The new GF Piping Systems 565 Butterfly Valve is built to optimize piping systems for a wide range of applications at a lower ...

Among the many flow control devices, Electric Butterfly Valves are a revolutionary innovation that improves automation and efficiency. They are engineered for smooth fluid regulation with accurate ...

Our factory production of butterfly valves, small size, light weight, flexible operation, Good regulatory opening and closing rapidly.Not only has a good seal, and fluid resistance. Valve body with ...

This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.

School of Electronic and Information Engineering, Southwest University, Chongqing 400715, P. R. China ...