{HEAD ~ A pair} of flanges 27, protrude centrally from opposed ends of cylindrical valve member 24b along cylindrical axis C thereof, perpendicular with {TAIL ~ the longitudinal axis} of reservoir 2 
{ HEAD ~ A pair } of flanges 27 , protrude centrally from opposed ends of cylindrical valve member 24b along cylindrical axis C thereof , perpendicular with { TAIL ~ the longitudinal axis } of reservoir 2
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH