(Gate valve) A valve with a circular-shaped closing element that fits securely over an opening through which water flows. A valve that utilizes a disc moving at a right angle to the flow to regulate the rate of flow. When a gate valve is fully opened, there is no obstruction to the flow.
(Gate valve) A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid.
(gate valve) A type of valve in which the closing element (gate) is a disc that moves across the stream, often in a groove or slot for support against pressure.
A valve with a sliding part that controls the extent of the aperture
Denotes a valve that has a bore (port) ID size that is equal to the ID size of the attached pipe, (see "Full Bore").
Night Fishing Under a Full Moon - Port Aransas, Texas
Camera Nikon D700
Exposure 18
Aperture f/3.5
Focal Length 24 mm
ISO Speed 200