HYDROSPACE Group’s experience in Pressure Vessels for Human Occupancy includes manned submersibles as well as land based pressure vessels. The Space Simulator Pressure Vessel (SSPV) is a PVHO certified Altitude chamber. A hypobaric chamber, or altitude chamber, is a chamber used during aerospace or high terrestrial altitude research or training to simulate the effects of high altitude on the human body, especially hypoxia (low oxygen) and hypobaria (low ambient air pressure. The chamber can hold up to a 10-person crew, provides exceptional visibility inside and out during simulation of flight ascent/descent pressure profiles to an altitude of 100,000 ft. The Space Simulator Pressure Vessel (SSPV), is designed, fabricated, assembled, inspected, tested, and certified in accordance with the ASME PVHO-1 standard.


NASA has long used altitude chambers to simulate characteristics of the space environment. Although the chambers were originally used to test life support systems and space equipment, they are also used to simulate confinement and other unique challenges associated with space flight.

Commercial Space companies need these special chambers today to test the conditions for the general public that will soon learn to fly in space. The need for pressurized cabins in the spacecraft, and the contingency of emergency depressurization events in orbit pose new challenges today. Flight suits are the first line of defense. These provide a minimum pressure to the passenger in case the cabin loses pressure and reaches the vacuum of space. Custom suits are needed to fit individual passengers. This also means these must be tested and prospect astronauts need to train on the effects of rapid depressurization. The SUIT test chamber and the CABIN test chamber were delivered to the MACC facility in Midland, Texas in support of the new generation of space flight activity.

Ten-Person ALTITUDE CHAMBER - 100,000ft


  • 14.7 psi
  • 95 deg F
  • 50 deg F
  • 95 % RH
  •   5 % RH
  • 116 Deg F
  • -12 Deg F
  • 10.8 psi/sec
  • 24,000 lbs
  • 2,000 lbs
  • 4,640 lbs
  • 89.5 inch
  • 96 inch
  • 24 inch
  • 107 inch
  • 206 inch
  • 120 inch
  1. Maximum Allowable Working Pressure – External
  2. Maximum Operating Temperature
  3. Minimum Operating Temperature
  4. Maximum Operating Humidity Ambient
  5. Minimum Operating Humidity Ambient
  6. Maximum Storage Temperature
  7. Minimum Storage Temperature
  8. Maximum rapid recompression rate
  9. Max. Weight (no occupants)
  10. Max Weight of Internal Structure (No Occupants)
  11. Maximum Weight of Occupants
  12. Inside Diameter
  13. CYLINDER Outer Diameter
  14. Back Door Window Viewable Diameter
  15. Max. Base Width Chamber Floor
  16. Max. Chamber Length
  17. Max. Height with vessel support structure