About: http://webisa.webdatacommons.org/183358702

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	Control of pressurized fluid flow is regulated by means of a manually operated spring-to-close valve 5, mounted to valve frame 3 by locking nut 30, or other suitable means, which is threaded to valve body 5.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com