All wetted materials are from stainless steel as a standard. For applications with special requirements on the wetted parts, a version with Monel is available. By using a diaphragm measuring system, the model DA differential pressure switch is extremely robust and guarantees optimal operating characteristics and the highest measuring performances, with repeatability lower than 1 % of span. The process connection with a centre distance of 54 mm lower mount allows an easy and comfortable mounting of a standard valve manifold.