Unlike many of the valves used in competing emissions control systems, the GV1 was specifically designed for small reciprocating engines using gaseous fuels. It is not a modified pressure regulator, a biasing restrictor, or a valve borrowed from a different market sector or manufacturer. The GV1 was completely designed by Continental Controls Corporation for a specific application. Every valve is manufactured at our center in San Diego, California. The following are some of the key mechanical design features that contribute to the superior performance of the GV1.