Excavators have a variety of filters and filter elements. There are many types of filters and filter elements on the market. How to choose the filter and filter element suitable for excavators is very important. This article introduces the matters needing attention when selecting filter or filter element. Since different models and brands of excavators have different requirements, this article is for reference only.
1) The performance of diesel filter has grade code according to ISO standard. In addition to the performance test according to SAE standard, the air filter element must also be subject to bench test to meet the requirements of the original air intake resistance of the rated air intake of the engine.
2) The qualified oil filter must meet the original design of engine cylinder pressure, oil temperature, flow, viscosity and equipment service conditions. And the comprehensive balance of core quality should be considered.
3) The hydraulic oil filter element is marked with the nominal filtration accuracy on the product sample or nameplate of the manufacturer. Not absolute filtering accuracy. Only those determined by the general test β Value can represent the filtering capacity of the filter element.
4) The hydraulic oil filter element should also meet the requirements of pressure loss. That is, the total differential pressure of the high-pressure filter is less than 0.1pma, and the total differential pressure of the oil return filter is less than 0.05Mpa. To ensure the optimization of flow and filter life.
5) When choosing filter or filter element, you can choose original parts or brands with good reputation and high popularity. It should be noted that the selected filter element should be accepted to check whether it meets its required performance indicators.
