Industry Leading High Pressure Bellows
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Built for extreme environments where zero leakage, zero contamination, high reliability, and long life are required.
Standard Bellows Product
Our line of standard welded metal bellows products for applications where you can take advantage of standard sizes and materials. Sizes range from .375” OD to 18.00” OD and are available with a variety of standard end configurations.
Custom Welded Metal Bellows and Bellows Assemblies
We also provide custom designs for more complex bellows and assemblies designed to meet required cycle life—from dozens to millions or even infinite. Construction materials include: stainless steels, high nickel alloys, titanium or others to meet the operational and environmental conditions of your application.
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Bellow Pressure Product Highlight
Engineering
We develop new products (and reimagine conventional ones) for oil and gas components such as bellows, compensators, accumulators, high pressure seals, and more. We design for extremes of temperature, pressure, and corrosive environments—especially when high lifecycle, zero leakage, maintenance-free operation, and high performance are essential. Our process is fast and efficient, with full in-house resources, including: 3D solid modeling (rapid proof-of-concept), finite-element structural analysis, flow simulation and sizing—along with all required qualification and documentation to meet global performance standards.
Related Case Studies
Maintaining alignment under tough conditions
Unfortunately, tolerance stacks across the system would regularly force the pedestal off-center and out-of-alignment with the shower head resulting in quality issues and necessitating manual re-adjustments to the assembly.
Toxic gases demand utmost care in handling
Moving highly toxic gasses from bulk storage to the point-of-use is a perennial challenge for many semiconductor manufacturers. Unfortunately, most conventional pumps rely on seals that are subject to wear—potentially risking harmful leakage and human exposure.
About Senior Metal Bellows
At Senior Metal Bellows, we’ve built a 65-year legacy of solving the toughest challenges in demanding industries, creating precision components that function under the harshest conditions. Our customers represent the top innovators in defense, aerospace, oil & gas, medicine and semiconductor manufacturing.
Our Company
Performance-driven organizations turn to the Senior Metal Bellows team of engineers, designers and fabricators—as passionate and committed colleagues—in order to push the boundaries of their disciplines. We have helped them accomplish their objectives from the deepest parts of the ocean floor to the far reaches of outer space.
Confidence & Reliability
As part of the Senior family of companies, we offer you the confidence and reliability of a global organization with significant resources and demonstrated stability.
We are proud to have played a part in some of the historic scientific, medical, and military breakthroughs of the 20th Century, and look forward to serving you, as you pursue tomorrow’s “impossible” goals. We hope you will consider us a ready and proven resource.
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(781) 786-8582
Dynamic Bellows Seals, and Seal Assemblies
We design and manufacture a variety of bellows dynamic seals, ideal for high temperature applications where elastomeric seals break down. Our seals can be circular, square, rectangular, oval—or whatever shape fits your application. Common materials of construction include stainless steel or high nickel alloys. Typical applications include engine nacelle seals, firewall seal, fuel drain seal, and engine duct seals.
Critical tolerances, Bio- and chemo-compatibility
Extreme demands for reliability, precision, and absolute seal were matched by the already strict regulatory requirements for biocompatibility and compatibility with the drugs the new system was dispensing within the body.