Cast iron life type check valves with zinc-free bronze disc and seat, spring loaded disc, pressure rating PN 16, straight and angle pattern with bolted bonnet, flanges acc. to DIN PN 16. Suitable for horizontal and vertical (upward flow) installation. Application area: maritime use in particular, due to the zinc free bronze trim. Application: in particular for cold and warm (sea) water, air, gases, other neutral media.