Installation of the 2-Port Isolation Valve (2PIV) provides quick and easy refrigerant leak detection in evaporators, condenser coils, and refrigerant line sets. According to the manufacturer, faster ...

A new dielectric isolation valve kit is now available. Easy-to-install kit components ensure pump isolation and easy removal of circulators for replacement or service work by eliminating the need to ...

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DUNKIRK — The Dunkirk Department of Public Works has installed isolation valves in a water main that broke Aug. 31, to stop future breaks from fouling up the entire system. A cast iron main on Lake ...