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| Excuse the over simplification but that is how my mind works most days.
Static pressure is hitting the end of stroke. No flow. All hoses will be the same regardless of length or size. Think water tower, water pipe 12 in diameter beside a drinking straw coming down from the tower. Both would have the same static pressure.
Flow will change with size of hose as well as with length of hose. Same water tower it is obvious that flow would be drastically different between the 2.
Residual pressure and flow is pressure and flow in line when the line is flowing product. This pressure and flow will drop from both size and length of hose but will become static pressure once stroke is reached. Opening a faucet would have very little effect on the big 12 in pipe but would drop the residual on the straw to 0.
Residual flow and pressure is the reason some implements do not play well when operating 2 functions at the same time.
So for most cylinders on most equipment it makes little difference but with big cylinders or motors, size is very important. Smaller hose will also create restriction which will result in heat in high flow applications. | |
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Hydraulic line diameter
