Experimental Study on Cavitation in Water Hydraulic Poppet Valve.

Cavitation is a common phenomenon in many valves used in water hydraulic systems as well as in oil hydraulic systems. In this paper, the cavitation phenomenon in water hydraulic poppet valve is fundamentally investigated experimentally with a half cut test model. The cavitation appearance processes, the boundary of inception, the effects of cavitation on the characteristics of flow rate and pressure distributions are investigated. The results are discussed in comparison with the results of the similar tests with oil hydraulic valve in the former study.