Radiant Heat USA Rotating Header Image

Grundfos pumps

Grundfos UP15-42B7 Bronze Circulator Pump

Grundfos UP15-42B7 Circulator Pump

Click on image to enlarge

Grundfos UP15-42B7 Circulator PumpGrundfos UP15-42B7 Circulator Pump
GrundfosBrand: Grundfos

SKU #: 59896146


Availability: In Stock
Usually ships: within 1 business day
Product Description:


Pumps type Grundfos UP15 equipped with electric motors with “wet” rotor, ie pump and motor form a single unit without mechanical seal shaft, with only two fixed seals. Bearings are lubricated with the pumped liquid. The Grundfos UP15-42B7 1/25HP Bronze Circulator Pump with 3/4″ Sweat connections.

Features:

  • Suitable for all heating systems including radiant heating, solar heating, hydronic heating, fan coil heating, and other systems;
  • Whisper-quiet operation;
  • Bronze body;
  • Built-in motor protection;
  • UL/CSA listed.

Technical Specifications of Grundfos UP15-42B7:

  • Voltage: 115V;
  • Amperage: 0.74 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 85W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-17 GPM;
  • Head Range: 0-15 ft;
  • Horse Power: 1/25HP;
  • Body: Bronze;
  • Connections: 3/4″ Sweat;

Grundfos UP15-42B5 Bronze Circulator Pump

Grundfos UP15-42B5 Circulator Pump

Click on image to enlarge

Grundfos UP15-42B5 Circulator PumpGrundfos UP15-42B5 Circulator Pump
GrundfosBrand: Grundfos

SKU #: 59896145


Availability: In Stock
Usually ships: within 1 business day
Single-circulation pump, equipped with an electric motor with wet rotor. Does not require maintenance. Housing made of cast iron GG 20, the impeller of Ryton / GG 20.
Product Description:


The Grundfos UP15-42B5 1/25HP Bronze Circulator Pump with 1/2″ Sweat connections.

Features:

  • Suitable for all heating systems including hydronic heating, fan coil heating, radiant heating,  solar heating, and other systems;
  • Built-in motor protection for long life;
  • Bronze body;
  • UL/CSA listed.

Technical Specifications of Grundfos UP15-42B5:

  • Voltage: 115V;
  • Amperage: 0.74 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 85W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-17 GPM;
  • Head Range: 0-15 ft;
  • Horse Power: 1/25HP;
  • Body: Bronze;
  • Connections: 1/2″ Sweat;

Grundfos UP15-18B5 Bronze Circulator Pump

Click on image to enlarge

GrundfosBrand: Grundfos

SKU #: 59896114


Availability: In Stock
Usually ships: within 1 business day
Qty Price
$125.95 / each
Product Description: Bronze Circulation pumps UPSD Series 200 company Grundfos pumps are equipped with an electric motor with wet rotor and stator is protected with a layout type of “inline” with no seals, no maintenance-free and equipped opposite the connecting pipes of the same nominal internal diameters.


The Grundfos UP15-18B5 1/25HP Bronze Circulator Pump has 1/2″ Sweat connections and designed for heating systems.

Technical Specifications of Grundfos UP15-18B5:

  • Voltage: 115V;
  • Amperage: 0.74 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 85W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-14.7 GPM;
  • Head Range: 0-13.9 ft;
  • Horse Power: 1/25HP;
  • Body: Bronze;
  • Connections: 1/2″ Sweat;

Grundfos UPS15-58FC 3-Speed Circulator Pump

Grundfos UPS15-58FC 3-Speed Circulator Pump

Click on image to enlarge

Grundfos UPS15-58FC Circulator Pump Side ViewGrundfos UPS15-58FC in BoxGrundfos Pump Curve Chart

Grundfos

Brand: Grundfos

Model: Grundfos UPS15-58FC 3-Speed Circulator Pump

Pumps with an index of UPS have a 3-step manual control, and the model with an index of UP – single stage. Rotor pump is isolated from the stator sealed sleeve, ie pump and motor form a single unit without shaft seal that uses only two gaskets. Bearings are lubricated with the pumped liquid. Pumps with index F are flanged pipe connection, pumps, with an index to provide for pumping liquids with a negative temperature (-25 C)

SKU #: 59896341


Availability: In Stock

Usually ships: within 1 business day

Product Description:


The Grundfos UPS15-58FC circulator pump model incorporates a three speed motor for increased versatility and a built-in check valve. Wet rotor design allows it to be virtually silent while operating. The pump also saves power with pre-program usage times.

