Pressure
Switches

Heavy-duty switches for demanding applications

Sigma-Netics pressure and vacuum switches offer extensive cycle life under the harshest operating conditions. For more than 50 years, our ruggedized pressure switches focus on protecting equipment, processes and personnel. Our switches have served in demanding mining, oil-and-gas, aerospace, military and industrial applications.

We produce nine pressure switches: 744-S, 744-C, 744-V, 745, 784, 785, 703-U, 703-UJ, 768-S Diaphragm, 768-C Diaphragm and 768-V Diaphragm.

Select Setting:
UL Explosion Proof:
Low Pressure:
Ultra Rugged:
 
Select Setting:
UL Explosion Proof:
Low Pressure:
Ultra Rugged:
 

744-S Rugged Industrial Fixed-Setting Pressure Switch

This fixed-setting pressure switch is a miniature piston-operated factory set design for applications with limited installation space.

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High overpressure capability
  • Factory set pressure
  • Custom electrical connections
  • 8 to 6000psig

744-C Rugged Field Adjustable Pressure Switch

Ideal for use in areas with limited installation space, this model is a miniature piston-operated, field adjustable pressure switch designed to withstand challenging operating conditions.

  • High overpressure capability
  • Close accuracy and repeatability
  • High shock and vibration survivability
  • Field adjustable pressure
  • Custom electrical connections
  • 25 to 6000psig

744-V Rugged, Heavy-Duty Pressure Switch

With a small, rugged piston, this heavy-duty pressure switch is excellent for applications with limited installation space.

  • Higher amperage
  • Custom configuration
  • Wide media compatibility range
  • Snap-action electrical switch tested to 1 million cycles
  • Factory set pressure
  • High electrical capacity
  • 8 to 125psig

745 Compact, Low-Pressure, Fixed-Setting Pressure Switch

A diaphragm-operated model for low-pressure applications that require high-sensitivity and a compact form factor.

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High overpressure capability
  • Factory set pressure
  • Custom electrical connections
  • 8 to 6000psig

784 IP67 Integral Deutsch Connector Pressure Switch

Equipped with either a 2- or 3-pin Deutsch connector and compliant with IP67 standards, our 784 pressure switch is a miniature piston-operated factory set design for applications with limited installation space. This unique model thrives in tough environments containing oil, fuel, water, dust, vibration or shock.

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High shock and vibration survivability
  • 2- or 3-pin Deutsch versions
  • Factory set pressure
  • IP67 Integral Connection
  • 8 to 6000psig

785 IP67 Integral Deutsch 2- and 3-Pin Pressure Switch

Equipped with either a 2- or 3-pin Deutsch connector and compliant with IP67 standards for maximum environmental protection.

  • Snap-action electrical switch tested to 1 million cycles
  • Gold contact switches for dry circuit applications
  • High shock and vibration survivability
  • 2- or 3-pin Deutsch versions
  • Factory set pressure
  • IP67 Integral Connection
  • 7 to 160psig

703-U UL-Rated, Explosion Proof Pressure Switch

Offering exceptional accuracy and repeatability, this design is a heavy-duty, factory set pressure switch used for gaseous or liquid fluid systems.

  • Snap-action electrical switch tested to 1 million cycles
  • 316L stainless steel construction for excellent corrosion resistance
  • Exceptional accuracy and repeatability
  • UL rated explosion proof
  • Factory set pressure
  • 6 to 5000psig

703-UJ UL-Rated, Explosion Proof Pressure Switch

Designed for easy field adjustment, our heavy-duty 703-UJ adjustable pressure switch is good for use in gaseous or liquid fluid systems.

  • 316L stainless steel construction for excellent corrosion resistance
  • Exceptional accuracy and repeatability
  • High overpressure capability
  • UL rated explosion proof
  • Factory set pressure
  • 6 to 5000psig

768-S Compact Diaphragm Pressure Switch

Ideal for low pressure and vacuum applications, this pressure switch’s Delrin® housing makes it a good choice when sterilization and cleanliness are necessary.

  • Available in brass and stainless steel
  • Low hysteresis
  • Media compatibility
  • Factory set pressure
  • Vacuum and low pressure applications

768-C Adjustable Pressure Diaphragm Pressure Switch

Designed for high performance in low pressure applications, this adjustable diaphragm pressure switch features a compact size and Delrin® housing for sterilization and cleanliness.

  • Exceptional accuracy and repeatability
  • Low hysteresis
  • Media compatibility
  • Field adjustable pressure
  • Vacuum and low pressure applications

768-V Compact, Fixed Pressure Diaphragm Pressure Switch

This model excels in low pressure applications requiring high electrical capacity and features Delrin® housing for sterilization and cleanliness.

  • Available in brass and stainless steel
  • Exceptional accuracy and repeatability
  • Low hysteresis
  • Factory set pressure
  • High electrical capacity
  • Vacuum and low pressure applications

Custom Pressure Switches

In addition to commercial off-the-shelf (COTS) models, we design, manufacture and deliver custom engineered pressure switches for a range of challenging industries, including oil and gas, medical, transportation, food processing, military, commercial aerospace and more.

  • Customizable configurations and electrical connections
  • Extended functionality features:
    • Signal delay
    • Thermal lockout
    • Dual-switch capabilities

sales@sigmanetics.com | 973-616-6900

2 North Corporate Drive, Riverdale, NJ 07457 | Sigma-Netics, Inc. © 2020