Hydraulic Performance It is very important to know and understand the hydraulic performance specifications before purchasing a hydraulic power unit for your specific applications. The most common performance specifications are a low pressure shut-off, low surge, low temperature shut-off and a fast recovery time. The performance specifications are set by an APR rating, and this refers to the ability of the unit to maintain a constant pressure once the shut-off is applied. If the shut-off pressure is too high then the fluid pressure will drop below the desired operating level.
Hydraulic Performance Testing One of the most effective ways to test a hydraulic power unit, like the ones from https://www.hydraproducts.co.uk/Hydraulic-Power-Units is with a load testing system. With a load testing system you can set a maximum pressure and speed for the hydraulic power unit, and when that pressure and speed are reached then the system is considered to have performed adequately. Hydraulic pressure testing must be done using high-quality equipment that is able to record and account for every measurement that is made, including spikes and drops during operation. Hydraulic fluid pressure testing should be done in good weather, with plenty of time for the test to reach the desired pressure and speed for each individual piece of equipment.
Hydraulic Switching Before you buy a new or used hydraulic power unit, you should take the time to familiarize yourself with the hydraulic switching system. The switching system is designed to control the speed and the output of the pump. If you are unfamiliar with the different parts of a switch then you should consult a professional hydraulic fluid company. If you have questions about the operation of your you then you should contact the manufacturer directly to ensure that you understand how your hpu works. If you are still not sure then it is highly recommended that you contact a hydraulic fluid company before you make any purchase.