About: http://webisa.webdatacommons.org/128727893

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Because of the flat surfaces, any small particle in the flow stream such as sand may prevent proper contact of the mating surfaces, thereby creating an inherent potential for leakage.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com