Patent ID: 8522865

Claim:
An expansion coupling ( 210 ) with axial adjusting lengths adequate to compensate for variations between two points for adjusting and installing between the two points for high-pressure fluid flow in a fluid delivery system, the expansion coupling comprising: a master housing ( 216 ), comprising an inner master tube adapter ( 232 ) and a removable master housing joint ( 213 ) for affixing to a first point ( 236 ); an expansion sub primary screw ( 220 ) comprising double lead threads ( 226 ) for telescoping ( 227 ) and affixing the expansion sub primary screw ( 220 ) to the master housing ( 216 ) via internal threads ( 218 ) on the inner master tube adapter ( 232 ) in conjunction with external threads on the expansion sub primary screw ( 220 ), the expansion sub primary screw ( 220 ) comprising a hammer union ( 224 ) for affixing to a second point ( 238 ); and at least one wash barrier ( 228 , 222 ).