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Explore Our Precision Thin-Walled Tubes in Our New Video

March 8, 2024

From sensor housings to biomedical devices, the amount of applications that need precision, thin-walled metal tubing is only growing. To meet this need, we’ve added these tubes to our product lineup.  These deep-drawn tubes come in many metal alloys with open or closed-end options. Using advanced tooling and manufacturing techniques, we can offer very low […]

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Precision, Thin-Walled Metal Tubes Have Joined the Sigma-Netics Product Offering

Precision, Thin-Walled Metal Tubes Have Joined the Sigma-Netics Product Offering

February 6, 2024

Many applications require precision thin-walled tubing like metal sensor housings — including those used in deep-sea systems — biomedical components and cartridge housings for defense applications, including precision bullet jackets and mortar ammunition.  Traditionally, manufacturing these deep-drawn tubes has been a challenge. At the same time, the need for them is only growing. At Sigma-Netics, […]

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UL-Rated 703-U/UJ Pressure Switches Achieve Long Life in Explosive Environments

UL-Rated 703-U/UJ Pressure Switches Achieve Long Life in Explosive Environments

July 7, 2021

Gaseous or liquid fluid systems in hazardous locations demand the toughest pressure switches. These components must incorporate heavy-duty designs that offer exceptional accuracy despite harsh environmental conditions. They must also carry the right safety ratings, guaranteeing reliable operation in applications like offshore exploration and petrochemical processing.  Our 703-U and 703-UJ Series of UL-rated, explosion-proof pressure […]

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Sensing Elements Take Front and Center On Our New Website

Sensing Elements Take Front and Center On Our New Website

November 17, 2020

At Sigma-Netics, we’re excited to announce the launch of our brand new website, which has made it easier than ever for you to learn about our new line of pressure transducers. Thanks to the site’s sleek, user-friendly design, you can also explore our technical resources, configure your own sensing element, learn about our company and […]

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Explore the SST 74X-UV Pressure Transducer In Our New Video

November 12, 2020

Check out this quick overview of our SST 74X-UV Submersible Vehicle Depth Pressure Transducer. This compact, 90-gram model features shallow diaphragm sensors and a configurable flange design for outboard or inboard bulkhead installation. Units include an all-welded hermetic construction that resists shock and vibration. The SST 74X-UV Series is ideal for many demanding applications, including […]

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Explore Our Radiation-Tolerant MV/V Pressure Transducer [Video]

July 30, 2020

The SST 64X-RT Series is ideal for a wide range of demanding applications—from satellite propulsion systems to reactor pressure management. Learn more about its features and specifications in our latest video.

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An Important Update About Sigma-Netics Operations During the COVID-19 Pandemic

An Important Update About Sigma-Netics Operations During the COVID-19 Pandemic

April 3, 2020

As all of us confront the COVID-19 crisis, we wanted to let you know about the status of our operations. Sigma-Netics is an essential manufacturing business as a critical supplier in defense and medical supply chains. Both our New Jersey and Virginia facilities continue to operate—accepting new orders and shipping existing orders for pressure switches, […]

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Satisfying the Unique Pressure Sensing Needs of Submersible Vehicles

Satisfying the Unique Pressure Sensing Needs of Submersible Vehicles

February 7, 2020

Recent growth in unmanned underwater vehicles (UUVs) across several industries is also creating a need for depth transducers that can satisfy unique sensing and instrumentation requirements. Not only must UUVs operate in difficult conditions, their designs are as varied as their missions. That’s why we introduced a depth measurement device for use with submersible vehicles […]

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Announcing Our Recent AS9100D Certification

Announcing Our Recent AS9100D Certification

March 4, 2019

We’re pleased to announce we were recently awarded AS9100D approval for the design and manufacture of our pressure switches, pressure transducers, metal bellows and other products. Developed by SAE International, AS9100D is a globally recognized quality management standard for the aviation, space and defense industries and incorporates the latest ISO 9001:2015 requirements. The certification represents […]

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Pressure Switches Combine Accuracy and Reliability for Oil and Gas Operations

Pressure Switches Combine Accuracy and Reliability for Oil and Gas Operations

July 18, 2018

Pressure switches for oil and gas facilities have to meet a set of challenging requirements. Not only should the switch provide exceptional accuracy and reliability, but it also must be suitable for use in hazardous locations—and carry the safety ratings to prove it. Our Model 703-U and 703-UJ explosion-proof pressure switches with piston actuation combine […]

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New Paper Explores How Pressure Switch Customizations Overcome Design Challenges

New Paper Explores How Pressure Switch Customizations Overcome Design Challenges

May 21, 2018

Pressure switches are often considered commodity items. But for many mission-critical or demanding applications—including aerospace, pharmaceuticals and chemical processing—your switch may require a custom mechanical design or electrical features that go beyond what commercial off-the-shelf switches can offer. With a little extra engineering, you can boost the performance of your switch and even overcome challenges […]

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Flush-Mount Pressure Switches—And Transducers Too

