Suitable up to 6,000 psi water, oil, or gas at ambient temperature. Full port, 2pc welded body, locking handle, 304SS ball, delrin seats, and an enlarged bottom-loaded blow-out proof stem. This valve has a vented ball that equalizes pressure between body cavity and the flow stream to prevent seat damage due to thermal cycling. Complies with ANSI B16.34 & EN 12516-1.