I'd be more worried about the load of each leveling foot on the immediate ground than the combined load. 1" round foot = 109psi. Pending what the floor is made of that could leave an annoying mark on the floor once it sits for a bit. To counter it - lay down 2 pcs of 2x4 so it raises the height...
With digital measurements you can get 'creative' values that can't actually be used by the tool. IE the caliper that measures out to .00005", the tape measure with 1/64ths marks that has a 1/4" wiggle end (yes I know the purpose of the wiggle end, do you think it repeats to 1/64ths?), or the...
What application would a centrifugal pump be in where inlet pressure = outlet pressure? Where does the energy go? If volume in = volume out and pressure in = pressure out. I admit to not being intimately familiar with pumps.
Easy; Put a check valve after pump (probably go for a low pressure drop flap valve or equivalent.) Install a pressure switch at 15psi~ after check valve. When a cooling valve opens the pressure switch will kick on the pump. When all the valves close it will shut the pump off. Disadvantage is...
This sounds like a pellet gun. (Sorry if I just stepped all over your IP.)
If it's not; It sounds like you should buy a pellet gun and open it up. They sell 2000 psi pellet guns for a thousand (way less than a CFD package that could analyze this) that shoots 1/4" pellets. As a bonus; if you're...
Can someone explain to me why adding a note of "Max Rz 125 microinches" doesn't cover this requirement? (In practice - if you want 125 microinches Ra then you should allow a bit more; 200 microinches(?) Rz.)
I get why Ra and RMS won't cover this issue. Those are varying methods of calculating...
What is the purpose of this theoretical torque? I would think if you're trying to justify motor design or ensure the motor doesn't fly off it's housing and turn in to a bladed top by a strike then turning down a small section of the shaft between the blade and motor would achieve that. (or...
What standard test would this be in violation of? I've not heard of a proofload test designed around putting a bolt in compression. This isn't a tensile proofload of the bolt (skidmore or equivalent). This isn't proofloading a nut.
As best I can tell; this is an experiment. A near-useless...
I hadn't considered the salt damaging the pump. That's very much right in front of my eyes. Thank you for the obvious observation. I assumed oxides since the unit was regularly filled with particles. While I normally tend towards failure to maintain, in this case I believe the pump was simply...
I have a pump in our manufacturing facility that is exposed to conductive particles (aluminum oxide to be specific) daily. The first pump selected (dayton 4JMW5) was an air cooled guy which shorted out and sparked in the most enthusiastic of ways after approximately 9 months of service. In...
Agreed, I took the simplified approach that negates joint stiffness. I should have paid more attention to my own link to realize you were one of the main contributors!
Either way; grade 5 bolts at 5/8" can each support 14400 clamp load per eng toolbox. OP has 4 bolts. Estimates above show...
@YoungTAKI
You posted...
"I wanted to increase the bolt safety factor to 3.5, by reducing preload."
That is a misconception with bolting. When the bolt is preloaded (say to 1000lbs) the members (your W-beams) come in to compression. As the members become loaded the compression in the member...
On the lead screw idea...The plate would be fixed to the lead screw and rotate with it. The pillow block bearings would have to be replaced with something keyed/nut.
Does the plat have to just spin 90? Or does it need to just end at 90? IE - attach to a screw and let it spin forward 100mm and...
There is a halfway. Changing an oil filters generally don't require extensive study of the service manual. By the time you're breaking loose a connection on the crank then it's time to do a manual review for the gotchas. Maybe the manual was well laid out, maybe it wasn't.
Safety decals are...
I'm taking that as tongue-in-cheek regarding societal audiences in which case see response below. If you're making a technical point then it flew over my head. Yes methane does have carbon? but it used carbon from atmosphere/other carbon producing so it should end up being neutral?
I suggest we...
Getting my 'wait for the coffee to kick in to do my real job technical reading' in for a morning I ran across the Sabatier reaction. Effectively it uses hydrogen + carbon dioxide to create methane + water with a theoretical limit of 80% efficiency. The benefit being that hydrogen may be provided...
What are some of the dimensions? 2.4kgs is relatively light weight. I would expect more error from the shafting being not normal to the surface than error generated by the deflection from 2.4kgs. But without any dimensions that cannot be said for sure. Off eyeball-o-meter if the washer is 2mm...
Pipe was dragged 105ft with a 13" break.
"Diver reports and footage from remote-controlled submarines showed that a 4,000-foot section of a nearly 18-mile pipeline had been displaced about 105 feet and had a 13-inch split along its length, according to the joint unified command that is...
@IFRs
I've never worked in tanks so bare with me here. For my own curiosity
I looked at the linked photo and got a chilling image of an operator being in-between the tanks when a failure occurs. Specifically someone attempting mitigation or the like during the initial phases of failure. IE...
