Flat face hydraulic connectors are better?

[Nemmy]

I’m figuring out some front end loader attachments and was told that using flat face hydraulic connectors is better for continuous flow applications. Is that true? I’m trying to figure out if I should change the connectors on the 3rd valve on the tractor or pushback and change the two attachments I’m looking at.
Right now the cost would be a push. Trying to make the right choice for the future.

Thanks.

 

[Silvic]

I prefer them.
You will have posters say not to use them and others say only use them.

In general they cost more.
They leak/drip less on disconnect.
Much easier to keep clean and debris free.
Some say the FF lock up under pressure and can not be connected without "cracking" a fitting. Never seen that myself. I have seen that however with the ag connectors (ISO 5675 and ISO 7241-1 Series B connectors.)
The FF FIRG ISO 16028 connectors have been great.

The big boys (read big equipment) all use FF that says something to me.

 

[flingwing1969]

I prefer them.
You will have posters say not to use them and others say only use them.

In general they cost more.
They leak/drip less on disconnect.
Much easier to keep clean and debris free.
Some say the FF lock up under pressure and can not be connected without "cracking" a fitting. Never seen that myself. I have seen that however with the ag connectors (ISO 5675 and ISO 7241-1 Series B connectors.)
The FF FIRG ISO 16028 connectors have been great.

The big boys (read big equipment) all use FF that says something to me.

I have a third function for my 4n1 on my FEL. It uses the FF connectors. One side ALWAYS locks up when removing the 4n1 to put my forks on - or whatever it does it regardless of the fact that I always "stir" the hydraulics to relieve pressure (including operating the 3rd function and stirring) before I disconnect the bucket. I ALWAYS have to crack the fitting to relieve pressure. I don't know if this is a "function" of the FF or if it is something to do with the way the 3rd function was installed but it is a fact of life. I plan to install an inline valve so I can crack it open to relieve pressure when I go to reconnect.

Oh yes, the line I crack is on the 3rd function, not on the bucket.

 

[Industrial Toys]

I have dozens of the 3/8" (Tool Size) FF couplers in use. Just hate them!

Can't use them in the winter without a torch handy
Can't connect them with even the slightest pressure as with temp changes
The collar gets bent and ruined if they hit cement when falling on the ground
Various different manufacturers tend to leak when used together

Maybe it's just the 3/8 size, who knows?

 

[flingwing1969]

I have dozens of the 3/8" (Tool Size) FF couplers in use. Just hate them!

Can't use them in the winter without a torch handy
Can't connect them with even the slightest pressure as with temp changes
The collar gets bent and ruined if they hit cement when falling on the ground
Various different manufacturers tend to leak when used together

Maybe it's just the 3/8 size, who knows?

Mine are 1/2" and this is the only one I have problems with, but it is also the only FF quick connects I have on the tractor, at least ones that I use regularly. My hoe connects with the old Series B ( I think) Parker and they work great, albeit with a touch of fluid leak when breaking he connection. I think I'm going to change them out for the old style since this bucket is on and off frequently.

 

[countrybumpkin]

As for flow, the flat faces are available that flow higher rates than ag style, but the 1/2” ag style will flow more than your tractors system does. As for which people have more issues with is a toss up, I’ve seen about as many posts about FF locking up as I have ag style. The FF do drip less then the ag style , so it’s really a personal preference. For me I use ag style , a bit cheaper and a whole lot easier to find in stores around me.

 

[Aquamoose]

Wouldn’t it be great if there’s a simple “mash plate” style connector? It’s similar to trucks airline connection between the cab & trailer. 1/4” twist and it’s on regardless of residual pressure.

 

[flingwing1969]

Wouldn’t it be great if there’s a simple “mash plate” style connector? It’s similar to trucks airline connection between the cab & trailer. 1/4” twist and it’s on regardless of residual pressure.

I'm not sure the glad hand style would hold up against hydraulic pressure. The air brake system only has about 135 psi in it.

 

[flingwing1969]

As for flow, the flat faces are available that flow higher rates than ag style, but the 1/2” ag style will flow more than your tractors system does. As for which people have more issues with is a toss up, I’ve seen about as many posts about FF locking up as I have ag style. The FF do drip less then the ag style , so it’s really a personal preference. For me I use ag style , a bit cheaper and a whole lot easier to find in stores around me.

True - I've had my ag style lock up too but a quick tap from a stick always releases it. I've never had the female side lock up, only the male side and they have that convenient little tip on it to gently wack it into compliance.

 

[Oldoak]

True - I've had my ag style lock up too but a quick tap from a stick always releases it. I've never had the female side lock up, only the male side and they have that convenient little tip on it to gently wack it into compliance.

That's why I prefer to stay with that style. :thumbsup:

Tried and true, no complaints from me and thousands of "real" farmers.