1-1/4" GF 15/26 Cast Iron Pump Flange Pair (NPT) Zoom

1-1/4" GF 15/26 Cast Iron Pump Flange Pair (NPT)

SKU:519603

Brand: Grundfos

Grundfos
Qty Price
$7.65
/ each
$29.56 / box (4 units x $7.39)
In Stock! Ships in 24-48 Hours
(100 Available)
0

Resources

Specs

Material: Cast Iron
Connection Size: 1-1/4"
Connection Type: Threaded
Type: Pump Flanges
Accessory For: UP 15 Series Pumps (Some)
UP 26 Series Pumps (Some)
UP 43 Series Pumps (Some)
UPS 15 Series Pumps (Some)

Description for Grundfos 519603

1-1/4" Iron Pump Flange (pair)

1-1/4" GF 15/26 Cast Iron Pump Flange Pair (NPT)

REVIEW SNAPSHOT®

by PowerReviews
Grundfos1-1/4" Iron Pump Flange (pair)
 
4.6

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 5 customers

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Displaying reviews 1-5

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5.0

Would buy again

By Big Rich

from Orefield, PA

Verified Buyer

Comments about 3/4" Iron Pump Flange (pair):

Prefer Grundfos over Taco period.

 
5.0

will buy again

By ric

from beaufort mo

Verified Buyer

Comments about 3/4" Iron Pump Flange (pair):

works well with pump

(1 of 1 customers found this review helpful)

 
3.0

Be aware!

By Joe the Plumber

from San Diego, CA

Verified Buyer

Comments about 3/4" Iron Pump Flange (pair):

Used two pairs of flanges to install two recirculating pumps on my home radiant heating system. After assembly and mounting the pumps all four flanges leaked! Had to remove and disasemble them. Found that the paint on the threads of all the flanges loosend and destroyed the plumbers tape during the initial assembly. YOU NEED TO CLEAN THE PAINT OUT THE THREADS BEFORE INSTALLING THE ADAPTER!!!!

 
5.0

Quality at low price

By Chris

from Calgary, Alberta

Verified Buyer

Comments about 1" Iron Pump Flange (pair):

Complete set with bolts and gaskets.

 
5.0

Simple and effective.

By Trey

from Magnolia, TX

Verified Buyer

Comments about 3/4" Iron Pump Flange (pair):

Just as expected.

Displaying reviews 1-5

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

get answers from real customers and in-house experts with AnswerBox.

10 Questions | 31 Answers
Displaying questions 1-10
  • 3/4" Iron Pump Flange (pair)

    Q:

    what are the demensions between bolt holes ?
    Asked on 1/21/2014 by marco

    2 answers

    • VERIFIED BUYER

      A:

      The bolt holes are 3 1/4 for a 1" flange
      Sent from my iPhone

      Answered on 1/29/2014 by Anonymous
    • VERIFIED BUYER

      A:

      If Grundfos, 3 1/4".

      Answered on 1/21/2014 by RockHillJR from New Mexico
  • 1-1/2" Iron Pump Flange (pair)

    Q:

    What is the measurement between the two bolt holes?
    Asked on 8/28/2013 by stubbs plumbing from clinton, md

    2 answers

    • VERIFIED BUYER

      A:

      My cast iron flanges are 1" IPS . The dimensions are; 4 3/16" end to end. Width is 2 5/8". Body thickness is
      9/16". There is a boss surrounding the 1" IPS threaded hole that adds
      5/16" to the body thickness in the area surrounding the center hole. 
      The boss is 1 3/8" in diameter. The bolt holes are 3 1/8" center to
      center. The bolt holes are cast in place, tapered about 1/2" in diameter on the pump side, 9/16 on the pipe side. The holes easily clear the
      7/16" typically used in pump installations.
      Good Luck

      Answered on 8/28/2013 by Anonymous
    • VERIFIED BUYER

      A:

      The Grundfos pump flanges measure 3- 5/32" center to center on the bolt holes.

      Answered on 8/28/2013 by Anonymous
  • 1-1/2" Iron Pump Flange (pair)

    Q:

    Will grundfos flanges work with taco pumps and b&g pumps as well, reason I ask is they seem almost half the price of the other brands, wondering why? Thanks
    Asked on 8/17/2013 by Dg from Sudbury, Ontario, Canada

    6 answers

    • VERIFIED BUYER

      A:

      As long as the inside diameter and bolt holes are the same size and match up to each other you should be fine!

      Answered on 8/20/2013 by Anonymous
    • CUSTOMER CARE

      A:

      Most residential circulator pumps work with standard flanges that are interchangeable among brands. These flanges will work with any Taco or Bell & Gossett circulator that uses standard flanges.

      Answered on 8/19/2013 by PexSupply Staff from NY
    • VERIFIED BUYER

      A:

      Yes, all the flanges interchange. Some are just a flat steel flange and some are cast steel, they both work fine.

      Answered on 8/17/2013 by Anonymous
    • VERIFIED BUYER

      A:

      Yes they are same as B&G

      Answered on 8/17/2013 by Anonymous
    • VERIFIED BUYER

      A:

      Yes they fit
      Carl Filomio
      Sirina Protection Systems Corp.
      www.SirinaFire.com

      Answered on 8/17/2013 by Anonymous
    • VERIFIED BUYER

      A:

      Yes, pumps and flanges are interchangeable. I prefer flanges with isolation valves if you do not already have a means to isolate the pump.
      Sent on the Sprint® Now Network from my BlackBerry®

      Answered on 8/17/2013 by Anonymous
  • 1" Iron Pump Flange (pair)

    Q:

    In the other q&a section copper ntp connections are recommended for installation. Will this cause dielectric corrosion? If so, what other options are there?
    Asked on 10/14/2012 by Gefert from Ohio

    6 answers

    • VERIFIED BUYER

      A:

      After 5 years of use, I've not seen any dielectric corrosion. You can also use brass, it's cheaper.
      Robert.

      Answered on 10/14/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I have used these Flanges with copper for 15 years with no problems

      Answered on 10/14/2012 by Anonymous
    • VERIFIED BUYER

      A:

      You will need to use a steel nipple and a dielectric union if you want to transition to copper.
      C. Scott Cole, PE LEED AP

      Answered on 10/15/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Although it is true that iron and copper do create a galvanic corrosion
      couple, in this example, it does not pose a problem. Here are the
      reasons: The galvanic potential of iron and copper are very close to each
      other so the potential for corrosion is low. Cast iron contains silicon
      that makes cast iron significantly more corrosion resistant than an iron
      based alloy such as common steel. Secondly the water in the system is
      self contained and thus over time becomes depleted of oxygen. Oxygen is
      necessary for corrosion. I have a 105 year old house with cast iron
      radiators and brass valves. In the 105 years there is no sign of
      corrosion of the iron anywhere near the brass valve.

      Answered on 10/15/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The other option is to use brass nipples.

      Answered on 10/15/2012 by Anonymous
    • VERIFIED BUYER

      A:

      You need to use Brass nipples (not copper). This will eliminate the corrosion. I hope this helped You.

      Answered on 10/18/2012 by Anonymous
  • 1" Iron Pump Flange (pair)

    Q:

    Do I need a 1" threaded connection, or can I solder a 1" copper pipe? If I need the threaded connection, where can I buy this transition piece to sweat copper?
    Asked on 8/11/2012 by Robbie from NY

    9 answers

    • VERIFIED BUYER

      A:

      Yes you need a threaded connection. Buy a 1" male threaded copper or brass
      adapter from pex supply to make the transition to sweat.

      Answered on 8/13/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Use a 1" MPT copper threaded coupling. Pexsupply has those.

      Answered on 8/11/2012 by Anonymous
    • VERIFIED BUYER

      A:

      They are a 1 inch iron pipe tread. You can use a simple male adaptor. Of a brass nipple or gal nipple.
      Sent from my Verizon Wireless 4GLTE smartphon

      Answered on 8/11/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes, you will need two of the item below. I copied and pasted the below
      info from PEX supply.
      First, solder the fitting onto the copper pipe. Then take Teflon tape or
      pipe dope and put it on the copper threads. Put the two bolts that come with
      the pump flange thru the flange and put the nuts onto the bolts. Then take
      a long piece of steel pipe or pipe wrench and put it in-between the two
      bolts to tighten the pump flange onto the copper fitting. Make sure you have
      a wrench on the copper fitting to keep from twisting the copper pipe into a
      bowtie. LOL.
      If you put the copper fitting into the flange first and then try to solder
      it the flange acts like a heat sink and it will take a long time to get
      the copper hot enough for the solder to flow. Do not forget to clean and flux
      both parts of the solder joint before you try to solder it.
      If you are using the pump on a hot water heating system, you do not need
      to get the flange very tight, as you will be working with low system
      pressure. If the pump is for a domestic hot water return loop, you need to get it
      tighter.
      Energy saving tip. If you have a hot water heating system try to keep the
      pressure as low as possible as the higher the pressure the more heat AKA
      money it takes to get water hot. .433 PSI will raise a column of water one
      foot. Therefore, if your radiator is ten feet above the pressure gage that
      you are reading the pressure needs to be 4.33 PSI but take it up to 5 PSI just
      to make sure. This might be TMI but being one of those green people, I
      could not resist.
      Mike
      _1" C X Male Adapter_
      (http://www.pexsupply.com/Cello-WP4-16-1-Copper-X-Male-Adapter-1024000-p)
      * SKU: WP4-16
      * Brand: Cello

