... 1/2 to 4 2, Surface: nickel, brass, chrome 3, Handle: long steel hanlde 4, Material:brass Brass ball ... /4”, 1-1/2”, 2”, 2-1/2”, 3”, 4”3, Surface Brass finish, nickel finish, chrome finish4, Working temperature ... carried out using pressurised air in a water bath.3. Ball valve handle must be strong enough to ... achieved through a 90 degree turn of the handle.5.The valve ends near the threaded sides of the ...