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rp - The plan was to use a torsion transducer to find the torque applied by the air gun. Then run the gun at that setting for a set period of time so we know the approximate number of cycles. I wont know the stress in the socket, but I will be able to compare the lifespan of different socket...

Hi Guys I am currently looking at making a test rig to test the fatigue life of impact vs non impact sockets. I have attached a quick sketch of the rig I had in mind. I have never designed test rigs before so if anyone has any comments it would be much appreciated. The main problem I can see...

Got it. Thanks for the help guys. "Two hands working can do more than a thousand clasped in prayer"

Thanks Latexman, looks like that should do it. However do you know what the metric SI units for this equation are. "Two hands working can do more than a thousand clasped in prayer"http://files.engineering.com/getfile.aspx?folder=b79158f2-a84c-44a9-8e99-ac30d7b5f5f0&file=Poiseuilles_equation.bmp

Apologies I meant 2.5 litres a minute. The viscosity will be approx 38.9 cST 40°C. However the figures are not important as I require the method (equation) in which to find the answer, not the answer itself. "Two hands working can do more than a thousand clasped in prayer"

Hello I am currently designing a device to fill gearboxes with hydraulic fluid using air pressure. The idea is to pressurise a container with say 9 litres of fluid inside to cause the fluid to flow out of a hose and into the gearbox. My question is how can I calculate what pressure will need...

Ram If i'm understanding the application correctly then reducing the thickness of the stub flange will reduce the surface area which the pressure will be acting on that is not supported by the wall of the pipe. If this is the case then surely reducing the thickness from 2 x wall thickness to...

It depends on a few other factors. What will the maximum solids content of the fluid be? Progressing cavity pumps are good for large solid contents. Will these pumps be drawing from a well or tank? How many pumps will there be? 200MGD is a big old pumping station. Main types of pumps are...

Hi Ram What pressure rating will the pipe have? Also what flange standard are you using PN10/16 etc etc? This is my first post so am not sure how to (or even if you can) send a personnel message.