The double check valve with hydraulic unlocking, twin type 2SV, available in nominal sizes 6 and 10, series 6X, supports pressures up to 315 bar. It offers a flow rate of up to 60 L/min for TN 6 and 120 L/min for TN 10. Designed for direct mounting, it allows leak-free blocking of one or two consumer connections and is suitable for in-line installation, with 4 opening pressure options.