China High Quality Gear Operated Butterfly Valve Supplier – U Type Butterfly Valve,Cast Iron,Ductile Iron,Stainless Steel,Bronze,Alloy Steel,CI,DI, – UNIQUE

The Features

1, Correcting holes are made on flange according to standard, easy correcting during the installation. 2, Through-out bolt or one-side bolt used. Easy replacing and maintenance. 3, Shaft and disc connected by pin, torque screw or non pin, to achieve the opening and closing.