A relief valve opens to release excess pressure when the pressure is too high to protect the vessel or other equipment from overpressurization. A relief valve is like a safety valve in that it is for liquids only. A safety valve is for gases only.
Example Usage of Relief
NWORevolution: #NWONews - After a Decade of Global Cooling, We Should Sigh With Relief at Copenhagen's Failure http://tinyurl.com/ybnwkc7
SwagSoVicious08: @SoulfulRobot wadeva mr. sumtimes its all bout Relief. lmao
giboteodoro: RT @ANCALERTS: Albay Gov. Salceda declares all towns affected by Mayon 'open cities' for Relief operations. People can directly give aid ...
