This is a new slide valve arrangement, it includes {HEAD ~ a housing} having {TAIL ~ a longitudinal axis} and a disc valve or gate movable by external hydraulic or mechanical actuator 
having
This is a new slide valve arrangement , it includes { HEAD ~ a housing } having { TAIL ~ a longitudinal axis } and a disc valve or gate movable by external hydraulic or mechanical actuator
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH