Grundfos ALPHA1 15-55SF
Grundfos ALPHA1 15-55SF
Hover to zoom
1 Of 5
Grundfos ALPHA1 - 1/16 HP - Variable-Speed Circulation Pump - Stainless Steel - GF 15/26 Flange - With Terminal Box
Model: ALPHA1 15-55SF
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5
Number of Reviews(1)
Write a Review
$309.00
Free Shipping
Learn More About Free Freight
Free Shipping
*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
In-Stock
Ships in 2-3 Business Days
Shipping to60601
Shipping Details
*We currently CANNOT ship this product to Canada or any destination outside of the United States

Material
Wiring Type
Connection Type
Share
  • Product Description
  • 1
    Reviews
  • Recommended Accessories
  • How-To Articles
  • Manuals
Product Description
+
Features
Features
    Grundfos ALPHA1 pumps are a culmination of years of pump manufacturing experience, combining the best features of Grundfos circulators into a single pump while remaining easy to operate. The ALPHA1 15-55SF is a variable speed circulator designed to provide consistent flow in a wide variety of applications. Constructed of stainless steel, the ALPHA1 is designed to provide year after year of reliable use.
  • Durable Stainless Steel Construction
  • The Grundfos ALPHA1 15-55SF is crafted from stainless steel, which gives the pump both extended lifespan and protection against corrosion.
  • Additional Protection
  • The ALPHA1 features an integrated check valve to automatically prevent backflow in your system as well as nut captures for flanges.
  • Powerful Circulation
  • The ALPHA1 boasts the highest torque rating in its class. Its unique start feature attempts to restart indefinitely every seven seconds in blocked rotor conditions.
  • Preset Performance Modes
  • Grundfos ALPHA1 pumps come with several constant pressure modes that adjust based on your water demand and is designed to simplify the integration of the pump into your hydronic system.
  • Large, Easy-to-Read Display
  • The integrated bright LED-lit display allows at-a-glance readings of either flow rate or power consumption.
  • Whisper Quiet Operation
  • Tested in one of the best European sound labs, the ALPHA1 operates at an extremely quiet 19.2 decibels.
Specifications
General Information
Product Line
ALPHA1
Motor Type
Variable Speed
Connection Type
Flanged
Mount Type
In-Line
Material
Stainless Steel
Drive Type
Wet Rotor
DHW Compatible Learn More
DHW Compatible
Can be used in Domestic Hot Water applications (baths, sinks, showers).
Yes
UPC
05713826610586
Additional Model Numbers
99287262, ALPHA1 15-55SF
Performance
Maximum Head
19 Feet
Maximum Flow Rate
21 GPM
Minimum Fluid Temperature
36 F
Maximum Fluid Temperature
230 F
Horsepower
1/16
Maximum Operating Pressure
150 PSI
Electrical Data
Voltage
115 Volts
Phase
1
Frequency
60 Hz
Current Draw
0.65 Amps
Dimensions
Product Height
6 1/2 Inches
Product Width
3 13/16 Inches
Product Depth
6 3/8 Inches
Flange Connection
GF 15/26
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
Features
Features
    Grundfos ALPHA1 pumps are a culmination of years of pump manufacturing experience, combining the best features of Grundfos circulators into a single pump while remaining easy to operate. The ALPHA1 15-55SF is a variable speed circulator designed to provide consistent flow in a wide variety of applications. Constructed of stainless steel, the ALPHA1 is designed to provide year after year of reliable use.
  • Durable Stainless Steel Construction
  • The Grundfos ALPHA1 15-55SF is crafted from stainless steel, which gives the pump both extended lifespan and protection against corrosion.
  • Additional Protection
  • The ALPHA1 features an integrated check valve to automatically prevent backflow in your system as well as nut captures for flanges.
  • Powerful Circulation
  • The ALPHA1 boasts the highest torque rating in its class. Its unique start feature attempts to restart indefinitely every seven seconds in blocked rotor conditions.
  • Preset Performance Modes
  • Grundfos ALPHA1 pumps come with several constant pressure modes that adjust based on your water demand and is designed to simplify the integration of the pump into your hydronic system.
  • Large, Easy-to-Read Display
  • The integrated bright LED-lit display allows at-a-glance readings of either flow rate or power consumption.
  • Whisper Quiet Operation
  • Tested in one of the best European sound labs, the ALPHA1 operates at an extremely quiet 19.2 decibels.
Specifications
General Information
Product Line
ALPHA1
Motor Type
Variable Speed
Connection Type
Flanged
Mount Type
In-Line
Material
Stainless Steel
Drive Type
Wet Rotor
DHW Compatible Learn More
DHW Compatible
Can be used in Domestic Hot Water applications (baths, sinks, showers).
Yes
UPC
05713826610586
Additional Model Numbers
99287262, ALPHA1 15-55SF
Performance
Maximum Head
19 Feet
Maximum Flow Rate
21 GPM
Minimum Fluid Temperature
36 F
Maximum Fluid Temperature
230 F
Horsepower
1/16
Maximum Operating Pressure
150 PSI
Electrical Data
Voltage
115 Volts
Phase
1
Frequency
60 Hz
Current Draw
0.65 Amps
Dimensions
Product Height
6 1/2 Inches
Product Width
3 13/16 Inches
Product Depth
6 3/8 Inches
Flange Connection
GF 15/26
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
Product Specs
+
Specifications
General Information
Product Line
ALPHA1
Motor Type
Variable Speed
Connection Type
Flanged
Mount Type
In-Line
Material
Stainless Steel
Drive Type
Wet Rotor
DHW Compatible Learn More
DHW Compatible
Can be used in Domestic Hot Water applications (baths, sinks, showers).
Yes
UPC
05713826610586
Additional Model Numbers
99287262, ALPHA1 15-55SF
Performance
Maximum Head
19 Feet
Maximum Flow Rate
21 GPM
Minimum Fluid Temperature
36 F
Maximum Fluid Temperature
230 F
Horsepower
1/16
Maximum Operating Pressure
150 PSI
Electrical Data
Voltage
115 Volts
Phase
1
Frequency
60 Hz
Current Draw
0.65 Amps
Dimensions
Product Height
6 1/2 Inches
Product Width
3 13/16 Inches
Product Depth
6 3/8 Inches
Flange Connection
GF 15/26
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years
Reviews
(1)
+
Grundfos ALPHA1 15-55SF Reviews & Ratings
Product Q&A
+
Be the first to ask a question.
Recommended Accessories
+
Expert Recommended Accessories Hand Picked By Our Expert Bob
icon-social-fb1
Required Accessories Add All Required
Optional Accessories
How-To Articles
+
Manuals
+
 
 
Media Gallery
Grundfos ALPHA1 - 1/16 HP - Variable-Speed Circulation Pump - Stainless Steel - GF 15/26 Flange - With Terminal Box
Grundfos ALPHA1 15-55SF
+
Reset View
×
Customer Review Images