Sigma-Netics, Inc.

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, 784, 703-U, 703-UJ, 768-S Diaphragm, 768-C Diaphragm and 768-V Diaphragm

Whether it is a new custom design or an existing application that needs to be renewed Sigma-Netics uses repeatable and programmable means to join our precision metal bellows with unique components. Our value added bellows assemblies can be turnkey pressure or temperature sensing units or a simple assembly allowing for a more streamlined production process for our customer.

Pneumatic Systems that deliver compressed air from the APU to other points in the aircraft. Ice and rain protection including airfoil, engine cowl, and windshield ice and rain protection. Air Conditioning including heating, cooling, and ventilation system

• MODEL744-S

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 capabilityFactory set pressure Custom electrical connections 8 to 6000psig