<p>A flow regulator particularly for sub-sea chemical injection at low continuous rates includes a piston moveable in response to differential pressure and controlling via a lever connection an inlet valve. The differential pressure is balanced by a dual rate spring assembly which is positionally adjustable by means of a screw-threaded adjusting rod.</p>
申请公布号
NO20024455(D0)
申请公布日期
2002.09.18
申请号
NO20020004455
申请日期
2002.09.18
申请人
KVAERNER OILFIELD PRODUCTS LTD
发明人
KIRKMAN, DOUGLAS FREDERICK;TIBBITTS, MATTHEW HENRY