Key Advantages :
High vacuum performance down to 1×10⁻⁷ mbar
Ultra-wide thermal range from -190°C to +200°C
Simultaneous vacuum and thermal cycling capability
Stable pressure regulation across multiple vacuum levels
Designed for long-duration aerospace qualification testing
Supports LN₂, gaseous nitrogen, and mechanical refrigeration configurations
Fully customizable chamber dimensions and payload fixtures
Patent Number: CN202510795397.6
Key Specifications of TVAC Chamber:
| Capacity(L) | 500~50,000L（Customizable） |
| Working pressure | 1Kpa to -0.8 Mpa |
| Air Pressure Control Accuracy | ≤ ±0.0002 MPa |
| Pressurization Rate | Ambient Pressure→-0.8MPa ≤30min |
| Depressurization Rate | 1Kpa→Ambient Pressure ≥30min |
| Humidity Control | ≤30% RH |
| Continuous operation: | ≥2000 hours, design life 19 years |
| Main material | Stainless steel SUS304, SS316L, Low alloy steel,Titanium, Nickel,Zirconium,or Hastelloy,Monel alloy and cladding plate |
| Seal type | Magnetic seal, mechanical seal, packing seal and gasket seal. |
Vacuum levels in the 10⁻⁵ to 10⁻⁷ torr/mbar range are commonly associated with spacecraft TVAC qualification depending on mission requirements.
Opening:
The TVAC Chamber (Thermal Vacuum Chamber) is engineered to reproduce the vacuum and thermal conditions encountered in space, enabling qualification and reliability testing for spacecraft, satellite subsystems, aerospace electronics, and other mission-critical hardware.
By combining high vacuum levels with extreme thermal cycling, the chamber accurately simulates orbital and deep-space environments where conventional environmental chambers cannot replicate operational conditions. Thermal vacuum testing is a standard qualification step in aerospace programs because it approximates real space conditions prior to flight.
How a TVAC Chamber Works
A TVAC chamber combines:
Vacuum Generation System
Creates low-pressure / high-vacuum environments using multi-stage pumping systems.
Thermal Shroud / Cold Plate
Controls radiative heating and cooling of the test article.
Simulates orbital hot/cold transitions through programmable temperature profiles.
Unlike standard environmental chambers, heat transfer in vacuum occurs primarily through radiation and conduction rather than convection, making thermal-vacuum testing fundamentally different from ambient thermal testing.
Why TVAC Testing Is Critical
TVAC testing helps engineers identify failure modes that may not appear in ambient testing, including:
Vacuum-induced overheating
Material outgassing contamination
Seal leakage under vacuum
Thermal distortion of structures
Cold-soak / hot-soak electronic drift
Radiative heat imbalance in vacuum
Industry practitioners note that hardware can pass ambient thermal tests yet fail TVAC due to vacuum-specific thermal behavior and outgassing effects.
TVAC Chamber vs Standard Environmental Chamber:
| Feature | TVAC Chamber | Standard Temperature Chamber |
|---|---|---|
| Vacuum Capability | Yes | No |
| Space Simulation | Yes | No |
| Heat Transfer Mode | Radiation / Conduction | Convection |
| Outgassing Test | Yes | No |
| Aerospace Qualification | Required | Not Applicable |
Why Choose TestEQ TVAC Chambers:
Aerospace-focused chamber engineering expertise
Proven high-vacuum sealing and leak control design
Modular thermal shroud / platen architecture
Support for custom aerospace fixture integration
Scalable systems from component-level to full subsystem testing
Global support for defense and aerospace qualification labs
Optional Configurations:
Liquid Nitrogen Boost Cooling
Thermal Balance Test Mode
Residual Gas Analyzer (RGA)
Solar Simulation Heating
Multi-Zone Thermal Control
Large Payload Vacuum Platforms
Automated Data Acquisition System
FAQ:
What does TVAC stand for?
TVAC stands for Thermal Vacuum Chamber, a system used to simulate the vacuum and temperature extremes of space.
What vacuum level is required for space qualification?
Typical aerospace qualification ranges from 10⁻⁵ to 10⁻⁷ mbar/torr equivalent, depending on mission and standard requirements.
Why use a TVAC chamber instead of a temperature chamber?
Because standard temperature chambers cannot reproduce vacuum conditions, radiative heat transfer, or outgassing effects present in space.
What industries use TVAC chambers?
Primarily aerospace, satellite manufacturing, defense electronics, advanced optics, and research laboratories.
Can the chamber be customized?
Yes. Chamber volume, vacuum system, shroud design, temperature range, and fixture layout can all be customized.
Typical Applications:
TVAC chambers are widely used for:
Satellite subsystem qualification
Spacecraft component thermal balance testing
Aerospace electronics validation
Vacuum outgassing and material screening
High-reliability military electronics testing
Optical payload and sensor verification
Battery and propulsion subsystem thermal-vacuum testing
CTA:
"Request a custom TVAC chamber solution today."
Our aerospace test engineers can configure a thermal vacuum system tailored to your payload dimensions, vacuum requirements, and qualification standards.
We will contact you within 1 working day, please pay attention to the email with
the suffix "@test-eq.com".
We will contact you within 1 working day, please pay attention to the email with the suffix "@test-eq.com".
P.IVA: 91441900MAECQJHY37 Guangdong Test EQ Equipment Co., Ltd. | All Rights Reserved
