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