Bipropellant Torque Motor Thruster Valves
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Key Advantages
- Precise control of both fuel and oxidizer
- Minimum dribble volume
- All welded design to prevent external leakage
- With latch isolation and stainless steel construction
- Normally closed valve state
- Microswitch or HED position indication available for latch valves
Characteristic | 2.5lbf (10 N) Thrust
|
5 lbf (22 N) Thrust Redundant Seat |
15 lbf (66 N) Thrust Redundant Seat |
25 lbf 111n Thrust Redundant Seat |
100 lbf (445 N) Thrust Single Seat |
Max Operating Pressure, MEOP [psia (bar)] | 319 (22) | 319 (22) | 425 (29.3 | 285 (197) | |
Proof Pressure [psia (bar)] | 479(33) | 1102 (76) | 750 (51.7) | 552 (30.1) | |
Burst Pressure [psia (bar)] | 1,276 (88) | 1,870 (129) | 2,000 (138) | 1,500 (89) | |
Operating Voltage Range [Vdc] | 25 to 43 | 25 to 43 | 24 to 33 | 21 to 35.5 | |
Open Response Time [msec | 2.3 to 2.9 | 1.8 to 2.4 | 9 max | 30 max | |
Close Response Time [msec] | 2 max | 2 max | 4 max | 30 max | |
Power Consumption [watts] | 8.2 at 51.5 Vdc & 70F | 8 at 43 Vdc & 70F | 23 at 33 Vdc & 70F | 19 at 35.5 Vdc & 70F | |
Leakage per Seat, Internal [scc/hr] | 1.8 | 1 | 5 | 5 | |
Leakage, External [scc/s] | 1E-6 | 1E-6 | 1E-5 | 1E-4 | |
Cycle Life [cycles] | 1,000,000 | 1,000,000 | 100,000 | 10,000 | |
Weight [lbm (gram)] | 0.52 (235) | 1.2 (550) | 1.9 (860) | 2.0 (910) | |
Inlet Filtration, [micron absolute rating] | 40 | 40 | 50 | 35 | |
Operating Temperature Range [ºF (ºC)] | 32 to 140 (0 to 60) | 14 to 302 (-10 to 150) | 20 to 140 (-10 to 60) | 50 to 122 (10 to 50) | |
Representative Model Numbers | -051-215A -051-131C |
-051-338 |
52-189 | 53-177 53-163 |