Slide gates / penstocks are used to isolate flow in and out of a conduit and are provided with sealing arrangement on 4 sides. These are offered in varied designs and various materials of construction such as Cast Iron / Ductile cast iron / Alloy cast iron with Nickle / Stainless steel / Super Duplex stainless steel / Aluminum / HDPE / FRP / Composite etc to suit the intended application. These can be provided with manual, electric , pneumatic or hydraulic operating systems.