When a valve says it has an SAE 8 connection, how do I know what diameter it is? Is the '8' mean 8mm? With pipe thread, it's easy... 1/2" npt is 1/2".
thanks,
Ian
thanks,
Ian
SAE hose dimensions
- Thread starter Haywire Haywood
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tboarder2602
ArboristSite Lurker
I believe (90% sure) that SAE size is the number in 16ths of an inch. For example SAE 8 is 1/2 inch, i.e. 8/16 = 1/2. SAE 12 is 3/4, 12/16 = 3/4, etc.
I hate it that all the different types of couplings are called something different but are pretty much the same thing. SAE, NPT, etc. I know JIC is a flared compression fitting but the sizes are still confusing.
I hate it that all the different types of couplings are called something different but are pretty much the same thing. SAE, NPT, etc. I know JIC is a flared compression fitting but the sizes are still confusing.
That makes sense... the valves that are offered in 1/2" npt are also usually the ones that offer SAE-8 sizing too.
thanks,
Ian
thanks,
Ian
Swamp Yankee
Addicted to ArboristSite
www.parker.com
If you visit and navigate around that site you'll find just about anything you need to answer questions on hydraulics.
Also do a search on Weatherhead, or a more general search on SAE Hydraulics.
If you have a decent Parker distributor near you, or if you call Parker directly, they'll send you more catalogs with all the SAE, JIC, and NPT specs than you can imagine. You can also download them from Parker's website but most of them are very large files that can take forever, even with DSL or cable.
Hoses and fittings are typically sized by 1/16s of an inch, so #8 would be 1/2 inch, #6 3/8 etc. Just like everything else the world of metric fittings is invading. Depending upon where something is made, not necessarily marketed, you could be dealing with metric or (GASP) BSPP.
Nothing's ever easy, hope this helps.
Take Care
If you visit and navigate around that site you'll find just about anything you need to answer questions on hydraulics.
Also do a search on Weatherhead, or a more general search on SAE Hydraulics.
If you have a decent Parker distributor near you, or if you call Parker directly, they'll send you more catalogs with all the SAE, JIC, and NPT specs than you can imagine. You can also download them from Parker's website but most of them are very large files that can take forever, even with DSL or cable.
Hoses and fittings are typically sized by 1/16s of an inch, so #8 would be 1/2 inch, #6 3/8 etc. Just like everything else the world of metric fittings is invading. Depending upon where something is made, not necessarily marketed, you could be dealing with metric or (GASP) BSPP.
Nothing's ever easy, hope this helps.
Take Care
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Weatherhead is made by Eaton. Here is a web address for Eaton/Aeroquip hydraulics. There are many useful links on the left hand side.
http://www.eaton.com/EatonCom/Markets/Hydraulics/index.htm
http://www.eaton.com/EatonCom/Markets/Hydraulics/index.htm
http://hydraulics.eaton.com/products/pdfs/fc/e-srov-ts009-e.pdf
pdf online of the best small source I have found. paperback booklet is about 3 x 5 inches.
SAE 'dash numbers' are in 1/16 inch. -8 or -08 is 1/2 inch nominal. Oring, or JIC (37 degree flare) or o-ring face seal are all different threads. Adaptors and hose ends can do jump sizes also, but I would avoid because they are a bit harder to buy in consumer channels: -8 half inch port to -12 MJIC, -8 hose to -12 female JIC swivel, etc.
npt pipe thread, well the ID was 1/2 inch a couple hundred years ago, but now it varies. OD is always constant.
NPT is about the strongest common thread form, but PITA to seal. Too loose, leak. Too tight, crack housings.
Parker has a 'turns form finger tight' method for NPT, until you get mechanics feel. I don't have a link here.
pdf online of the best small source I have found. paperback booklet is about 3 x 5 inches.
SAE 'dash numbers' are in 1/16 inch. -8 or -08 is 1/2 inch nominal. Oring, or JIC (37 degree flare) or o-ring face seal are all different threads. Adaptors and hose ends can do jump sizes also, but I would avoid because they are a bit harder to buy in consumer channels: -8 half inch port to -12 MJIC, -8 hose to -12 female JIC swivel, etc.
npt pipe thread, well the ID was 1/2 inch a couple hundred years ago, but now it varies. OD is always constant.
NPT is about the strongest common thread form, but PITA to seal. Too loose, leak. Too tight, crack housings.
Parker has a 'turns form finger tight' method for NPT, until you get mechanics feel. I don't have a link here.
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steveman12
ArboristSite Lurker
I found a chart that lists dash numbers and what they mean for a lot of different types of thread. Its really handy when you're trying to figure out what size hydraulic fitting or hydraulic hose you need.
