D-SERIES PRESSURE SWITCHES
STURDY, ROBUST AND PRECISE
HIGH STATIC PRESSURE
WIDE PRESSURE RANGES
CHOICE OF DIAPHRAGM MATERIAL
D-Series Differential Pressure Switches are designed for low or high differential pressure ranges from
12.5 to 250 mm H2O to 4.2 to 42 Kg/Cm2 (Table 'C'). The low range differential pressure switches are
diaphragm actuated where process pressure acts on both sides of a diaphram and ensures true response. The
high range Differential pressure switch consists of two identical calibrated piston which are sealed from the
process by diaphragms.
The rugged diaphragm sealed piston actuator provides setpoint repeatability of 0.5%. The enclosure is
die-cast Aluminium and is available in weatherproof and flameproof versions (Table 'A'). A wide variety
of SPDT (Single) and 2xSPDT (Dual) snap action switches are available to meet many electrical load
requirements (table 'B').
Applications Include : Pumps, Compressore, Heat, Exchangers, Boilers, Marine Equipment, Lube Systems,
Filters, Degreasers, Evaporators, Heat Recovery System, Grouns Support Equipments, Textile Machinery,
Heating & Air Conditioning Systems, Food Processing, Heat Tracing, Fire Fighting, Bottling, Bulk Conveying,
Packing & Filling, Furnace, Blowers and Air Dryers, etc.