The UL Listed OS&Y Gate Valve ( HGO Series) commonly used to control water flow to fire sprinkler systems is known as outside stem and yoke or outside screw and yoke. OS&Y Gate Valve operate by opening and closing via a gate, which lowers into or rises out of the valve. Hants is a sub-brand of us, supplying high quality valves & fittings for different industries. Features Coated with Epoxy, making it durable to withstand the test of time. Low cost and easy maintenance. Epoxy Coated interior and exterior surfaces.
