Bronze lift type check valves with bronze disc and seat, pressure rating PN 16, straight and angle pattern, flat faced flanges as per DIN PN 16 and bolted bonnet. Only suitable for installation in horizontal pipelines. These check valves offer very good resistance to the corrosive action of seawater, fresh water and waste water. Application area : aboard ships but also in installations where corrosion (in- or external) is undesirable.