Combining simplicity of design with high quality manufacturing processes, the Pratt multiport plug valve provides high fl ow and large solids passage. A four inch multiport valve allows a 3” round solid to pass without compression. This fact permits smaller valves to be used without sacrificing flow integrity. In the unlikely event wear occurs between the plug face and the body seal, the plug can be adjusted externally with the turn of a wrench. The Pratt multiport valve is excellent for directional control applications. Drip tight shut-off is available by special request.