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Registered
Join Date: Oct 2002
Location: SE PA
Posts: 3,188
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Push-on Hose for air/water?
I need to do some air and water hoses involving 90º fittings. Browsing through the McMaster catalog I found push-on hose, which looks easy for DIY and has a nice selection of ends available. Page 254 at http://www.mcmaster.com
Is this type of fitting reliable for long term use? No clamps--it just "pushes on" to a special barbed fitting. Push on fitting are rated for 350psi with no clamps. Traditional barbed fitting with a clamp are only rated for 150psi. I must be missing something... 
Last edited by RallyJon; 03-09-2007 at 05:21 AM.. |
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03-09-2007, 05:03 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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That type of hose is standard in the machine building industry, simply push it on (without oil as a lubricant) and it is definately good to 150 psi. And they are very good.
I think the ratings posted refer to the fitting rated pressure, and the hose rated pressure, not the assembly with the hose on the fitting. To got o 350 psi I would use a proper clamp, but at 'normal' pressures no clamps are used or required. What exactly are you using them for?
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-09-2007, 06:16 AM
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Registered abUser
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Push-Lok hose and fittings are well known brand names(Parker) in industrial use and are designed for water and air.
http://www.parker.com/hpd/literature/pdf/4281_b1.pdf |
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03-09-2007, 06:22 AM
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Registered
Join Date: Oct 2002
Location: SE PA
Posts: 3,188
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Quote:
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03-09-2007, 06:33 AM
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Registered abUser
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03-09-2007, 06:37 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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These are very good, and do not cutinto the rubber covering the way some gear clamps do;
http://www.oetiker.com/usa/start_pr_ksr_e.htm But they are definately optional, a properly installed Push-lock hose will fine for what you are doing. Press them on with a bit of soapy water, no oil.
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-09-2007, 06:46 AM
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Unconstitutional Patriot
Join Date: Apr 2000
Location: volunteer state
Posts: 5,620
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The hose from McMaster is rated for air only, according to the page.
I have used the equivalent auto stuff, Aeroquip AQP. It is really tough stuff. I bought my bits from a local bus repair shop that also sold hydraulic fittings. The fittings were brass and price was right. |
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03-09-2007, 08:18 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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Just buy Parker Push-lok. This is not a place to economize. You'll own this stuff for a long time...
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-09-2007, 08:46 AM
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Unconstitutional Patriot
Join Date: Apr 2000
Location: volunteer state
Posts: 5,620
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I just looked at the .pdf for Parker Push-Lok. The fittings and hose are identical to the Aeroquip AQP I have. It would not surprise me if the manufacturer is the same.
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03-09-2007, 09:01 AM
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1981 Porsche 911SC 3.0L
