Keystone Butterfly Valve Factory – Wafer Butterfly Valve,Lug type,DI,CI,Ductile Iron,Cast Iron – UNIQUE

The Features

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