PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In most cases, the flanges are the weakest point - and this should be the guiding design factor with regards to allowable pressure in that specific piping class(ification).A pipe class is a document (normally prepared by an operating or engineering company) for use within its confines and which contains the definition of pipe and all related components that are to be used under a specific pressure
http://www.w3.org/ns/prov#wasQuotedFrom
  • cheresources.com