T-fitting for gauge
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CCWKen
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I made one just like it but there's no Tee fitting. The gauge pictured threads into a FM to M reducer. The reducer threads into a hex coupler. I don't use the reducer on mine as I drilled and tapped the hex coupler to accept the gauge directly. Keep in mind that the gauge pictured is 250 bar. That's over 3600 psi so use all steel components.
radman1
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Just need to look/ask for hydraulic T fitting. Not too uncommon. I bought one at TSC but any hydraulic place will have them. Take all of your couplers/hoses with you in case you need adapters. If you just want to measure the hydraulic pressure in your tractor, you don't need the T fitting and can just blind end the gauge into the coupler or a hose.
Stupid question but I have to ask: I have the setup you are talking about... Gauge, 1/4 to 5/8 adapter, 5/8 male to male, then, finally, the male Hydraulic connector. Is it fine to use brass fittings (that I have) or are there special hydraulic adapters and connectors for high pressure? Plan to use Teflon tape on the threads.
mwb
Platinum Member
Brass is acceptable for hydraulic pressure; most pressure gauges up to 4000 psi are made of brass.
You have to be carefull where you get them though; brass fittings found at your local hardware or plumbing store are not made for high pressure (intended for shop air for example). You can get heavier fittings from a hydraulics shop. If you are using a bushing (ie 1/4NPTM to 1/8NPTF) then any source is ok. If you are using a brass tee then get it from a hydraulics shop.
If you are making a test gauge brass is fine; if you are going to leave the assembly (as pictured) in-line and it has an overhung load then I would be concerned about fatique. Steel would be better for that although not an ideal design.
You have to be carefull where you get them though; brass fittings found at your local hardware or plumbing store are not made for high pressure (intended for shop air for example). You can get heavier fittings from a hydraulics shop. If you are using a bushing (ie 1/4NPTM to 1/8NPTF) then any source is ok. If you are using a brass tee then get it from a hydraulics shop.
If you are making a test gauge brass is fine; if you are going to leave the assembly (as pictured) in-line and it has an overhung load then I would be concerned about fatique. Steel would be better for that although not an ideal design.
Kernopelli
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The brass fittings are generally for plumbing and designed for probably no more than 250-300psi applications. That said, I have seen our "mechanic" at work come over and rob our plumbing valve and fittings bins to cobble hydraulics together on our dump trucks hydraulic salt/ash spreader..... and I guess it worked despite my recommending he not use them.
That's the same advice I will give you, don't use brass and especially not copper. They may actually work for a little while but putting 2000psi on a fitting designed for 250psi is not what you want to do. Basic fittings are pretty inexpensive and worth the money if for no other reason than saving the mess and cleanup a ruptured fitting will cause. The safety aspects go without saying. This is of course assuming the fittings you have are not hydraulic fittings, which apparently they aren't or you probably wouldn't be asking.
Thanks so much for replying...
No, they are not for hydraulics. They are for plumbing. I only wanted to check the pressure for the system a couple of times... So, although it is NOT recommended... it might work in this case
I have read the warning at the bottom of every page... and understand that I should not do this I will put plywood between me and the gauge the first time, just in case.
"Safety Warning: TractorByNet.com does not review discussion forum posts for accuracy or safety. Please refer to manufacturer operator and safety manuals before operating tractors or equipment. Additionally, use caution and common sense when applying any advice you receive on TractorByNet.com, and seek professional advice before attempting professional tasks."
No, they are not for hydraulics. They are for plumbing. I only wanted to check the pressure for the system a couple of times... So, although it is NOT recommended... it might work in this case
I have read the warning at the bottom of every page... and understand that I should not do this I will put plywood between me and the gauge the first time, just in case."Safety Warning: TractorByNet.com does not review discussion forum posts for accuracy or safety. Please refer to manufacturer operator and safety manuals before operating tractors or equipment. Additionally, use caution and common sense when applying any advice you receive on TractorByNet.com, and seek professional advice before attempting professional tasks."
SCDolphin
Gold Member
In order to check pressures would the gage be set up to be inline or would it be set at the end of the hose. Doe anyone make a ready made pressure gage??
