Differential pressure gauges work on the principle that the deflection of the sensing element depends on the difference of the pressure on either side of the element. The difference of pressure results in the deflection of the element, which is transferred to the pointer mechanism. These gauges come with diaphragm sensing elements. Performance is as per IS 3624-1987 and as per EN-837-1. They are available in stainless steel casing to
suit most environments and field applications.