Constant Conductance Heat Pipes (CCHPs)
ACT (Advanced Cooling Technologies)
Precision-engineered aerospace CCHPs with over 118 million space flight hours heritage, manufactured under ISO 9001:2015 and AS9100D certified quality systems.
Typed specifications12 values
Discloses 3 of 7 fields engineers filter by in this category (category median 2).
- Envelope (L×W×H)
- Up to 20' (6.1 m) Length datasheet p.6 0.25" to 1.0" (0.64 cm to 2.5 cm) Diameter
- Radiation tolerance (TID)
- 600 krad Total Ionizing Dose (TID) · datasheet p.5
- Export status
- EAR datasheet p.11 ITAR
- Product type
- heat pipe Constant Conductance Heat Pipes (CCHP) · datasheet p.6
- Length
- 6 100 mm max · Up to 20' (6.1 m) · datasheet p.6
- Working fluid
- ammonia VIPER rover: aluminium-ammonia CCHPs · datasheet p.10
- Flight heritage
- Flight-proven in hundreds of missions datasheet p.6
- Missions flown
- 100 datasheet p.6
- Outer diameter
- 6.4 mm min · 0.25" (0.64 cm) · datasheet p.6 25 mm max · 1.0" (2.5 cm)
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier7 lines, in the manufacturer's own wording
- Space flight hours heritage
- 118,664,340+ hours
- Quality certification
- ISO 9001:2015, AS9100D
- Welding standard
- AWS D17.1
- Leak detection method
- Helium mass spectrometer
- Fluid purity process
- Triple distillation
- Length
- Up to 20' (6.1 m)
- Diameter
- 0.25" to 1.0" (0.64 cm to 2.5 cm)
About
ACT’s Constant Conductance Heat Pipes (CCHPs) are the industry benchmark for passive spacecraft thermal control, with proven heritage exceeding 118,664,340 space flight hours. Manufactured to exacting aerospace standards under ISO 9001:2015 and AS9100D quality systems, every component is fully aerospace-certified. Welding is performed to AWS D17.1 specifications.
The manufacturing process employs multi-stage chemical cleaning, triple distillation for ultra-pure working fluids, helium mass spectrometer leak detection, and specialized thermal performance testing. ACT utilizes proprietary heat pipe simulation models to calculate capillary limits based on exact groove geometry, determining the optimum fluid charge for specific mission applications.
CCHPs are the workhorse of spacecraft thermal management, transporting waste heat from payloads and electronics to radiator panels with no moving parts, no power consumption, and no maintenance requirements. They accommodate a wide range of bending configurations and can be integrated into flat panels, chassis structures, or saddle-mounted to cylindrical components.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.