ANSI Gate Valve classification

A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restric*tion is desired. According to the different standard, we can divide gate valves into JIS Gate Valve, GB Gate Valve, ANSI Gate Valve, and DIN Gate Valve and so on. Because all of them are one kind of gate valve, so they contain all the features of gate valve.
 Would it be wise to replace all of the gate valves with ball valves in a house?
Most older houses have gate valves (the old style where you twist several times to open and close) rather than the newer ball valves that turn water on and off in a quarter turn. Gate valves lose their ability to cut off water supply completely, they leak, and even when fully open they have a water flow loss. Ball valves solve all of these problems, making gate valves obsolete.
In my opinion, it would be the plumbing equivalent of changing electric fuse boxes to circuit breaker panels.

From the originalgatevalve