The seal ring is situated in a seal ring groove located in {HEAD ~ the sleeve} of {TAIL ~ the rotary valve assembly} with a clearance on each axial side of the seal ring 
The seal ring is situated in a seal ring groove located in { HEAD ~ the sleeve } of { TAIL ~ the rotary valve assembly } with a clearance on each axial side of the seal ring
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH