Question about RTO Hubbard Supply Co 250 Up to 1" CTS Pipe Sizes

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Pipe sizes What size copper pipes is used for a 9000 BTU split unit.

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  • jandrevdh Feb 27, 2009

    What is the sizes with which the airconditioner is sold.


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Depends on the distance between the source and the unit

Posted on Feb 27, 2009

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1 Answer

How to make a banner that will swing around on a long pvc pipe.

attach banner to a second PVC pipe over size to long pipe

couple of joiners over size with blue glue to stop banner falling up or down on the swing

Nov 10, 2016 | Plumbing

1 Answer


Cut the pipe. Deburr. Push on the new sharkbite fitting. If you have to remove see below. A disconnect clip is a small orange c shaped clip sized for the size of the pipe. Sold were you bought the fitting.

How To Remove a SharkBite Fitting

  1. Place SharkBite Disconnect Clip around tube with the non-branded face against the SharkBite release collar.
  2. Push the SharkBite Disconnect Clip against the release collar and pull the tube with a twisting action to release the tube.
- See more at:

Oct 27, 2014 | Plumbing

1 Answer

How to solder copper woter pipe

Heat joint with torch, appy solder. Be careful not to set surrounding materials on fire!

Jun 01, 2012 | Plumbing

1 Answer

What size npt thread is the adaptor

Common American National Standard Pipe Taper Threads
  • NPT - National Pipe Thread Taper
  • FPT - female (internal) National Pipe Taper threads
  • MPT - male (external) National Pipe Taper threads
  • NPTF - Dryseal American National Standard Taper Pipe Thread (ANSI B1.20.3)
For NPT threads a sealant compound or Teflon tape must be used for a leak-free seal. For NPTF no sealant is needed for a sealing.
Characteristics of NPT (also known as ANSI/ASME B1.20.1 Pipe Threads, General Purpose):
  • tapered thread 1o 47'
  • truncation of roots and crests are flat
  • 60o thread angle
  • pitch is measured in threads per inch
Note! Pipe sizes do not refer to any physical dimensions. The outside diameter of a pipe or fitting must be measured and compared to a table for size identification. A 3/4" NPT pipe thread has an outside diameter - OD - of 1.050 inches.
Each thread size has a defined number of threads per inch - TPI, or pitch. The 3/4" NPT pipe thread has 14 threads per inch. Both the TPI and OD of the thread are required for positive identification of thread size because more than one size have the same TPI.
NPT - American Standard Pipe Thread Taper 1) Pipe Size
(inches) Threads per Inch
TPI - pitch Approximate Length of Thread (inches) Approximate Number of Threads to be Cut Approximate Total thread Makeup, Hand and Wrench (inches) Nominal Outside Pipe Diameter
(inches) Tap Drill
(inches) 1/16" 27 0.313 1/8" 27 3/8 10 1/4 0.405 R 1/4" 18 5/8 11 3/8 0.540 7/16 3/8" 18 5/8 11 3/8 0.675 37/64 1/2" 14 3/4 10 7/16 0.840 23/32 3/4" 14 3/4 10 1/2 1.050 59/64 1" 11-1/2 7/8 10 9/16 1.315 1-5/32 1-1/4" 11-1/2 1 11 9/16 1.660 1-1/2 1-1/2" 11-1/2 1 11 9/16 1.900 1-47/64 2" 11-1/2 1 11 5/8 2.375 2-7/32 2-1/2" 8 1 1/2 12 7/8 2.875 2-5/8 3" 8 1 1/2 12 1 3.500 3-1/4 3-1/2" 8 1 5/8 13 1 1/16 4.000 3-3/4 4" 8 1 5/8 13 1 1/16 4.500 4-1/4 4 1/2" 8 5.000 4-3/4 5" 8 1 3/4 14 1 3/16 5.563 5-9/32 6" 8 1 3/4 14 1 3/16 6.625 6-11/32 8" 8 1 7/8 15 1 5/16 8.625 10" 8 2 16 1 1/2 10.750 12" 8 2 1/8 17 1 5/8 12.750 14" 8 14.000 16" 8 16.000 1) The taper is 1/16 inch in an inch, which is the same as 3/4 inch in a foot (angle 1o 47')
NPT threads are not interchangeable with NPS - National Pipe Straight - threads.
NPT threads may look similar to ISO 7/1 threads. However, ISO and NPT threads should not be mixed. ISO threads have 55o taper angle versus 60o for NPT. The NPT root and crest configurations are also different from ISO. For ISO threads pitch is usually measured in millimeters (may be expressed in Inch). The pitch are different.

Feb 28, 2011 | RTO 1 1/4" Drop Pipe Bronze Pitless...

1 Answer

Cant get soder to hold on copper pipe soder flakes away doesnt stick

make sure joints are clean and sanded,flux-use mapp gas in torch burns hotter then propane,needed for 95/5 solder preheat up and down pipe for a few inches then do joints,keep you torch moving around joints it'llget a silver color then its ready.Don't get to hot or it will burn up no water in the line or you'll never get it,cleaning pipe and fitting is most important

Jan 28, 2011 | Nibco Reducing Tee Copper X Copper X...

1 Answer

We would like to connect an imperial us copper pipe to an Australian copper pipe. These are water pipes in peoples homes. We are using the imperial standard, which is a bit different from the Australian. I...

they make a piece that fits numerous sizes of pipe, it just slides on, at the Home Depot I think they are called the Gator Bites, lowes has similar but doub't know the name, you have to know what size you are close to ie 1/2 , 3/4 etc

Dec 18, 2009 | Plumbing

3 Answers

What size pipe do use to fix a sprinkler leak? got a leaking pipe on my front lawn from so i cant put my automatic sprinklers on what sixe pipe and other things do i need to fix it?

It is probably plastic pex tubing and you can splice in a piece where the leak is, but you need a special tool to expand the tubing to put in the fittings or couplings ask at your local hardware store, they may have one you can barrow.

Nov 09, 2009 | Plumbing

1 Answer

Moved into house with damaged joint in external soil pipe from upstaira shower room

You didn't state the size of the pipe or if it is PVC(plastic) or Cast iron. Two rubber couplings can be used to repair the joint. A 12" section, 6" on either side of the joint needs to be cut out. Cut a piece of schedule 40 drain/waste pipe same diameter as existing pipe to size(just under 12"). Take two rubber couplings (sized for your pipe) and place on each end of pipe joint, and tighten clamps.
This fix will work on cast iron pipe, but there may be another means of repairing the joint, so get back to me with more info about the pipe and joint.

Aug 02, 2009 | Plumbing

1 Answer

How to install 3/8 compression fitting? I can not put the nut in the pipe.

This is because the ferrul ring has been compressed on the pipe and is very tightly secured under the nut. There is a very handy puller available which will pull the nut and ferrul off of copper piping. Without the special tool you are probably going to be faced with cutting it off and starting over again if your project affords that room. If the nut and ferrul appear good can you stay using the existing nut and ferrul? If you have no room to afford cutting and starting fresh,the nut and ferrul can be split or cut off which is somewaht of a chore. Ive got a little dremel cutting wheel that splits them off fairly well but have to bevery painstaking not to damage the pipe with the grinder wheel

Jun 29, 2009 | Union Pipe Fitting - 3/8 In Brass...

1 Answer

How to lay out 3'' pipe 45degree to 10'' pipe size

measure both opens from center too floor then mulip;t it times 1.41 thats your cut piece

Mar 25, 2009 | Plumbing

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