Sagacity is comprised of industry professionals with manufacturing, and measurement and controls experience across the process industries. Our team understands the nuances of interfacing current technology with older processing facilities in industries including food & beverage, pharmaceutical, water and waste, and oil and gas. As a recognized product and process technology champion, we now aim to share our industry experience with newer members of the industry entering the field, as well as the operators currently working with today's modern technology.
Thanks for this great video. I'm looking for valves working at 60Mpa, very small pipe lines( 1mm inner diameter), I want to control them automatically, maybe solenoid valve, but they seem to work at much lower pressure. Would you please come up with some recommendations? Thanks in advance!
I've worked on quite a few pilot valves and none of them are affected by downstream pressure. The pilot essentially works like a pressure switch an a solenoid. When the process pressure pressure reaches the set pressure it vents the top of the main to atmosphere which allows the main piston to open relieving the pressure. The pilot itself has no connection to downstream pressure so it can accurately open the main without any interference from changes on the vent side. You might see the diagram and think the downstream pressure could be connected to the top of the main piston but if you saw one in person the main piston is in a sealed tube with seals on the outside that prevent leakage from the downstream pressure to the pressure that keeps it sealed.
Hello, I have a question for my home assginment. Can bi-metal thermometers be used in aerospace industry, like for measuring the temperature of the fuel flow. Or for that task, thermocuple or gas-actuated thermometer would fit better?
Yes, bi-metals will work here, but please note they won’t last too long in high vibration environments. If you require an output it is probably best to use and RTD and transmitter. Bi-metals typically don’t have analog transmitters integrated with them.
