Basic Hydraulic Principles

Hydraulic NRV
(Non-Return Valve)

NRVs (or non-return valves) are installed within hydraulic systems in order to prevent hydraulic fluid flowing in the opposite direction to which it is intended.


Hydraulic NRV

Operation of a non-return valve or any hydraulic component is easy to understand when using an interactive animation such as the one shown on the left, enabling pressure each side of the NRV to be controlled in order to demonstrate or observe the changing pressures and flows.



The NRV is part of our instructor pack for basic hydraulic principles, available for use in schools and colleges and includes interactive material to provide tutorials on all of the following:


Pascal's Law

A demonstration of Pascal's Law...

Hydraulic Pressure and Force

The relationship between hydraulic pressure and force...

Simple Hydraulic System

How a simple hydraulic system works...


Hydraulic Brakes

An example of a simple interactive hydraulic braking system...

Hydraulic Swash Plate Pump

How a hydraulic swash plate pump works...

Hydraulic NRV (non-return valve)

Operation of a hydraulic NRV (non-return valve)...



These and other similar classroom training products can be purchased online now by visiting our training products list.

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