Series D4 standard / D7 ATEX — heavy duty differential pressure switches

• Measuring range: +75 mbar...+42 bar • Adjustable set point • Fixed or adjustable hysteresis • Sturdy • Corrosive environment • High overpressure protection • ATEX version • Option of 2 simultaneous threshold contacts Chemical and petrochemical industry, water treatment, industrial equipment, paper mills. In an epoxy-coated aluminium housing, a single piston with a sealed double diaphragm operates an electrical contact. Rising or falling pressure moves a piston that makes the contact at the set value or position. The set point is adjusted with a nut inside the housing. This pressure switch offers many options: various diaphragm choices and several contact types. It is also offered in an ATEX version. Local mounting (standard), wall mounting or pipe mounting with a bracket. A diaphragm seal or oxygen degreasing can be fitted as an option.