3/4" NPT Air Whip

[HomeTheaterMan]

Does anyone know where to get a short air whip hose with 3/4" npt threads? I don't want to use a 1/2" and have it be the bottleneck of the system since I'm planning to run 3/4" lines, but the only one I've been successful in finding is on Amazon for $38. That seems a bit excessive to me.

 

[matt_i]

Are you joining air compressor to a system?

Typical is a hydraulic hose from Tractor Supply or Surplus Center. Can also order air hose by the foot plus push-on super barbed fittings from McMaster Carr.

Also of note...the ID of the fittings used to make up a 3/4" ID hose, is going to be around 1/2"....its the long length of pipe which contributes the most to flow loss rather than a throttle here or there.

 

[mike93lx]

Does anyone know where to get a short air whip hose with 3/4" npt threads? I don't want to use a 1/2" and have it be the bottleneck of the system since I'm planning to run 3/4" lines, but the only one I've been successful in finding is on Amazon for $38. That seems a bit excessive to me.

The excessive part is the 3/4" lines.

What are you running that you need that much air?

 

[HomeTheaterMan]

Are you joining air compressor to a system?

Typical is a hydraulic hose from Tractor Supply or Surplus Center. Can also order air hose by the foot plus push-on super barbed fittings from McMaster Carr.

Also of note...the ID of the fittings used to make up a 3/4" ID hose, is going to be around 1/2"....its the long length of pipe which contributes the most to flow loss rather than a throttle here or there.

Thank you! Yes, I'm planning to use it to connect my compressor to the hard air lines. I don't want to connect the hard lines directly to the compressor due to vibration.

I'll check out Tractor Supply. It looks like McMaster Carr has them too although with shipping it'll cost similar to what the one at Amazon costs. How do you add the fittings yourself that you'll need if I buy just basic hose? Do you crimp them on?

EDIT: it looks like Hydraulic hose from Tractor Supply will save me about $15. I appreciate the suggestion.

 

[HomeTheaterMan]

The excessive part is the 3/4" lines.

What are you running that you need that much air?

I've gone back and forth on this too. I'm planning to order one of the Rapid Air Maxline kits. If I went with a 1/2" kit, the kit is the same price, but the filter and whip hose I need are cheaper, but it'll only save me $50 or so.

I'd like to use this to run sanders and possibly a sand blaster and from what I've read in previous threads it seems like 3/4 line is preferred from guys on here I felt like if I was already spending this much, I minus well spend the extra $50 for the 3/4" setup.

Although it's going to get necked down to 3/8 or even 1/4" at the quick connects on most of them, so I'm not sure that I'll even really benefit from a 3/4" setup unless I hook the bigger tools up directly and skip the quick connect. I'm open to suggestions here. I'm really just going off of what I read in threads I found on here while searching. I think this is going to cost around $400 when all said and done, so I don't want to regret the whole setup over 50 bucks, but I also don't want to pay that for something that'll work exactly the same.

 

[sberry]

In some cases I like 1/2 as good or better just simply due to less reduction in final fittings, thru regulators etc. There is a common misconception that the sandblaster is a big user, actually not. Its limited by the size of the comp and doesn't have burst demand like an impact does, most other tools don't either really, sanders etc and in fact a little choke doesn't hurt them especially on starts as it conserves some air.
1/2 impact is well served by 1/2 main,,, in some cases with 2 stage even provides well for 3/4. A lot of this is length of run also, usually not a factor in small garages.

 

[lis2323]

Thank you! Yes, I'm planning to use it to connect my compressor to the hard air lines. I don't want to connect the hard lines directly to the compressor due to vibration.

I'll check out Tractor Supply. It looks like McMaster Carr has them too although with shipping it'll cost similar to what the one at Amazon costs. How do you add the fittings yourself that you'll need if I buy just basic hose? Do you crimp them on?

EDIT: it looks like Hydraulic hose from Tractor Supply will save me about $15. I appreciate the suggestion.

