No resistance to flow = zero pressure

Here's another Flint Hydraulics Tech Tip: Resistance to flow can be caused by an obstruction in a line such as a small orifice or a partially closed valve. In fact, everything through which oil flows resists the flow to some extent. If a faucet is wide open, it offers no resistance to the flow from the pump, and pressure will read zero PSI on a gauge. (Note: There must be pressure present or the liquid would not move, but the pressure level is too low to register on a gauge.) Need help? Call our team of troubleshooters today at 901-794-4884 or email sales@flinthyd.com.

Relationship of force to pressure & area

Here’s another Flint Hydraulics Tech Tip: The source of pressure in a hydraulic system is resistance to flow caused by a load to be moved. The relationship of load weight (or force) to pressure is graphically represented in the Pressure Triangle, which describes the mathematical formulas used to solve for the variables:

F/p = A

F/A = p

p x A = F

“Force” (F) in these formulas is the weight of the load. Pressure (p) is directly proportional to load weight and inversely proportional to piston area (A).
Call our experienced team of hydraulic specialists today at 901-794-4884 or email sales@flinthyd.com.

Resistance to flow causes pressure

Here’s another Flint Hydraulics Tech Tip: What causes pressure in a hydraulic system? This is one of the least understood facts about hydraulics. The answer to the question is simple – resistance to flow causes pressure in a hydraulic system. Hydraulic pumps do not “pump” pressure; they create flow. When the flow from the pump encounters resistance, pressure results. Need help troubleshooting? Call our team of experienced troubleshooters today at 901-794-4884 or email sales@flinthyd.com.   

Hydraulic Oil Pressure

Here’s another Flint Hydraulics Tech Tip: It is useful to bear in mind that the pressure shown on a hydraulic gauge is a reflection of the amount of resistance the oil flow is encountering. If the pressure reading of a gauge were to suddenly double, the magnitude of the resistance to flow has doubled. Need help troubleshooting? Call our team of experienced Certified Fluid Power Specialists today at 901-794-4884 or visit http://www.flinthyd.com.