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EngMark how do you intend to limit your engine speed while motoring the pump? In my experience engine overspeed is likely unless you have some sort of braking on the engine (like a jake brake on a diesel). It would be a good idea to contact application engineers at Sauer Danfoss and/or the...

Machinery Handbook is a valuable resource.

Kenat I agree function should be the main concern. But there are other limiting factors including material availability, available processes and cost. Unfortunatly cost frequently has an unbalancing influence on these decisions. Fot the OP my idea is to evaluate the needs of the part or the...

Do you have a shop standard? Many of the drawings I have used and written have default language that refers to a shop standard for anything that is not explicit on the drawing. It is an incomplete drawing as someone else noted. Additionally I could not even begin to guess an appropriate rule of...

shears, what components are in your system? If it is pump > motor then you follow hydtools advice and get whatever fits. If you have large differential cylinders you need to calculate the return flow on retract and size accordingly. The second link hydtools posted has some scfm to gpm numbers...

texag how complete is the data you mentioned? If you have enough points forget the thermo and use the data to find a best fit curve. I have created several usable equations using the graph function of Excel.

The end customers practices will play heavily into the selection of monitoring equipment. If they are operating with the intent of having zero unplanned downtime then a case drain flow meter on an axial piston pump would be a wise choice along with the correct fluid conditioning and monitoring...

The Goal by Eliyahu M. Goldratt and Jeff Cox It is anecdotal but very informative and will prepare you for books that deal with application.

Some more food for thought. The specific heat of the components will factor heavily into an analysis of this. Air 1000 kJK/kg Liquid H2O 4000 kJK/kg Solid H2o 2000 kJK/kg (approximate values)

IRstuff are you suggesting that the cooler wall is permated by air or water depending on the contents of the cooler? MintJulep I assumed at the intial state the contents of the cooler were at a uniform temperature and the ambient air is the higher temperature. Hence heat would travel from the...

iirc heat conduction through a wall (the cooler) is dependent only on the delta T. Then the heat transfer would be constant regardless of the contents. That being the case you would be better off with the water. It would seem that the conductivity of the water would only be an issue if there...

NiZa a good source for testing information would be a local fire extinguisher repair facility. They pressure test the extinguishers before filling them. Whoever provides that test equipment might even have a packaged solution for you. Burst tests do exist for cylindrical objects if you live in...

Float switches are an economical option for tank level. Using multiple floats will enable you to identify discrete levels. Perhaps having 1/3, 2/3 and full. Depending on size and shape of tank a sight level gage may work. Although you would have to evaluate the effectiveness of the glass with...