Product Description

This Smith-Cooper International 301 series brass boiler drain valve has a butterfly handle, a male National Pipe Taper (NPT) thread inlet connection, and is used to control flow (throttling) while draining a tank. The valve body and seat are constructed of brass for higher corrosion resistance than steel, its inlet connection is male NPT for connecting to a female threaded fitting, its outlet connection is male hose thread, and its elbow shape helps liquid drain away from the valve. A manually operated butterfly handle rotates the inside chrome plated brass ball mechanism, which closes with a quarter turn to regulate the flow between the connected pipe and hose, and an O-ring reduces the risk of leakage around the valve stem. The valves maximum pressure is 125 pounds per square inch (gauge) (psig) for water, oil, and gas (WOG). This rising stem boiler drain valve is a type of ball valve and is suitable for use in various tank draining systems.Ball valves use a spherical disc to control the flow between pipes, tubes, or hoses. Flow is allowed when the hole that pierces the ball-shaped disc is in line with the inlet and outlet of the valve and is blocked when the ball is horizontally swiveled 90 degrees, so that the hole of the ball is perpendicular to the opening of the valve. Ball valves can be referred to as full port or reduced port (also known as regular or standard port) depending on the inner diameter or the valve. A ball valve is full port if the hole of the ball is the same size as the inner diameter of the connecting pipeline (resulting in lower friction) and termed reduced port if the hole of the valve is one pipe size smaller than the pipe, resulting in less flow through the valve than through the shaft of the pipe. Ball valves may have a handle or lever that aligns with the balls position (open or closed) for manual operation. They are primarily used in air, gas, liquid, and steam applications.Smith-Cooper International distributes pipe, fittings, and valves under its SCI trademark and manufactures valves under the Sharpe brand. The company, founded in 1993 and headquartered in Commerce, CA, meets International Organization for Standardization (ISO) standard 9002.