3/4" Tri Clover Compatible Ball Valve.  Ball valves tend to do a better job at controlling flow rates than Tri Clover Compatible butterfly valves in a brewery application.  We usually recommend butterfly valves at vessel outlets and on fermenters and Tri Clover Compatible ball valves on pump outlets and vessle returns like mash tun sparge and vorlauf returns. This ball valve is a 2-piece economy style valve.  It can be taken apart for cleaning and should be treated as a threaded ball valve and cleaned after each use. .625" bore and .984" across the flange. 

Note that this is a properly sized 3/4" valve on the .984" flange and is not compatible with other 3/4" TC fittings being sold on the market that are on the 1"/1.5" flange measuring 1.984" across.