Metal Diaphragm
Bellows Assemblies

Custom diaphragms for critical applications

Sigma-Netics designs and manufactures custom metal diaphragms for when extremely accurate pressure versus deflection curves are required.

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  • Expert design and prototyping support
  • Short lead times
  • In-house testing and verification
  • A variety of metal and steel alloy options
  • Cost competitive

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  • Application engineering support throughout the design and prototype process
  • 100% leak checked assemblies
  • Prototype and fixture manufacturing on-site for quick turnaround on samples and proof of concepts
  • Cost competitive
  • Low cost to entry
  • Stocking programs for Kanban releases
  • Application verification through in-house life testing and design verification testing

Available Options

  • Beryllium Copper, Ni-Span-C, 316L, 17-7PH, consult factory for other options
  • 1/2 to 3 in. standard size OD
  • 0.002 to 0.008 in. standard diaphragm thickness
  • Custom configurations and fittings available


  • Pressure and temperature sensing
  • Aerospace Instruments such as altimeters, airspeed, and pitot-static pressure
  • Aneroids for fuel to air mixtures, oxygen systems and automatic deployment systems
  • Media isolators

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[email protected] | 973-616-6900

2 North Corporate Drive, Riverdale, NJ 07457 | Sigma-Netics, Inc. © 2021