Type K Copper Color
Green
Type L Copper Color
Blue
Type M Copper Color
Red
DWV Copper Color
Yellow
ACR Copper Color
Blue
A valve with a wedge-shaped or tapered metal disc that fits into a smooth-ground surface or seat with the same shape, allowing a straight-line flow with little obstruction. ______ valves are a good choice for lines that will remain either completely open or completely closed most of the time.
Gate valve —
A valve that controls the flow of liquid with a movable spindle, which descends to restrict flow through the valve opening. Because a _____ valve is reliable and easy to repair, it is often used in water supply lines inside buildings.
Globe valve —
A valve that consists of a ball with a hole bored through its diameter, mounted on a spindle. When the ball valve is closed, the hole is at 90 degrees to the valve body so no flow can take place. When the valve is turned a quarter turn or opened completely, water flows through the hole.
Ball valve —
A valve that is opened or closed by raising or lowering a horizontal disc using a threaded stem. An elastomeric (or rubberized) washer on the end of the stem seals the valve seat, closing off water flow. This valve is usually used for draining and freeze protection aboveground.
Compression, stop, and waste valve —
A valve that controls the flow of liquids or gases between a building and supply source. A stop valve is also called a ground-key valve.
Stop valve —
