Keywords: Blown expansion joint.jpg These are bellows type en expansion joints taken from a medium-pressure 150-300 en psi steam line They have been destroyed due to steam-generated en water hammer probably in excess of 5000 psi I have edited the image to remove irrelevant background stuff en wikipedia UNiesert CommonsHelper 2008-03-29 Kajmal wikipedia en Kajmal en Original upload log page en wikipedia Blown_expansion_joint jpg 2008-03-29 03 07 Kajmal 640×480× 144966 bytes <nowiki>This is a bellows type expansion joint taken from a medium-pressure 150-300 psi steam line It has been destroyed due to steam-generated water hammer probably in excess of 5000 psi I have edited the image to remove irrelevant background </nowiki> Damages caused by water hammer Irrigation Plumbing |