These ball valves are suitable for pressures up to 6,000 psi water, oil, or gas (at ambient temperature). They feature a 2 piece welded body, locking handle, with 304SS ball and delrin seats, enlarged bottom-loaded blow-out proof stem and FNPT ends. This valve has a vented ball that equalizes pressure between body cavity and the flow stream to prevent seat damage due to thermal cycling. This valve complies with ANSI B16.34 & EN 12516-1 standards.