Viton Sump Gasket for Belly Valves Emergency Valve. Ensure a secure and leak-proof seal in your fuel system with the 15266VT 4″ Sump Gasket Viton by Werts Welding. This high-quality Viton sump gasket is specifically designed for use with belly valves and emergency valves, providing exceptional resistance to fuels, oils, and high temperatures. Viton material is renowned for its durability and ability to maintain integrity in harsh chemical environments, making it an ideal choice for fuel storage and dispensing systems. The 4-inch size ensures a perfect fit for standard belly and emergency valves, offering a reliable seal that helps prevent leaks and contamination. Ideal for service stations, fueling depots, and industrial applications where fuel integrity is paramount, this Viton sump gasket is an essential component for maintaining the safety and efficiency of your operations. Find this indispensable sealing solution at J&N Supply Co in the Dallas-Fort Worth metroplex.