Direct Acting Relief Valve

This style of relief valve has only one poppet and one spring. It might seem nice and simple, but there is a downside to that simplicity. Watch the video to find out more, then head to www.lunchboxse... to register for a whole ton of learning media like this.
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[@brycebott6798]

Loving your videos! Studying for my pilots licence and this has been a huge help. So thank you. BUT i must ask why do you have the low tone droning in the background audio? XD

[@najinkunnath6009]

What does the dotted line in the relief valve symbol represent ??

[@Alvgaar]

It represents pressure line to poppet side. The dotted line is on the opposite side of the spring symbol, which means they are working against each other. Oil working on the poppet will counteract the springs extentional forces and then contract it, allowing pressure to escape to tank.

[@samuelsimango120]

Which program has been used to simulate this?
Thanks

[@rajkumarrajasekar7986]

Super, which software are you using for simulation

[@jamieyeomans3803]

I have a conundrum. My excavator functions fine when first starting to work but after about a half hour I lose speed and power. Its believed to be the Pilot relief valve but why and would the accumulator have anything to do with my issue.

[@jeongpilkim4968]

main controlvalve error

[@michaelcostello6991]

Great explanation.

[@mohamedsherif9573]

what is the software used to make this video

[@hishamibrahim757]

what are the parameters that affect on the override pressure. thanks

[@voitech8512]

great video and explanation
thanks

[@user-bu3oc2gv7m]

thanks, helpful video!