Features:

  • Built-in motor protection for longer life and better performance.
  • Suitable for a wide range of applications, including radiant heating, hydronic heating, fan coil heating, solar and other system types.
  • Whisper-quiet operation for sound sensitive installations.
  • Includes (2) Gaskets (O-rings).
  • UL/CSA listed.

Applications:

  • Closed loop radiant heating & snow melting systems.
  • Baseboard/Radiator/Fan coil heating and other hydronic heating applications.

Technical Specifications:

  • Voltage: 115V;
  • Amperage at Speed 1: 0.55 Amps;
  • Amperage at Speed 2: 0.66 Amps;
  • Amperage at Speed 3: 0.75 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts at Speed 1: 60W;
  • Watts at Speed 2: 80W;
  • Watts at Speed 3: 87W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-17 GPM;
  • Head Range: 0-19.5 ft;
  • Horse Power: 1/25HP;
  • Body: Cast Iron
  • Connections: Flanged 1/2″, 3/4″, 1”, 1-1/4”;

Grundfos UP15-10F Circulator Pump

Grundfos UP15-10F Pump

Click on image to enlarge

Grundfos UP15-10F Pump Side ViewGrundfos UP15-10F Pump In BoxGrundfos Pump Curve Chart
GrundfosBrand: Grundfos

Grundfos UP15-10F Circulator Pump

SKU #: 59896248


Availability: Out Of Stock
Usually ships: Upon availability

Pumps with an index of UPS have a 3-step manual control, and the model with an index of UP – single stage. Rotor pump is isolated from the stator sealed sleeve, ie pump and motor form a single unit without shaft seal that uses only two gaskets. Bearings are lubricated with the pumped liquid. Pumps with index F are flanged pipe connection, pumps, with an index to provide for pumping liquids with a negative temperature (-25 C)

Product Description:


Features:

  • Built-in motor protection for longer life and better performance.
  • Suitable for a wide range of applications, including radiant heating, hydronic heating, fan coil heating, solar and other system types.
  • Whisper-quiet operation for sound sensitive installations.
  • Includes (2) Gaskets (O-rings);

Grundfos UP15-42F Circulator Pump

Grundfos UP15-42F Pump

Click on image to enlarge

Grundfos UP15-42F side viewGrundfos UP15-42F in boxGrundfos Pump Curve Chart
GrundfosBrand: Grundfos

Grundfos UP15-42F Circulator Pump

SKU #: 59896155


Grundfos Solar Pumps are single circulating pump, equipped with an electric motor with wet rotor. The pump and motor form a single unit. Ceramic bearings are lubricated rotor pumped zhidkostyu.Nasosy Grundfos Solar designed for coolant circulation in solar hot water heaters. They are also used in systems applications, refrigeration and air conditioning.

Availability: In Stock
Usually ships: within 1 business day
Qty Price
x1 $74.50 / each
x4 $286.00 / case + Free Shipping

($71.50 / each)
Product Description:


Features:

  • Built-in motor protection for longer life and better performance.
  • Suitable for a wide range of applications, including radiant heating, hydronic heating, fan coil heating, solar and other system types.
  • Whisper-quiet operation for sound sensitive installations.
  • Includes (2) Gaskets (O-rings);

Grundfos Alpha 15-55F/LC Circulator Pump

Grundfos Alpha 15-55F/LC Circulator Pump

Click on image to enlarge

Grundfos Alpha 15-55F/LC Circulator PumpGrundfos Alpha 15-55F/LC Performance Curve
GrundfosAlpha Pro is a controlled circulation pump with a rotor and a two-pole synchronous motor for the circulation of the coolant in the heating systemsBrand: Grundfos

SKU #: 59896832


Availability: In Stock
Usually ships: within 1 business day
Qty Price
$225.00 / each
Product Description:


Grundfos Alpha 15-55F/LC Circulator Pump incorporates a built-in check valve and Line Cord. With its permanent magnet motor design, this energy efficient circulator reduces power consumption by 50% or more. The unique patented AUTOADAPT feature controls pump performance automatically within defined performance range, ensuring lowest possible energy consumption without sacrificing comfort.

