About: http://webisa.webdatacommons.org/183614070

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	However, there is a seal between the stem and atmosphere with a balanced valve; as such, a potential for a leak is possible.
http://www.w3.org/ns/prov#wasQuotedFrom	eng-tips.com