      Answered on 8/11/2012 by Anonymous
    • VERIFIED BUYER

      A:

      All you need is a 1" copper x 1" threaded male adapter. Pex has one: SKU
      WP4-16. Also, most any home center should stock them as well.
      Good Luck!

      Answered on 8/11/2012 by Anonymous
    • VERIFIED BUYER

      A:

      I found one at a hardware store. 1" threaded copper connector to what ever your main system copper pipe is. You will need reducers to get down to your main system is.
      Mick

      Answered on 8/12/2012 by Anonymous
    • VERIFIED BUYER

      A:

      You need a male threaded adapter. Here is the piece you need:
      http://www.pexsupply.com/Cello-WP4-16-1-Copper-X-Male-Adapter-1024000-p

      Answered on 8/11/2012 by Anonymous
    • VERIFIED BUYER

      A:

      http://www.pexsupply.com/Copper-x-Male-Adapters-138000

      Answered on 8/12/2012 by Anonymous
    • VERIFIED BUYER

      A:

      If your Flanges are 1" Cast Iron. I would use a Brass 1" nipple, then a 1" female threaded X 1" solder adaptor. Then go from there. The Brass nipple will stop the electrolysis,(corrosion) between Cast Iron and Copper. Fittings can be found at ( Lowe's,Mennards, Home Depot, etc). I hope this helps.

      Answered on 8/12/2012 by Anonymous
  • 1" Iron Pump Flange (pair)

    Q:

    Can I get the actual dimensions of this product? I'd like to know it's footprint basically.
    Thanks
    Asked on 5/1/2012 by Wes from Los Angeles, CA

    2 answers

    • VERIFIED BUYER

      A:

      The flange is 1/2in thick, 2 1/2in wide,4 1/2in long, Bolt holes are1/2in,diameter and 3 1/4in center to center apart. With a female 1in NPT (Natoinal Pipe Thread) in the center. I hope this helps you.

      Answered on 5/1/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      My cast iron flange dimensions are; 4 3/16" end to end. Width is 2 5/8". Body thickness is 9/16". There is a boss surrounding the 1" IPS threaded hole that adds 5/16" to the body thickness in the area surrounding the center hole.  The boss is 1 3/8" in diameter. The bolt holes are 3 1/8" center to center. The bolt holes are cast in place, tapered about 1/2" in diameter on the pump side, 9/16 on the pipe side. The holes easily clear the 7/16" typically used in pump installations.
      Good Luck

      Answered on 5/1/2012 by Another PexSupply Customer
  • 1-1/4" Iron Pump Flange (pair)

    Q:

    Does this flange work with UPS26-99FC, 3-Speed Circulator Pump, 1/6 HP, 115 volt?
    Asked on 8/12/2011 by Ray from Laconia

    1 answer

    • CUSTOMER CARE

      A:

      Yes, it does.

      Answered on 8/12/2011 by PexSupply Staff from NY
  • 1-1/4" Iron Pump Flange (pair)

    Q:

    Does this flange set work with the Grundfos Alpha 15-55 F/LC?
    Asked on 7/5/2011 by Chris from NYC

    1 answer

    • CUSTOMER CARE

      A:

      Yes, it does.

      Answered on 7/11/2011 by PexSupply Staff from NY
  • 1-1/2" Iron Pump Flange (pair)

    Q:

    What are the dimesions of this flange? Center to center bolt spacing and length and width?
    Asked on 11/18/2010 by Anonymous

    1 answer

  • 1" Iron Pump Flange (pair)

    Q:

    I am purchasing the UP15-10BUC7 for my plumber to install at our new house. Does he need this product too to make the installation or can he buy this at the local plumbing supply?
    Asked on 11/7/2010 by Deborah from Dallas, TX

    1 answer

Displaying questions 1-10

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