Features of Grundfos Alpha 15-55F/LC:

  • AUTOADAPT measures system changes automatically and maximizes energy savings.
  • Unique ALPHA Plug with line cord.
  • Terminal box for conduit connection applications.
  • Large display shows current energy consumption in Watts.
  • Large display shows estimated flow in gallons per minute.
  • A one button, easyto-use interface.
  • Nut capture.
  • Compact design.
  • Includes (2) Gaskets (O-rings).

Grundfos UP10-16B5/LC Comfort Pump, 1/2″

Grundfos UP10-16B5/LC

Click on image to enlarge

Grundfos UP10-16B5/LCGrundfos UP10-16B5/LC Performance Curve
GrundfosBrand: Grundfos

SKU #: 96433894

Grundfos Comfort Pump circulates water in the hot water system. This hot water is flowing as soon as you open valve. This pump comes with a built-in built-in thermostat that automatically maintains a given temperature in the range from 35 to 65 ° C. With the help of a timer with a daily schedule, he turns to the right for you.


Availability: In Stock
Usually ships: within 1 business day
Qty Price
$132.00 / each
Product Description:


The Grundfos UP10-16B5/LC Comfort Series Pump incorporates Line Cord and has 1/2” sweat connections.

Features of Grundfos UP10-16B5/LC:

  • Quick and easy installation
  • Whisper quiet operation
  • Line-cord
  • Unique wet rotor design
  • Bronze body;

Grundfos UP15-29SF Stainless Steel Circulator Pump

Grundfos UP15-29SF Circulator Pump

Click on image to enlarge

Grundfos UP15-29SF Circulator PumpGrundfos UP15-29SF Circulator Pump
GrundfosBrand: Grundfos

Used construction of a “wet-rotor: rotor pump is submerged in the pumped liquid and is separated from the stator thin liner of stainless steel. Thus, the motor is cooled by the pumped liquid UPA and has no air fan, so the pump operates quietly.SKU #: 59896771


Availability: In Stock
Usually ships: within 1 business day
Qty Price
$165.95 / each
Product Description:


Grundfos UP15-29SF 1/8HP Circulator Pump incorporates a stainless steel body design.

Features:

  • Built-in motor protection for longer life;
  • Stainless Steel circulator body;
  • UL/CSA listed
  • Includes (2) Gaskets;

Applications:

  • Suitable for a wide range of radiant heating and hydronic heating applications

Technical Specifications of Grundfos UP15-29SF:

  • Voltage: 115V;
  • Amperage: 0.75 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 87W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-20.5 GPM;
  • Head Range: 0-9.7 ft;
  • Horse Power: 1/8HP;
  • Body: Stainless Steel;
  • Connections: Flanged, 3/4″, 1″, 1-1/4″;

Formula for calculating the approximate pressure

Formula for calculating the approximate pressure (in meters) is as follows:

H = R · l · ZF (3)
ZF – the safety factor.

If the unit is not equipped with either thermostatic valve or faucet, ZF = 1,3; to the circuit with thermostatic valve ZF = 1,3 · 1,7 = 2,2; when the system includes both the device ZF = 1,3 · 1,7 · 1,2 = 2,6.

Having defined the so-called operating point of the circulating pump (pressure and flow) remains to find in catalogs pump with similar characteristics. For performance (V, m ^ 3 / h) operating point must fall into the middle third of the diagram (Fig. 1). Do not install more powerful pump than is required for perfect heating buildings. If the calculated point falls in the interval between the lines of the characteristics of the two closest to the parameters of Grundfos pumps, Taco pump should choose smaller capacity.

In the heating system with a few independent radiant heating circuits circulators are selected according to the hydraulic calculation for each radiant heating circuit separately. Within each separate radiant heating circuit, the branch having the maximum pressure drop [Pa], is crucial when choosing the pump. Head of H generated by the Taco pump, should bear the full pressure drop in the circuit (taking into account the pressure drop in the feeding arteries, Taco control valves, etc., most pump, and the gravitational component of pressure drop of the plots, where it acts as resistance). Maximum pressure drop in the system and the total flow volume loop determine the pump operating point (pressure and flow respectively). The Taco pump is selected correctly, if the working point lies on the characteristics of the pump at its maximum rotation frequency of the maximum efficiency of the pump (the best filing), or close to that point.