Fluid flow control valve

A two part valve comprising a valve body and a manually operable, unitary valve member including an insert portion and an integral retaining portion, said insert portion rotatable in the valve body between open and closed positions in which such flow is controlled, said insert portion being housed in a through aperture of the valve body, a leading end of the insert portion being insertable into said aperture from one end thereof and retainable in an operational and sealing disposition therewithin by said retaining means wherein the retaining means comprises a bridging portion on which said manual operation is performed, and extending integrally between the insert portion and the retaining portion externally of the valve body, the retaining portion interconnecting the leading end of the insert portion to resist relative rotation of the leading end and the retaining portion, and preventing withdrawal of the insert portion out of the aperture in the valve body.