Mission Critical Dependability

Space transport vehicle and satellite manufacturers seek an optimal balance between performance, longevity and weight. Senior can perform trade studies to guide design decisions to help reach your ideal solutions. From lightweight material selections to decades of experience designing for the unique demands of space applications, we can develop innovative designs to help you navigate the ever more demanding requirements of the space industry.


SMB has an extensive range of product offerings designed exclusively for space applications. These products include thermal valves, accumulators, reservoirs, high-temperature seals, actuators, volume compensators and more, in applications including manned and unmanned spacecraft, launch vehicles, and satellites. Senior provides highly dependable designs to help you achieve extended mission life for your high-value assets.


We develop new products (and reimagine conventional ones) to help advance your technology and exceed your mission-critical requirements. Senior Metal Bellows offers robust, reliable, and repeatable technology with a wide range of design capabilities. By working with Senior, you can be assured that you will benefit from our extensive pedigree of designing and manufacturing products for critical space applications that incorporate our welded metal bellows technology.

We design for extremes of temperature, pressure, and corrosive environments—especially when high cycle life, zero leakage, maintenance-free and high performance is 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 qualifications and documentation.

Fabrication & Testing

We bring our innovative designs to life in an advanced manufacturing facility where state-of-the-industry processes are executed under the highest standards. Seasoned technicians supervise advanced fabrication in:

  • Metal joining & forming with vacuum furnaces, and hydraulic presses to 1200-ton strength
  • Precision welding including methods such as TIG, laser, and electron-beam
  • Metal finish & metallurgy, with two automated cleaning lines
    featuring advanced cleaning, passivation and etching capabilities
  • Functional testing, including extreme environmental chambers, spring, tensile, and acceptance testing. Performance validation for all parameters.

Download our Mini Accumulator Brochure

Custom-Engineered Mini Accumulators for Your Propellants / Fluids

Download our Space Case Study

Lightweight and Maintenance-Free Coolant Reservoir for Satellites

Download these related resource materials to find out more about Senior Metal Bellow’s extensive range of product offerings designed exclusively for space applications.

  1. Maintenance-Free Accumulators Reservoirs
  2. Coolant Accumulator and TVC
  3. Mission-Critical Thermal Valves and Actuators