ScottyUK,
Thanks for the info. I have one on order with a control panel. They should be here tomorrow.
OperaHouse,
Thanks for the reply. No, they haven't been abandoned, still in frequent use in Aerospace applications, as well as others. I will save your 2nd post and build that circuit as a...
Hi,
I'm looking for a power control circuit (supply) to drive a -8mA to +8mA electro-hydraulic servo. Previously, I've used a power supply set to limit current to 8mA, with a reversing switch to reverse polarity, but this seems so Flintstones. I've been looking for a way to have a single dial...
Adrian,
My post was not clear. The EPR seal pumps are available, but the vendor couldn't find a pump that met the 5Ksi and flow requirements through their suppliers. Since this is a test stand, efficiency is not a design criteria. We currently have a test stand that runs Skydrol that I built...
Hi,
I'm a Mech Eng. with limited hydraulic experience and I'm specifying a hydraulic system for use as a test stand.
Application details:
Fluid: Skydrol (Phosphate Ester) = EPR seals
Max Pressure/Flow: 5000 psig at low flow (<1 gpm)
Normal Pressure/Flow: 3000 psig at 5+ gpm (intermittent)...
I tend to look at this situation in the form of: The columns are designed to support a load, and within some damage tolerance will continue to do so. However, you now have introduced some damage, which is some percentage of the total damage it can have before the column fails. Now that it is...
