Port size is the main difference
Brass Ball Valves come in two port configurations. Full port and reduced port. The port is the opening through the ball. Example: a full port valve has a larger opening.
Full port design
A full port Brass Ball Valve has a bore equal to the pipe diameter. The flow path is unrestricted. There is no pressure drop. Example: a 1-inch valve with a 1-inch bore.
Reduced port design
A reduced port Brass Ball Valve has a smaller bore. The bore is smaller than the pipe diameter. This creates some flow restriction. Example: a 1-inch valve with a 3/4-inch bore.
Flow capacity comparison
Full port valves offer maximum flow. Reduced port valves have lower flow capacity. Full port is better for high-flow applications. Brass Ball Valves with full port minimize pressure loss.
Pressure drop comparison
Full port valves have minimal pressure drop. Reduced port valves create more pressure drop. This affects system efficiency. Brass Ball Valves with full port are more efficient.
Size and weight comparison
Full port valves are larger and heavier. Reduced port valves are more compact. This saves space and cost. Brass Ball Valves with reduced port are more economical.
Cost comparison
Full port valves are more expensive. Reduced port valves cost less. The difference is due to material and size. Brass Ball Valves with reduced port are budget-friendly.
Example: residential water main
A home uses a full port Brass Ball Valve for the main water line. The valve provides unrestricted flow. Example: maximum water pressure.
Example: industrial process line
A factory uses a reduced port Brass Ball Valve for a process line. The valve controls flow effectively. Example: a cost-effective solution.
Example: HVAC system
An HVAC system uses a full port Brass Ball Valve. The valve minimizes pressure drop. Example: efficient system performance.
When to use full port
Use full port for high-flow applications. Use it where pressure drop is critical. Use it for pigs or cleaning. Brass Ball Valves with full port are ideal for these uses.
When to use reduced port
Use reduced port for cost savings. Use it where flow is not critical. Use it for simple on-off control. Brass Ball Valves with reduced port are practical.
Final difference summary
Brass Ball Valves come in full port and reduced port. Full port has a larger bore and unrestricted flow. Reduced port has a smaller bore and some restriction. Full port is better for high flow. Reduced port is more compact and economical. Brass Ball Valves should be selected based on application needs. Example: choose full port for flow; reduced port for cost.