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Main product image of UP43-75F, Circulator Pump, 1/6 HP, 115 volt
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UP43-75F, Circulator Pump, 1/6 HP, 115 volt
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52722373 has been discontinued
Discontinued March 6, 2020
This product was discontinued by the manufacturer.
Suggested Alternative:
UPS26-99FC, 3-Speed Circulator Pump, 1/6 HP, 115 volt
Brand:
Grundfos
SKU:52722512
(77)
Order by today, receive 147 by Tuesday
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Product Highlights

Product Highlight: Voltage
115V
Product Highlight: Horse Power
1/6 HP
Product Highlight: Connection Type
Flanged x Flanged Connection
Product Highlight: Max Flow (GPM)
41 MAX GPM
Product Highlight: Max Pressure (PSI)
145 MAX PSI
Product Highlight: Material
Cast Iron

Description

Note: This circulator requires:
539605: 1-1/2" Cast Iron Flange Set (For UP43 Flange Mounted Pumps Only)

Features
  • 1/6 HP
  • 115 Volts
  • Pump Connection: GF 40/43 Flange
  • Built-in motor protection for long life
  • Multiple accessories for a variety of applications
  • Whisper-quiet operation for sound sensitive installations
  • Applications include, Hydronic heating, Fan coil heating, Solar heating, and Radiant heating systems

Specs

Material:

Cast Iron

Amperage:

2.15

Application:

Heating

Voltage:

115V

Max Pressure (PSI):

145

Type:

1-Speed Pump

Horse Power:

1/6

Max Flow (GPM):

41

Flow Range (GPM):

0-41

Max Head (Ft):

25

Head Range (ft.):

0-25

Hertz:

60

Phase:

1

RPM:

3150

Temperature Range (F):

32°F - 230°F

Connection Size:

1-1/2"

Connection Type:

Flanged x Flanged

Contact

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Product Image of UP43-75F, Circulator Pump, 1/6 HP, 115 volt
UP43-75F, Circulator Pump, 1/6 HP, 115 volt
SKU: 52722373
(9)
Cast Iron
2.15
Heating
115V
145
Cast Iron
1.9
Heating
115V
150

4 Replacement Parts

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Need help finding a replacement part?
Fill out the part request form and someone will get back to you shortly.
PART REQUEST FORM

Product Reviews

5 out of 9 reviews
100% would recommend this product
5
out of 9 Reviews
100% would recommend this product
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Showing 1-9 of 9 reviews

Running for 14 years

I have been running this pump on a large hydronic heating system, (6 zones 5,000 sq ft) for 14 winters with zero issues.It is quiet and powerful, as well as very reliable.
Steve
UT
7 years ago
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I would buy this item again

Easy to install
Bad289
Columbia city
8 years ago
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Circulator Pump UP43-75F

Was an exact replacement. Used in a 3 story apartment building for hot water heat. High circulation rate.
Kirk
Edinboro, PA
11 years ago
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Easy installation

the pump was an updated version of the same pump and installation was very easy great pump.
gus
Tioga,ND
11 years ago
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perfict fit

great retro fit
boss man
Arlington,tx
11 years ago
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I woud buy this product again!

These pumps are great, we have no problems installing them. We use these on our boilers.
Snowman
Findlay, Oh
12 years ago
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Received order fast and quickly. No foo

Exact replacement for a burned out pump. Great pump, but Winter freeze of system caused loss of water in system.
Tom
Klamath Falls, Of
12 years ago
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Great Pump

Simple! Great Pump
Steve
Post Falls ID
14 years ago
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Great stuff

Replaced a 50 year old pump for which parts were unavailable. Smaller, quieter, cheaper than the competition and it performs as needed. I got no complaints at all.
Probitas
Milwaukee, WI
14 years ago
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Product Q&A

4 Questions
4 Questions
ASK A QUESTION

Q: My Grundfoss 52722363 says max temperature is 230F. The spec sheet says about 70 degrees less, what's up? This could be a problem if impeller is rated for lower temp but unit is rated higher.

Asked by Ross 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The liquid temperature range is 32-230 degrees. The maximum ambient temperature: 104 °F, and the ambient max at 176°F for the liquid is 176 °F.

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Q: is the rotor impellar available as a replacement part?

Asked by auburn cleaner 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

The rotor impeller is not available as a replacement part for this pump.

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Q: what is the distance form flange to flange and the distance between bolt holes

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Flange to flange distance is 8 1/2"; bolt to bolt is 3 7/16".

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Q: what size circulating pump would i need for an 11/2'' line and it feeds 6 single level townhomes that are all baseboard heat

Asked by 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

There are many factors that contribute to pump sizing. For example, you need to know the run for the zone with the most amount of pipe, as well as the gallons per minute and the feet of head needed for your application.

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