Advanced Cooling Technologies, Inc. (ACT) has a large portfolio of products for spacecraft thermal control, including Constant Conductance Heat Pipes (CCHPs), Variable Conductance Heat Pipes (VCHPs), Copper-Water Heat Pipes and High Conductivity (HiK™) plates, Loop Heat Pipes (LHPs), Accumulators for Pumped Fluid Systems, Phase Change Material (PCM) Heat Sinks, and Cold Plates for Thermal Vacuum Testing. In addition, ACT conducts Advanced R&D for Spacecraft Thermal Control.
Constant Conductance Heat Pipes (CCHPs)
Aluminum-ammonia and aluminum-ethane CCHPs are used for spacecraft thermal control.
Variable Conductance Heat Pipes (VCHPs)
Aluminum-ammonia and aluminum-ethane VCHPs are used to maintain electronics within a narrow temperature band, over wide variations in power and sink conditions.
Copper-Water Heat Pipes and High Conductivity (HiK™) Plates
Copper-water heat pipes and High Conductivity (HiK™) plates with embedded heat pipes are suitable for direct contact with electronics, as well as improving the thermal conductance of spacecraft electronics chasses.
Loop Heat Pipes (LHPs)
Aluminum-ammonia and aluminum-propylene LHPs are used instead of CCHPs when higher powers and adverse elevations are required.
Phase Change Material (PCM) Heat Sinks
PCM heat sinks store heat during high power pulses, reducing the size and mass of the radiator required.
Accumulators for Pumped Fluid Systems
Accumulators are used to accommodate changes in the volume of a pumped loop across the broad temperature range experienced in spacecraft applications, from -40°C to +55°C. ACT also has designed and fabricated custom fluid/thermal test systems for ground testing.
Momentum-Driven Vortex Phase Separator 
ICE-Lok™ Thermally Enhanced Wedgelocks