Valve Arrangement

A valve arrangement (32) for controlling fluid flow comprising a valve housing (18) defining a chamber (28) and a conduit (24) wherein a seating region (26) is defined at a transition between the chamber (28) and the conduit (24), a valve member (34) engageable with the seating region (26) and a retaining member (44) received within the chamber (28). A stop member is also received within the chamber (28) and defines a first surface (57) engageable with the retaining member (44) and a second surface (52) which is spaced a predetermined distance from the valve member (34) when the first surface (47) is engaged with the retaining member (44) thereby to provide a means to limit the maximum travel of the valve member (34) away from the seating region (26).