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The Polyconn PCDBV series Duratec nickel-plated brass ball valve has National Pipe Taper (NPT) male threads on both ends. This valve body is made of nickel-plated brass for higher corrosion resistance. This valve has a stainless steel and vinyl sleeve lever handle for manual on/off control. Duratec valve is designed for leak-proof and cost-effective install and maintenance. This valve has male NPT threads for connecting to female threaded pipes, creating a tighter seal than straight threads. This valve meets American Society for Testing and Materials (ASTM) F1974 and American Society of Mechanical Engineers (ASME) B21.3 and 31.9.
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. Flow 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 of 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 is 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 ball's position (open or closed) for manual operation. They are primarily used in air, gas, liquid, and steam applications.
Polyconn manufactures high-quality pneumatic hoses, pneumatic-hose fittings, and pneumatic components. The company, founded in 1980 and headquartered in Minneapolis, MN.
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