A poppet valve assembly is provided for use on a fuel tanker truck which enables the trucks driver to determine whether fuel is flowing through the valve assembly and whether {TAIL ~ fuel} is present in {HEAD ~ the valve assembly} 
A poppet valve assembly is provided for use on a fuel tanker truck which enables the trucks driver to determine whether fuel is flowing through the valve assembly and whether { TAIL ~ fuel } is present in { HEAD ~ the valve assembly }
OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD