Metric sizes for international use
Brass Ball Valves are available in metric sizes. Common sizes include 15mm, 22mm, and 28mm. Larger sizes go up to 54mm. Example: a 15mm valve for a household water line.
Imperial sizes for North America
In North America, imperial sizes are common. Standard sizes include 1/2 inch, 3/4 inch, and 1 inch. Larger sizes go up to 2 inches. Brass Ball Valves are available in imperial sizes.
Nominal pipe size (NPS)
Brass Ball Valves are sized by nominal pipe size. NPS refers to the pipe's inner diameter. Common NPS sizes are 1/4 to 4 inches. Example: a 1-inch NPS valve.
Pressure ratings: 600 WOG
Brass Ball Valves typically have a 600 WOG rating. WOG stands for Water, Oil, and Gas. 600 WOG means 600 psi for these media. Example: a valve for a 600 psi water line.
Pressure rating: 150 SWP
Some valves also have a SWP rating. SWP stands for Steam Working Pressure. 150 SWP means 150 psi for steam. Brass Ball Valves may have both ratings.
Temperature ratings
Brass Ball Valves have temperature limits. Standard valves handle up to 180°F (82°C). High-temperature valves handle up to 250°F (121°C). Example: a valve for a hot water system.
Example: residential plumbing
A home uses a 1/2-inch Brass Ball Valve. The valve is rated for 600 WOG. It handles household water pressure. Example: a reliable shut-off valve.
Example: commercial plumbing
A commercial building uses a 1-inch Brass Ball Valve. The valve is rated for 600 WOG. It handles higher flow rates. Example: an efficient zone control valve.
Example: industrial application
A factory uses a 2-inch Brass Ball Valve. The valve is rated for 600 WOG. It handles industrial fluids. Example: a durable industrial valve.
Threaded and solder ends
Brass Ball Valves come with different end connections. Threaded ends are common. Solder ends are also available. Example: a threaded valve for easy installation.
Standards and certifications
Brass Ball Valves meet various standards. These include MSS SP-110 and ANSI B16.34. They are certified for different applications. Example: a valve meeting MSS SP-110.
Final sizes and ratings summary
Brass Ball Valves come in metric and imperial sizes. Common sizes are 15mm to 54mm. Imperial sizes are 1/2 inch to 2 inches. Pressure ratings are 600 WOG and 150 SWP. Temperature ratings vary by model. Brass Ball Valves are available for many applications. Example: choose the right size and rating for your system.