Hydraulic hose is a good option especially if it’s a short assembly with swivel NPT fittings already made.

I didn’t have a section handy so used regular air hose and crimped on my own fittings. It’s been in use 30 years with no probs.






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[Packard V8]

Agree, you're overthinking this one. Nothing in a home shop requires a 3/4" supply direct to the tool or machine.

jack vines

 

[ChrisLS8]

Agree, you're overthinking this one. Nothing in a home shop requires a 3/4" supply direct to the tool or machine.

jack vines

Nor most shops. Hell most are 3/8 or 1/2

 

[HomeTheaterMan]

Now you all have me thinking I should just go with 1/2". The cost difference seems soo minimal though. The only real savings would be on a regulator/filter and possible a few bucks on the shut off valve. The rest of it is going to cost a similar amount. Is there any benefit to the 1/2" other than the cost? If there is a benefit, I'll go with it. If there isn't it almost seems worth it to spend a few more dollars and go 3/4" in case I ever need it.

 

[PoorOwner]

I got one from Zoro
Part G6210937

 

[sberry]

The filters don't work well if they are too big.

 

[astroracer]

I ran 3/4" for the main trunk on my system then pulled 1/2" drops out to the points of use.
I used a 3/4" braided water line for the whip from compressor to pipe. Pressure rating was well above my system pressure and it's been in there since '91 or '92. Cost 10 or 12 dollars if I remember right...
Mark

 

[BD1]

Farm and fleet has the hydraulic hoses too. Depending on piping and accessories , you may consider adding a union of the proper PSI rating. Unions can make life easier.

 

[sberry]

I wonder what size is coming out of the comp? A hyd swivel along with the hose works well. I like the 3/4 line and fittings along with the valve for the whip if that's the output. The valves, the hose and the fittings are about 1/2 thru them. I got no problem with the rest of it being 1/2. They do have a reducing swivel too.
Hose barbs are made in all kinds of combinations that allow for reduction or upsize and can eliminate a lot of fittings. Can buy a hunk of premium air hose, use barbs too along with common hose clamps, don't need unions or swivels. If the tank has a 3/4 port can valve it with that, then use 3/4x1/2 barb and 1/2 hose etc.

 

[rlitman]

Now you all have me thinking I should just go with 1/2". The cost difference seems soo minimal though. The only real savings would be on a regulator/filter and possible a few bucks on the shut off valve. The rest of it is going to cost a similar amount. Is there any benefit to the 1/2" other than the cost? If there is a benefit, I'll go with it. If there isn't it almost seems worth it to spend a few more dollars and go 3/4" in case I ever need it.

Need it for what?

My compressor tank has a 3/4" outlet too. I run that through a ball valve (as of a couple of days ago there's also a second electronically controlled ball valve that turns off my manifold when I leave the shop), and then reduce it to 3/8" to go through my filter/regulator. That then steps back up to a 1/2" hose that feed my 1/2" copper pipes, and I've had no trouble using this system to run my jackhammer that consumes almost 30CFM (easily outpacing my sandblaster) on a 50' hose connected to my manifold.

Are you going to be running several DA sanders simultaneously? How big a compressor do you have? Have you looked at the flow curve charts?
http://www.parker.com/Literature/Literature Files/pneumatic/serv/TEC-15.pdf

100' of 1/2" line will drop your 100PSI starting air pressure by 10% at 50 CFM. Or, to put it another way, 100' of 3/8" line will only drop your pressure at the tool by 5% at 20 CFM. Are you really doing anything that uses 20 CFM? A good DA uses roughly 16 CFM. Most tools use less than that.

 

[Plump]

I guess many of us, especially me, overthink this. Pressure drops aren't really all that concerning when you look at the numbers but.....MORE POWER!! It's hard not to have the best when you're playing around with the set up. I've spent WAY too much time and money trying to get my air distribution system just right and I never have the need for as much air as I think I need.

This is why we have a Garage Journal! Love it.

 

[johninct]

I used 3/4" even for my drops. Buy a NEW Hydraulic line.