what will the press guage read 1

[moobe]

Hello all,
I am sorry I am a automation guy. Please answer me this question. THe attached image. If I am pump feeding from P1 what will the pressue tranducer at P1 read. Assume all the valve are not acutated. Will it read 0? ,

 

[akkamaan]

What make you think someone can give the answer since
1. Your image needs download and people are to lazy to follow through looking at image through downloading
2. Your image don't show anything about the pump and the primary part of the system

 

[moobe]

Sorry. Is the new image. OK.

 

[Stick.]

It looks to me like the transducer (I'm assuming at MP1) should read a fairly low pressure (probably not exactly zero but significantly below the system pressure). From what I can see, it looks like the fluid will get dumped to tank through the cartridge valve labeled "112-01 GN25". The pilot side of that valve appears to be connected to tank through the open center of the spool valve labeled "119-01 GN6". Assuming that is true, the only thing holding "112-01 GN25" closed is the internal spring so it will open up once some minimal pressure develops at the A port of that valve.