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All Replies on Coupler for 1/2" copper pipe to 1/4" NPT?

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View Keith Kelly's profile

Coupler for 1/2" copper pipe to 1/4" NPT?

by Keith Kelly
posted 01-20-2017 11:06 PM


10 replies so far

View papadan's profile

papadan

3584 posts in 3927 days


#1 posted 01-20-2017 11:28 PM

Any hardware or home store(HD/Lowes) has Sharkbite fittings. The slide onto the copper pipe and gives you the male or female threaded end to connect hoses or other fittings to. They also have straight splices for joining lengths of pipe together. If you can’t sweat solder the fittings onto the pipes then Sharkbites are for you. I use them all the time.

View BorkBob's profile

BorkBob

127 posts in 3251 days


#2 posted 01-20-2017 11:46 PM

copper “pipe” is actually tubing and is measured on the outside diameter. Pipe is measured on the inside diameter.

1/2 copper tubing is 5/8” OD

-- Please Pray for Our Troops / Semper Fi / Bob Ross / www.theborkstore.com

View papadan's profile

papadan

3584 posts in 3927 days


#3 posted 01-20-2017 11:59 PM

I’m sorry BorkBob, but…... this is tubing and…...... This is pipe.

View OSB's profile

OSB

147 posts in 1084 days


#4 posted 01-21-2017 12:23 AM

I prefer Swagelok fittings.

View TheFridge's profile

TheFridge

10859 posts in 2044 days


#5 posted 01-21-2017 12:53 AM

You may have to something like a 1/2pipe to 1/2 npt male to 1/2 npt coupling to 1/2 npt x 1/4 npt reducer. Or a 1/2 X 1/4 swage if you need a male thread at the end.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View Tony_S's profile

Tony_S

1043 posts in 3641 days


#6 posted 01-21-2017 10:10 AM

One of these.
http://www.supplyhouse.com/Elkhart-30320-1-2-x-1-4-Copper-x-Male-Adapter
And one of these.
http://www.homedepot.com/p/Husky-1-4-in-FNPT-x-1-4-in-I-M-Steel-Coupler-C20HOM/205332142

Bobs yer uncle….your welcome;)

Any half decent plumping outfit should stock the adapter….

-- “Wise men speak because they have something to say; fools because they have to say something.” – Plato

View diverlloyd's profile

diverlloyd

3707 posts in 2416 days


#7 posted 01-21-2017 02:51 PM

1/2”cu by 1/4” cu reducer and a 1/4” cu by 1/4 fip. That would be what I did but I had it laying around. Those are solder joints you can also order a 1/2”cu by 1/4” fip but you would need to call around. If your air hose base a female end the you would need mip instead of fip.

View splintergroup's profile

splintergroup

3053 posts in 1781 days


#8 posted 01-21-2017 03:55 PM

All my shop airlines (3/4” copper) are terminated with 1/2” MPT solder-on fittings. I then use the standard brass adapters to reduce it to the size needed (plus thread sealer/tape).

View RogR's profile

RogR

113 posts in 1424 days


#9 posted 01-22-2017 03:06 PM

No dog in this fight, but curious as to why you run copper pipe for air supply?

View splintergroup's profile

splintergroup

3053 posts in 1781 days


#10 posted 01-22-2017 03:11 PM



No dog in this fight, but curious as to why you run copper pipe for air supply?

- RogR

Easy to work with and install, corrosion resistant (water vapor in the lines), malleable in case it bursts or gets dinged, etc.

Plenty of other options for fixed lines and given the current prices of copper, I’d probably use something else today.

Galvanized or other steel pipe has rusting issues which can send small flecks of rust into the air stream.

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