Models DW, DW10

Differential pressure switch

Stainless steel version, IP 65

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Applications of the differential pressure switch

  • Differential pressure monitoring and direct switching of electrical loads
  • For gaseous, liquid, aggressive, highly viscous or contaminated media, as well as aggressive ambient conditions
  • Process industry: chemical, petrochemical, on- and off-shore oil & gas, technical gases, environmental technology, machine building and general plant construction, water treatment, pharmaceuticals
  • Pump monitoring and control / filter monitoring, level measurement in closed tanks

Special Features of the differential pressure switch

  • Case made of stainless steel
  • Ingress protection IP 65, NEMA 4
  • Ambient temperature -30 ... +85 °C
  • 1 or 2 independent switch points, high contact rating up to 15 A / AC 220 V
  • Working pressure (static pressure) up to 160 bar

Description of the differential pressure switch

WIKA's differential pressure switches have been developed especially for safety-critical applications. Manufactured to ISO 9001:2000 standards, our high-quality differential pressure switches help ensure reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and are fully tested post-production. 

All wetted parts materials are from stainless steel or Inconel 718, depending on the measuring range. Each differential pressure switch family is available in IP 65, Ex-ia or Ex-d versions (Ex-d see model DA, data sheet PV 35.43).

In order to ensure as flexible operation as possible, the differential pressure switches are equipped with micro switches, which make it possible to switch an electrical load of up to 15 A / AC 220 V directly.

For smaller contact ratings, such as for PLC applications, argon gas-filled micro switches with gold-plated contacts can be selected as an option.

By using a liquid-filled diaphragm measuring cell with fulcrum lever transmission, the model DW differential pressure switch is extremely robust and guarantees optimal operating characteristics.

Differential pressure switch for medium/high setting ranges, model DW
  • Differential pressure switch for medium/high setting ranges, model DW
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