About: http://webisa.webdatacommons.org/75149007

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	Check valves should be used whenever there is a need to prevent back-flow of process media.
http://www.w3.org/ns/prov#wasQuotedFrom	ipexinc.com