Hydraulic fittings

[6sunset6]

I just swapped out the QD on my front diverter valve. Instead of Female , Female on the diverter , Male , Female. That makes the implements Male , Female as well and they plug together when not in use. Keeps them cleaner and balances the pressure in the lines.
Some other things I will comment on.
Even though QD meet an ISO spec they seem to work better when they are made by the same company. When I swapped them out I made sure males and females were from the same co.
Pipe threads S$%%^^K. With Teflon paste on them you have to be a gorilla to get them apart. Particularly on the end of a hose attached to an implement.
I have been trying to standardize my hose fittings at 3/8 JIC . That works well.
Also SAE 6, 8 0r 10 ports work really nice.
This , of course , is all around my tractor with has 7gpm flow.
So I try to buy parts with SAE ports. I just finished a 3 pt hydraulic logging winch attachment and it was really annoying that the cross over relief and flow control valves only came with pipe threads. The ones I could afford anyway.
I have to find some project so that I can use all the fittings I have around now.

 

[kennyd]

I agree Bob, NPT fittings along with slotted screws belong in a museum-not on equipment of any kind. We have the technology to do so much better. I like JIC's and SAE fittings as well.

 

[Wayne County Hose]

People look at me funny when I say it but I wish everything would go to BSPP. British Standard Parallel Pipe. It's the one thread that can be used on about anything, anywhere.

 

[J_J]

People look at me funny when I say it but I wish everything would go to BSPP. British Standard Parallel Pipe. It's the one thread that can be used on about anything, anywhere.

Please explain why you think this way, using this reference as a guide.

British standard pipe thread - Wikipedia, the free encyclopedia

 

[wdchyd]

Wayne,

its a great fitting but who was the goofball that made the TPI just 1 TPI off in the 1/8, 1/4,3/8 thread sizes....just guess it was put there to strip all others who use them but dont realize they are bspt and not reg pipe thead...also when using bspp and the hose end is overtightened it flares out the male end (of course junking hose and adapter)

my vote is for JIC & SAE Oring Boss

also bad thing about pipe thread...because of "Interference Fit" pipe thead was never intended to be taken apart and reused (that includes BSPT not BSPP)

wdchyd

 

[wdchyd]

People look at me funny when I say it but I wish everything would go to BSPP. British Standard Parallel Pipe. It's the one thread that can be used on about anything, anywhere.

Bruce:
Sorry for calling you "Wayne" , I'll pay more attention next time....tho a new member I've always looked forward to your input and all you guys on this forum

Bill

 

[Wayne County Hose]

I like BSPP because it's the one thread that can be used about anywhere on a machine. They made it one thread off of NPT, in most cases, to keep them from being interchanged. I guess the rationale is that an experienced mechanic could tell there's a difference when it doesn't screw on easy and notice that one thread is tapered, the other parallel.

With BSPP, you can put a bonded seal on the male and now you have a port fitting. No bonded seal, you can screw a female fitting on it.

You overtighten ORB or JIC and you end up with the same mess. You overtighten any fitting, you end up with the same problem.

I don't understand what the Wikipedia reference has to do with anything.

Guys, this is just my own humble opinion, that's it. There absolutely will not be any kind of heated discussion on this so save your energy for something else. If you have a different opinion, great, I won't put anyone down for their opinion. There is no wrong or right here, just my opinion.

Andy

 

[/pine]

had been a curious lurker to this thread as a new comer to hydraulics and the plumbing hardware...

...overtighten ORG...

from the little I have looked at SAE O-Ring Boss fittings...you can't really over tighten them?....it looks to be when in the "tightened" position...it is a machined surface against another machined surface ???

the 'BSPP' thread is interesting...did not even know it existed...how is it guaged ?