Experimental Study on Tribological and Leakage Characteristics of a Rotating Spring-Energized Seal under High and Low Temperature

A spring-energized seal, whose PTFE plastic shell has excellent self-lubrication and a low temperature stability, is used widely in liquid fuel valves’ rotating end-face seals. However, practical application, larger effect on not only the physical tribological properties of materials, but also leakage performance rings. Thus, high sealing test seal that applies to an engine was carried out. In this paper, characteristics, friction torque wear characteristics ring under different temperatures were studied. The at less than normal temperature, could effectively reduce amount material. order study influence filled with graphite, PTFE-2 results showed 27.8% coefficient three times when −45 °C.