SKILL ACCOMPLISHMENT TEST

for $8832$ INTERMEDIATE HYDRAULICS

LAP $4$: HYDRAULIC CHECK VALVE APPLICATIONS

$($s$)9$

Student Name: $q,$ Justen Strawb

Start Date:

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PROBLEM IH$-4-3$

Calculate the pilot pressure required to open the POC valve shown in the figure given the following information.

Load: $15,000$ ites $66723$ N

Cylinder areas:

Cap Are $=6$ in $238\mathrm{.}7c{m}^2$

Ansular Area $=4i\frac{n^1}{25\mathrm{.}8}c{m}^2$

Z: $45p\frac{s}{310}$kPa

$LP=q,($psi$/$KPa$)$

$CR=q,$

$PP=($psi$/$kPa$)$