Bellows & Bellow Assemblies

Engineering Expertise
Delivers Performance Superiority

Customized Precision
Since 1935, Alloy Precision Technologies has been designing and manufacturing custom engineered metal bellows and bellows assemblies for an array of industries, including aerospace,  medical,  industrial, petrochemical, power generation and semiconductor.

Our customers rely on our industry experience, proven equipment, processes, and material knowledge. Our in-house team of engineering experts are an extension of your team. We work with you to design bellows solutions from basic to the most complex  for demanding applications.

Alloy Precision Technologies is a vertically integrated manufacturing operation that provides high-quality bellows solutions. Leveraging our integration, we’re able to cost-effectively manufacture bellows and provide shorter lead times.

Alloy Precision Technologies’ combination of bellows, machined components, tubing and welding services delivers consistent, durable products with a high cycle life and lower cost of ownership for components and assemblies.

We continually invest in the tools and technologies necessary for world-class product development, including state-of-the-art, proprietary software for modeling, rapid prototyping, testing and manufacturing.

Full-Service Capabilities

By utilizing our full range of in-house capabilities, we offer our customers bellows designed for custom production runs, industries and sizes.

Hydroformed Bellows:

  • Proprietary technology & tooling to deliver components for challenging applications and medium- to large-size runs
  •  0.5” – 8” OD
  • Single, 2- and 3-ply designs
  • Wall thicknesses of  0.005” – 0.030

Mechanically Formed Bellows:

  • Minimum tooling costs make this the most cost-effective solution for smaller quantities
  • 1” – 8” ID
  • Single, 2- and 3-ply designs

In addition to manufacturing and engineering excellence, Alloy Precision Technologies can deliver a wide range of services. We weld, solder and braze seamless components and our kitting and assemblies combine our product lines into turnkey, read-to-use solutions. We also test all of our products in-house by our on-staff NDT level 1, 2, and 3 inspectors to ensure quality in every weld. Our testing includes:

  • X-ray
  • Fluorescent Penetrant Inspection (FPI)
  • Nitrogen bubble testing
  • Helium leak testing to 1 x  109 cc/second
  • Metrology analytical capability

We utilize a variety of materials for our bellows including:
  • Stainless steel
  • Inconel
  • Monel
  • Hastelloy
  • Titanium
  • Yellow Metals
Applications, specific products, components, and assemblies include:
  • Bellows sealed valves
  • Gas-lift valves
  • Actuators
  • Heat exchangers
  • Gas regulators
  • Instrumentation & control systems
  • Pressure sensors & relief valves
  • Flexible seals
  • Exhaust manifolds
  • Vacuum interrupters
  • Aneroid assemblies
  • Expansion joints
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