ONIS, a leading provider of industrial safety solutions, has developed the D3B (Double Block Bleed & Blind) system to eliminate human error in pipe operations. The D3B device is designed to provide ...

Remove the handle from the ball valve so you can assemble all the 3/4-inch fittings. Build a new drain valve with a 3/4-inch full-port brass ball valve with threaded ends, a 3-inch x 3/4-inch ...