Siemens Building Technologies
Siemens VGD40 line of double gas valves has expanded from 1.5 to 6 in. (38 to 150 mm). The VGD40 contains a patented double-seated design, which provides high flow rates. A 4-in. (100-mm) VGD40 effectively incorporating all control functions of a typical gas train is less than 14 in. (355 mm) long. It provides compact, versatile and complete gas-flow control and value.