{HEAD ~ The plunger} 214 therefore is moved to {TAIL ~ the left} by the spring 218 due to the resulting decrease of pressure drop across the orifice 228 
is moved to
{ HEAD ~ The plunger } 214 therefore is moved to { TAIL ~ the left } by the spring 218 due to the resulting decrease of pressure drop across the orifice 228
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH