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| judgment_arms |
 Posted: 04/26/2008 8:37 AM Post subject: |
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The Judge
Joined: 17 Oct 2006
Posts: 1216
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| POLAND_SPUD wrote: | ...but we no almost nothing about malleable iron fittings...
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They’re made in China, are actually super low carbon recycled steel, sometimes cast so poorly they are square, and have a pressure rating of 150psi, although I wouldn’t trust them much past 60-80psi.
Think of them as black pipe’s DWV…  |
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| elitesniper |
| Posted: 04/26/2008 9:28 AM Post subject: |
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Brigadier General
Joined: 13 Oct 2007
Posts: 991
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So you trust pvc move then black pipe?  , anyways I think ill have to keep this at a 5x-6x mix due to my ignition witch is only a peizo, might have trouble sparking at higher mixes, I should get healthy carnage results  |
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| DYI |
| Posted: 04/26/2008 10:15 AM Post subject: |
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Rear Brigadier
Joined: 07 Jul 2007
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I've used the malleable iron fittings at 500 psi, but I don't advertise that as being safe, and I have no idea how close it is to their failure point. The only one of those on my hybrid is the union, and I really don't care if that fails, as I'm getting a 3000psi one from McMaster in a few weeks anyway.
I definitely wouldn't take this hybrid to 15x unless I was a long way away from it.
And where did you get that ball valve? Even McMaster doesn't have brass ball valves rated that high. |
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| bigbob12345 |
| Posted: 04/26/2008 10:16 AM Post subject: |
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Experienced n00b
Joined: 01 Dec 2007
Posts: 1516
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| judgment_arms wrote: | | POLAND_SPUD wrote: | ...but we no almost nothing about malleable iron fittings...
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They’re made in China, are actually super low carbon recycled steel, sometimes cast so poorly they are square, and have a pressure rating of 150psi, although I wouldn’t trust them much past 60-80psi.
Think of them as black pipe’s DWV… |
Well i take them to 350psi regularaly and im doing fine, no BOOMyet
edit DYI beat me to the malleble iron high pressure thing |
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| elitesniper |
| Posted: 04/26/2008 10:50 AM Post subject: |
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Brigadier General
Joined: 13 Oct 2007
Posts: 991
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I actually have no idea where the valve came from, my dad said he got them from a hydraulic factory place where his friend works and he just gave me like two of them since he knew I was building something that required high pressures.
I think this website I just found may be helpful about the iron fittingshttp://www.engineeringtoolbox.com/iron-threaded-fittings-d_855 .html |
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| POLAND_SPUD |
| Posted: 04/26/2008 14:30 PM Post subject: |
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Brigadier General
Joined: 13 Oct 2007
Posts: 809
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yeah I use them all the time and I take them regulary up to 30 - 35 bar...
but still we don't know how much they can take so it would be a good idea to check it |
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| LikimysCrotchus5 |
| Posted: 04/26/2008 16:56 PM Post subject: |
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Brigadier General
Joined: 04 Sep 2007
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| DYI wrote: | | And where did you get that ball valve? Even McMaster doesn't have brass ball valves rated that high. |
Well its not brass; its hydraulic carbon steel, but they are rated up to 7250 psi depending on size on mcmaster: part number 4715K15 |
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