MDE Differential Pressure Gauge

The SIKA differential pressure gauge type MDE with two bourdon tubes are instruments for measuring two different pressures and an indication of the differential pressure. The SIKA MDE pressure gauge is used in heating systems (supply and return lines) and filter systems.

Differential pressure gauges should be selected with a full-scale value that is at least as large as the maximum pressure occurring in the system. The pressure gauges can be operated at pressures up to the maximum scale pressure, but they cannot withstand overpressure. To ensure good readability of the differential pressure, the differential pressure should not be less than about 20% of the full-scale value. If the differential pressure is significantly lower, other types of devices, such as diaphragm pressure gauges or models with two bourdon tubes and a single pointer, are more suitable.