5hp Sihi pump was purchased used many years ago without a manual.
Can anyone share some information?
We are achieving 24 and even 25 inches of mercury.
Is this vacuum level ok for the pump?
We are concerned about overloading the pump.
The vacuum relief valve is a weighted ball which dances at 24 and 25 inches of vacuum.
Can someone recommend a smoother, perhaps a spring loaded vacuum relief valve.
This is a liquid ring water cooled vacuum pump.
Thanks in advance from Lanark Co Ontario.
Richard