Eaton’s satellite propulsion regulator is an integral component used to pressurize bipropellant tanks in communication satellite propulsion systems. We designed our regulators with a lightweight composite spring system, a machined titanium housing and in a series-redundant configuration to ensure continued system function should either of the redundant regulator pair fail open, ensuring high reliability.
Our satellite propulsion regulator features metal-to-metal seats in both stages to resist upstream migration of dinitrogen tetroxide (N2O4) or hydrazine (N2H4) vapors. In the absence of such vapors, a metal-to-Vespel® seat can be used in the upstream regulator to further mitigate internal leakage. Additionally, Eaton’s valve designs utilize welded closures throughout the gas flow path to further minimize external leakage.
| Item | Imperial | Metric |
| Medium | Helium | |
| Inlet Pressure | 400 to 4,000 psig | (28 to 276 barg) |
| Outlet Pressure | 232 psig | (16 barg) |
| Lockup Pressure | 247 psig | (17 barg) |
| Lockup Pressure | 6,000 psig | (414 barg) |
| Burst Pressure | 12,000 psig | (827 barg) |
| Flow | 6.7 scfm | |
| Internal Leakage | 5.6 x 10-2 sccs | |
| External Leakage | 1.0 x 10-6 sccs | |
| Weight | 2.15 lb max | (0.98 kg) |
| Item | Imperial | Metric |
| Temperature | -50 to 120 deg F | (-46 to 49 deg C) |
| Humidity | 0 to 95% | |
| Vibration | 12.1 grms each axis |
Invia e-mail
