFC, 1/16 HP, 115V


Brand: Grundfos

Mfr Part#: 59896877

Model: Alpha 15-55FC

UPC#: 571062016437

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$169.95 / each & Free Shipping
x2 $327.90 & Free Shipping
(2 x $163.95 / each)
  • Description
  • Literature
  • Reviews (1)
  • FAQs (1)

Grundfos Alpha 15-55FC Circulator Pump 59896877 has Cast Iron housing and terminal box for conduit connection applications. The energy efficient Grundfos Alpha Pump has permanent magnet motor and reduces power consumption by 50% or more.


  • Terminal box for conduit connection applications;
  • Large display shows current energy consumption in Watts;
  • Large display shows estimated flow in gallons per minute;
  • Integrated check-valve (optional);
  • The Unique Featu res of the Grundfos ALPHA;
  • Nut capture;
  • Compact design;
  • Cast Iron pump housing;
  • A one button, easyto-use interface;

Technical Specifications:

  • Flow Range: 0 to 21 GPM;
  • Head Range: 0 to 19 Feet;
  • Motor: 1x115V;
  • Min. Fluid Temperature: 36F;
  • Max. Fluid Temperature: 230F;
  • Max. Working Pressure: 150 PSI;
  • Watts: 5-45W;
  • Amps: 0.65A;


3 years from date of manufacture.
Alpha 15-55FC Variable Speed Circulator Pump w/ IFC, 1/16 HP, 115V has an average 5.0 out of 5 rating based on 1 user review.
High Tec pump
By MFParker (from Wayne, NJ) on 1/25/2014
I guess the days of the basic circulator pump are gone. I like bells and whistles and this pump has them all. Easy install. After that the fun starts. This pump has seven modes. Three based on watts, three based on gph and an auto adapt mode. On auto adapt it will alternately display power use in watts and gph being pumped through the system. It's fun to watch. Seems to run fine. I have three pumps/zones active and one inactive connected to a Taco 4 zone controller. I would recommend this pump based on based on the five months they have been in service.
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what diameter piping does this pump need entering and exiting the pump, 3/4, 1" ?
Read 1 answer
1 of 1 people found this answer helpful.
All flanged circulator pumps have a flange outlet, which can accommodate piping sizes from 3/4" to 1-1/4" (1/2" and 1-1/2" on select models) when used together with pump flanges. For Grundfos cast iron circulators, these are:
3/4": Part# 519601 1": Part# 519602 1-1/4": Part# 519603
Answered on 10/19/2015 by PexUniverse Customer Service
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