Honeywell FEMA Pressure Switch – DCM / DNM

DCM / DNM series is a universal, industrial grade, heavy duty pressure switch for all corrosive, non-aggressive liquids, water, gases. It can be used in general mechanical engineering, printing machine industry, as well as in pneumatics and hydraulics, including effluent treatment, alcohol industry, manufacturing plant, automobiles etc.


Pressure Switch – Honeywell DCM / DNM

universal pressure switch can be used in general mechanical engineering and the printing machine industry, as well as in pneumatics and hydraulics. Thus, it can be used in effluent treatment plant, sea water application, chemicals, hydrocarbons, petrochemicals, STP, WTP etc.

Pressure connectionExternal thread G 1/2 (pressure gauge connection) according to DIN 16 288 and internal thread G 1/4 according to ISO 228 Part 1
Switching DeviceHousing (200) made of sea water resistant, diecast aluminium GD AI Si 12
Protection classIP 54, in vertical position
Pressure sensor materialsDNM025…DCM63Metal bellows: 1.4571; Sensor housing: 1.4104
DCM025 – DCM 1Metal bellows: Cu; Sensor housing: Cu + Ms
DCM4016 / DCM4025Diaphragm: Perbunan; Sensor housing: 1.4301
DCM1000Diaphragm: Perbunan; Sensor housing: Brass
Mounting positionVertically upright and horizontal. DCM4016 and 4025 vertically upright.
Ambient temp. at switching device–25…+70 °C, except: DCM4016, 4025, 1000: –15…+60 °C
Max. medium temperatureMaximum medium temperature at the pressure sensor must not exceed permitted ambient temperature at the switching device. Temperatures may reach 85°C for short periods). Higher medium temperatures are possible provided the above limit values for the switching device are ensured by suitable measures (e.g. siphon).
MountingDirectly on the pressure line (pressure gauge connection) or on a flat surface with two 4 mm Ø screws.
Switching pressureAdjustable from outside with screwdriver.
Switching differentialNot adjustable with DCM and types. Adjustable from outside with DCMV types
Contact arrangementSingle-pole changeover switch

Additional information




Honeywell, Buckert, FEMA


Liquids, Water, Chemical, Sea water, Gases