Pipe size and diameter connecting hydraulic pistons

In summary, the conversation discusses two hydraulic systems with different pipe sizes. Pascal's law states that the force will be transmitted the same, but the narrower pipe in System B may cause slower movement. In practice, a narrower pipe will offer more resistance and slow down movement, while in theory there would be no difference. The conversation also mentions the use of hydraulics for power and pneumatics for speed.
  • #1
joejoekelly1
4
0
Hi everyone,

In the attached diagram there are two hydraulic systems. The cylinder areas for each system are the same. The only thing that is different between the two systems is the pipe joining them, system B having a much smaller ID.

Pascals law states that these two systems would act the same and that the force would be transmitted in the same way. I agree with this.

My question is, would the downward moving piston in system A move faster than the downward moving piston in system B, because system A has a much wider ID pipe joining the two cylinders? In other words both systems would transmit the same force but would system A transmit it faster?

Thank you.
 

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  • #2
In practice, a narrower pipe will offer more resistance to flow, will waste energy and will slow down the movement. In theory, and the absence of viscosity, there would be no difference.

A narrow pipe will choke the flow because the flow becomes turbulent.
Hydraulics is used for power, pneumatics is used for speed.
 

1. What is the purpose of pipe size and diameter in connecting hydraulic pistons?

Pipe size and diameter play a crucial role in ensuring proper functioning of hydraulic pistons. The pipes act as conduits for the hydraulic fluid, which is used to transmit force and motion to the pistons. The size and diameter of the pipes determine the amount of fluid that can flow through them, which in turn affects the force and speed of the pistons.

2. How do I determine the appropriate pipe size for my hydraulic piston system?

The pipe size for a hydraulic piston system is determined by the required flow rate and pressure. Flow rate is the amount of fluid needed to move the piston at a desired speed, while pressure is the force exerted on the piston. These factors, along with the length of the pipes and the type of fluid used, can help determine the appropriate pipe size and diameter for your system.

3. What happens if the pipe size is too small for my hydraulic piston system?

If the pipe size is too small, it can cause flow restrictions and increase the pressure in the system. This can lead to decreased efficiency, slower piston movement, and potential damage to the system. It is important to ensure that the pipe size is suitable for the required flow rate and pressure to prevent these issues.

4. Can different pipe sizes be used in the same hydraulic piston system?

Yes, it is possible to use different pipe sizes in the same hydraulic piston system. However, it is important to ensure that the pipes are properly connected and the flow rates and pressures are balanced to prevent any issues with the system. It is recommended to consult with a hydraulic engineer for guidance on using different pipe sizes in a system.

5. Are there any standards or guidelines for selecting pipe size and diameter in hydraulic piston systems?

Yes, there are industry standards and guidelines for selecting pipe size and diameter in hydraulic piston systems. These standards take into account various factors such as flow rate, pressure, fluid type, and safety considerations to ensure optimal performance and efficiency of the system. It is important to follow these standards when designing a hydraulic piston system to ensure its proper functioning.

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