Flush-Mount Pressure Switches—And Transducers Too

January 22, 2018

Food, pharmaceutical and chemical processes often use tubular equipment to mix, transport or store materials. In these applications, it’s a good idea to keep any internal switches or sensors from protruding too far into the tube—where they can create a toehold for material buildup or impede flow. That’s where our newest pressure switch design comes […]

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Thermal Lockout for Hermetic Pressure Switches

Thermal Lockout for Hermetic Pressure Switches

December 5, 2017

In hydraulic systems, cold start-ups often cause pressure switching errors that disappear once the system reaches its normal operating temperature. The culprit behind these false high pressure signals is increased fluid viscosity, which temporarily increases the differential pressure across the diaphragm or pressure sensing device. A thermal lockout mechanism based on a snap-acting, temperature-sensitive bimetallic […]

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Off-Road Vehicle Sees Success In Pressure Switch Signal Delay

Off-Road Vehicle Sees Success In Pressure Switch Signal Delay

August 23, 2017

If your hydraulic systems suffer from pressure spikes, your pressure switches may not work as expected. The spikes can trigger the switch prematurely, even though continuous pressures remain below the set point. The result is a hard-to-control hydraulic system plagued by false switching signals. Fortunately, there’s a simple solution to these spike-induced switching errors: Just […]

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Video: Bellows for Temperature Switching

August 4, 2017

Temperature switching is another common use for metal bellows. The bellows are typically attached to a fluid-filled capillary. Changes in temperature cause the fluid to expand or contract, causing the bellows to move and actuate a switch, a gauge, or a valve. Bellows are found across many industries and are used extensively in thermostats, self […]

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New Diaphragm-Operated Pressure Switches For Tough Environments

New Diaphragm-Operated Pressure Switches For Tough Environments

May 26, 2017

With the release of our 745 and 785 Ruggedized Pressure Switches, we’re expanding our product line to help you better address low pressure applications that require high-sensitivity. 745 Pressure Switch. Our diaphragm-operated Model 745 Fixed Setting Pressure Switch is designed for low-pressure operations that require a compact form factor and high degree of sensitivity. Typical application […]

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Video: Bellows Sealing Applications

April 17, 2017

Of all the uses for metal bellows, the most common ones take advantage of their flexibility in coupling or sealing applications. Watch our latest video to learn why bellows work so well in sealing applications.

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Bellows for Pressure Sensing

January 23, 2017

One of the most common uses for metal bellows is in pressure sensing devices, including all kinds of industrial pressure gauges and switches.  Watch our latest video to learn why bellows work so well in pressure sensing applications. 

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Maximize Aneroid Performance

December 6, 2016

Altitude-sensing aneroids play a crucial role in flight systems. But keep in mind that the aneroid will only be as good as the metal bellows or diaphragm capsule that serves as the pressure sensing element. Here’s a brief introduction to what you need to know about aneroid performance.

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New 2-Pin Deutsch Pressure Switch For Tough Environments

New 2-Pin Deutsch Pressure Switch For Tough Environments

July 15, 2016

Our 784 Series of ruggedized pressure switches can now address more applications than ever, thanks to the addition of a compact 2-pin Deutsch option. Other than the change in connector, the pressure switch offers all the same performance characteristics as the original 3-pin Deutsch version. IP67-Compliant Pressure Switch. Whether 2- or 3-pin, the 784 pressure switch […]

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Understanding Metal Bellows Manufacturing Methods

Understanding Metal Bellows Manufacturing Methods

April 7, 2016

You can’t begin to talk about metal bellows performance without considering manufacturing methods. All key performance parameters depend on the way the bellows is formed or welded. Let’s take a look at two of the most common manufacturing methods: seamless hydroformed bellows and seam-welded formed bellows. Seamless hydroformed bellows. As their name suggests, seamless metal bellows […]

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Video: Ruggedized Switches Withstand Pressure Spikes

February 29, 2016

Ruggedized pressure switches have a stable switching response and a long lifecycle in the face of temperature extremes, moisture, chemicals, vibration, shock and pressure spikes—the biggest threat of all. Our high quality switches have a number of design features that help withstand these spikes. Check out this video now.

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How To Make Pressure Switches That Last

How To Make Pressure Switches That Last

February 8, 2016

Simple design principles for harsh operating conditions Ruggedized pressure switches play a critical role in failure-intolerant applications. At Sigma-Netics, we define rugged as a stable switching response and long lifecycle in the face of seven failure modes—pressure spikes, leaks, temperature extremes, moisture, chemical exposure, vibration and shock loads. Switches that can withstand these life-ending failure […]

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Designing With Metal Bellows

Designing With Metal Bellows

July 14, 2015

Metal bellows have long been a key component in demanding sensing and sealing applications. In fact, they’ve become so familiar that many engineers now think of bellows as generic items: Just specify a few key dimensions, pick a metal alloy and you’re good to go. The reality, however, is that not all bellows technologies are […]

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