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- pumping liquids against vacuum - Pump engineering - Eng-Tips
What are the most recommended pump types for discharging liquid from a liquid knockout tank that is under vacuum? Example, a knockout tank under 27 quot; Hg vacuum, and a pump is desired to operate @ 10 psig discharge pressure while the tank remains under vacuum
- Pumping out of a vacuum: Will a pump do it? - Physics Forums
I've a hot-liquid filled tank (approx 5000 Litres) at ground level within which there's a considerably good vacuum Approx 100 mmHg abs pressure Is it possible to pump out liquid from this tank using a pump (any kind) without destroying the vacuum in the tank? What kind of pump would work best?
- Fuel system drawing a vacuum - SteelSoldiers
Sounds like partial vacuum in the tank The lift pump provides a pressure of around 5 PSI gauge referenced to atmospheric pressure by spring force on a Viton-fabric diaphragm about 3 inches in diameter That is an area of 7 square inches, the spring force is about 35 pounds
- Centrifugal pump potentially pulling a vacuum? : r AskEngineers - Reddit
The pump is going to suck the liquid level down in the vessel, which will potentially create a negative pressure in the headspace and the greater atmospheric pressure will push against the exterior surface area of the tank (potentially imploding the tank depending on the vacuum rating)
- Simulate vacuum pressure on a tank - Autodesk Community
Applying an outside pressure on the walls of the tank in the simulation effectively replicates the internal suction force because it's the pressure differential that matters Fusion 360 can handle this through a Static Stress Simulation with external pressure applied to the tank walls
- CHAPTER 3: An Introduction to Vacuum Systems - Geneseo
Chapter 3 describes the general components needed to construct a rough vacuum system: a vacuum chamber, vacuum pump, vacuum gauge(s), valve(s), and fittings The amount of gas from all sources to be removed from the system is defined as the gas load
- Vacuum Tank 101 | LMT
Rotary vane vacuum pumps create a vacuum in the tank The pump uses 2 to 8 replaceable sliding vanes to move the air The vanes require constant lubrication using a reservoir and regulated delivery system
- Tank Considerations: Pressure vs Vacuum. - Engineers Edge
The material vendor recommends using a 8 CFM pump for this application The issue is one of having sufficient capacity to draw enough vacuum quickly enough to degass the materials within their working time, ie: before the materials set up such that they no longer flow adequately
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