If ball valves don't hold up well and are difficult to repair/replace, try globe valves. Globe valves can almost always be taken apart and rebuilt without removal from the line. Gate valves are typically used in large diameter applications, they have almost no flow resistance when wide open, but don't throttle very well, and usually don't seal tight when closed. Ball valves have very little flow resistance when open, don't hold up well when used for throttling and are practical mostly in smaller diameter applications. Globe valves are intended for throttling but have relatively more flow resistance when wide open. Most older houses I've lived in used globe valve for line isolation. Ned Kleinhenz _______________________________________ http://www.okiebenz.com
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