About: http://webisa.webdatacommons.org/174809975

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	I am sure it will answer most if not all of your question.One of the most common types of controller used in hydronic systems is the triple acting aquastat.
http://www.w3.org/ns/prov#wasQuotedFrom	heatinghelp.com