Nine reasons why your pump runs slow Excessive heat/low fluid viscosity. A system running excessively hot can affect pump performance. Fluid temperatures that are above normal will increase internal leakage everywhere in a system, and there are numerous causes. These can relatively simple, such as high ambient temperatures or radiant heat from furnaces or foundry equipment.

LIHENG at PTC SHANGHAI 2021 We are happy to announce our presence at PTC SHANGHAI from October 26 to 29, 2021, PTC SHANGHAI is the most important hydraulics fair in China, even in the world which will also be a special fair under the epidemic prevention and control this year. Where to find us and what we will do