Here, you can find information about the differences between brass and copper valves. This will help you determine which material will work best for your application!
How To Tell The Difference Between Copper & Brass
What are the differences between brass valves and bronze valves?
Copper Alloy Material Code and Compositions for brass valves, brass fittings
How to tell the difference between copper and brass - Quora
DIFFERENCE BETWEEN COPPER, BRASS AND BRONZE - MAFCO- Fire Fighting Equipment Fire Hydrant Valves Fire Hose Nozzles Fire Hose Coupling Manufacture
1/2 Inch Push-Fit Full Port Ball Valve, 1/2 Inch Ball Valve for Push-Fit Water Shut Off with Disconnect Clip, Lead Free Brass Full Port Fit Valve for Pex Copper CPVC, Pack of
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Copper Manufacturers Suppliers
The Plumber's Choice 1/2 in. Full Port pushfit Ball Valve Water Shut Off Push to Connect PEX Copper CPVC Brass (2-Pack) 122UPBV - The Home Depot