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What do i have here?
Posted: Sat Feb 07, 2009 12:09 pm
by john bunsenburner
Posted: Sat Feb 07, 2009 12:12 pm
by Combustion Monkey
It looks like a grease fitting to me. I think its called a zerk fitting.
Posted: Sat Feb 07, 2009 12:16 pm
by john bunsenburner
Whats that used for?
Posted: Sat Feb 07, 2009 12:19 pm
by Combustion Monkey
They are installed on sealed points of movement that need to be greased such as a car u-joint. When you want to grease the part a grease gun is attached to the nipple and you pump the joint full of grease.
Posted: Sat Feb 07, 2009 12:21 pm
by john bunsenburner
Damn f*!? &&*ç%"*°
ah now its out of my system...Can one of you help me build a check valve then?
Posted: Sat Feb 07, 2009 1:05 pm
by jeepkahn
john bunsenburner wrote:Damn f*!? &&*ç%"*°
ah now its out of my system...Can one of you help me build a check valve then?
they are check valves, however they are made for highly viscous fluids such as grease or oil... they make similar fittings for gases.. they're alittle pricier due to the extra precision needed to seal gases...
Posted: Sat Feb 07, 2009 1:12 pm
by john bunsenburner
Well i need a check valve for gasses and i need it quick so il try and buil it, help needed.
Posted: Sat Feb 07, 2009 1:53 pm
by jrrdw
What gases and pressures are you working with? I'm guessing something to do with a mini if you are trying to work with small check valve's like grease fittings.
Combustion Monkey hit the nail on the head, "Zerk" fittings used to inject grease into cross bearings and pivot points on machinery and automotive applications.
Posted: Sat Feb 07, 2009 2:02 pm
by john bunsenburner
I am using air and i am building a two stage pump to reach max pressures of 50bar, the pump will be driven by a small electric motor and will be fed from a 10bar compressor. Maybe i should just build a check valve seeing as it is fairly complicated to get anythign over 10mm here. Advice appriciated.
Posted: Sat Feb 07, 2009 5:41 pm
by jrrdw
Did you check McMaster-Carr? I'm guessing you want it in-line???
Posted: Sat Feb 07, 2009 6:01 pm
by john bunsenburner
im swiss..no mc master
Posted: Sat Feb 07, 2009 6:04 pm
by jrrdw
Where are you planing to mount the check valve?
Posted: Sat Feb 07, 2009 6:09 pm
by john bunsenburner
At the bottom of the piston tube which will be sealed with a blob of molten lead.
Posted: Sat Feb 07, 2009 6:34 pm
by maggotman
make sure toy have a stop i can se your plunger firing out at you with 10 bar behind it
Posted: Sat Feb 07, 2009 6:34 pm
by jrrdw
Your loosing me now, why mount it there? The compression will be above the piston.
(thse are my attempts to work with expanding foam, my hands are covered and i am clueless on how to get rid of it...