A talk about sourcing proper hoses

[malendro]

Hello guys,

After reading and looking for hoses for two days it would be nice if we start a discussion about where we can find nice ones, in assorted lengths and with the proper fittings.

I have been looking specifically for "Stainless Steel braided hoses with smooth PTFE cores, with female 45degree SAE flare fittings in 1/4" and 3/8" sizes"

I am disappointed to say that i have only found a $488 set from TerppExtractors. At this price point 3 hoses alone represent roughly 30% of the cost of my MkIII build, they are also not the length, or quantity i would prefer.

The next off the shelf solution i found are hoses of the same materials, but with 37degree JIC fittings, at a reasonable price point of about $50 each.

I have read that 1/4" 37deg and 45deg flares have the same thread pattern, and i have read of at least one person using them successfully, and also at least one article saying they should not be used interchangeably. 3/8" don't have the same thread so thats takes us back to the original issue of sourcing proper hoses.

So, how do you guys get your hoses:
-Pay for the value added kits from Terpp?
-Have them custom made? By whom?
-Buy of the shelf lenghts with SAE fittings?
-Mix and match with SAE fittings and JIC hoses?
-Or just get JIC fittings everywhere for the affordable JIC hoses?


Is there value to having 45deg SAE fittings?
Pressure rating wise?
Or connectivity wise? Is this the standard found on vacuum pumps, refrigerant pumps, or refrigerant collection tanks?

 

[ple1ades]

http://www.delikon.com/products.htm

http://www.pureflex.com/hose.php

 

[malendro]

I found these where you sent me.

http://www.delikon.com/teflon.html
doesn't list ends available, but I guess you have to call for a custom order.

http://www.pureflex.com/PDF/smoothflex.pdf
For these I notice that the 45deg SAE fittings are not listed in the brochure, and Im not sure that the JIC is the proper choice

Is it not possible to use off-the-shelf hoses?
A man can only dream his hose will be cheap and readily available.

 

[djelliott916]

I am having mine made at a local place out of Parker 919 hose.

 

[HighStateToke]

http://processhose.com/industrial-hose

 

[malendro]

Hey HighState,

I looked at this site you shared and it looks nice, but looks like they don't offer SAE ends.

Are you mixing and matching SAE fittings with JIC hoses? Or do you completely switch to the JIC standard?

 

[BigJohnny]

check any parker store.... most of them can make the hoses on site.

 

[Gray Wolf]

Unisource, Associated Hose, Motion and Flow, and Swageloc can all custom make stainless overbraided PTFE hoses any length, and with any stainless fitting combination. We have them all locally, as they are national chains, and ship.

We use MNPT ends where possible, and JIC where we need the swivel or are mating a JIC or flare.

 

[pharmco]

Discount Hydraulic hose

 

[malendro]

Pharmco,

I spoke with someone from there and they said they would help me build my hoses, although im interested about getting the overbraided kind, which they dont seem to have.

Its nice that they cleared up my doubts about SAE and JIC fittings. Rep said that for 1/4" JIC hoses, not only is the thread pattern the same, but they also come with a dual cone that will seal to both 37 and 45deg flare fittings.

 

[pharmco]

Pharmco,

I spoke with someone from there and they said they would help me build my hoses, although im interested about getting the overbraided kind, which they dont seem to have.

Its nice that they cleared up my doubts about SAE and JIC fittings. Rep said that for 1/4" JIC hoses, not only is the thread pattern the same, but they also come with a dual cone that will seal to both 37 and 45deg flare fittings.

Yeah, I don't think they have that, I got the hoses here: http://www.discounthydraulichose.com/product_p/abr14-05.htm not sure what the shape of the hoses is though.

What are the benefits of the overbraid? Better flow?

Yes, with the 1/4, entirely interchangable, although once you get to the 3/8 size, you need to have SAE if you use that instead of JIC.

 

[Gray Wolf]

Yeah, I don't think they have that, I got the hoses here: http://www.discounthydraulichose.com/product_p/abr14-05.htm not sure what the shape of the hoses is though.

What are the benefits of the overbraid? Better flow?

Yes, with the 1/4, entirely interchangable, although once you get to the 3/8 size, you need to have SAE if you use that instead of JIC.

The overbraid provides protection and its burst strength.

 

[BigJohnny]

Unisource, Associated Hose, Motion and Flow, and Swageloc can all custom make stainless overbraided PTFE hoses any length, and with any stainless fitting combination. We have them all locally, as they are national chains, and ship.

We use MNPT ends where possible, and JIC where we need the swivel or are mating a JIC or flare.

Not any fitting. A 3/8" NPT with live swivel does not exist

 

[malendro]

I think i saw 3/8 npt male swivel fittings on braided hoses in discounthydraulichose

 

[malendro]

I have another couple of questions guys

First about hose end fitting materials:

What other materials besides stainless steel are acceptable?

Non stainless fittings seem to be very popular in hydraulic hose applications with plated steel or brass being around 10 times cheaper than the same end in SS. Would any of these materials be potentially hazardous? What is the need to stick to SS?

Someone please clear my memory up because i cant find the source of this: although I have seen recommendations to use stainless steel everywhere because it is more sanitary, I think i have also read a thread around here complaining that stainless-on-stainless sealing surfaces where causing leaks.



Regarding hose diameter and length:

Anybody thought about using 1/2" hoses? For recovery specially?
I believe this would be very beneficial for passive setups.

And what about shortening the length of this recovery hose?
Between a 4ft and a 6ft hose could i see significant improvements when running passive? Active?
Is a shorter hose better than having an extra 2ft of gravity?
Would you say that those 2 extra feet come in handy in a way you wouldn't like to do without them?

Also, is there a reason why we stick with SAE (45) fittings? Are these the same fittings found in vacuum pumps,refrigerant pumps, and refrigerant tanks?

Finally, I have seen some MNPT fittings with swivel and wanted to pose the question. If using this threaded directly to the 3/8 valve instead of using a flared fitting would be more recommendable?

 

[Gray Wolf]

Not any fitting. A 3/8" NPT with live swivel does not exist

Not sure I understand I understand our point correctly, but we use MNPT on both ends of a hose, when we install the pieces they are attached to separately with tri-clamps.

We also install MNPT on one end of a hose and use a female JIC on the other end, when we need a swivel.

 

[malendro]

I think BigJohnny was referring to a swiveling 3/8" male NPT hose end that has managed to elude him. However, I believe I have seen this exact termination as an option at discounthydraulichose, but not in stainless steel.

 

[thatonedude]

I get all my hoes from the parking lots of bars at closing time

 

[malendro]

That joke was certainly overdue in this thread.

But serious talk, many of the questions i'm posing here can help noobs, like myself, get their shit together. So please chime in if you know the answers to any of the questions i made in a recent post

That way we can cover most topics that involve hoses in a single place, and the collective knowledge will help others in sourcing their hoses faster, cheaper, safer, and better.

 

[Gray Wolf]

I think BigJohnny was referring to a swiveling 3/8" male NPT hose end that has managed to elude him. However, I believe I have seen this exact termination as an option at discounthydraulichose, but not in stainless steel.

I understood his plea, but was attempting to point out that a swiveling MNPT isn't necessary if any one end of the hose is clamped, and if it isn't, a MNPT X Male JIC fitting, inconjunction with a swiveling female JIC hose end, will also solve the problem.

Thank you for pointing out I was ineffective in that communication and hope this is more clear!