Propellant Management Assembly (PMA)
- Purpose: PMA is intended for reducing the propellant high pressure and for supplying the propellant from the storage unit to XFC within the required pressure range.
- Guaranteed service life (years): 10
- Estimated production / delivery time (months): 12
- Flight qualification of the product: Yes
- Possibility to adapt the product to customer requirements: Yes
| Parameter | Value |
|---|---|
| Maximum inlet pressure at a temperature of 40 °С | 190 kgf/cm2 |
| Outlet pressure at propellant flow rate | (1.6 - 1.9 ) kgf/cm2 |
| Proof pressure / maximum operating pressure | 1.5:1 |
| Propellant flow rate at an inlet pressure of 3...190 kgf/cm2 | (2..35) mg/s |
| Nominal valve pull-in / drop-out voltage | 29/10V |
| Heater supply voltage | (10.0 ± 0.4) V |
| Pressure transducer supply current | 3...12 mA |
| Temperature sensor resistance at 0 ⁰С | (100.00 ± 0.25) Ohm |
| Temperature sensor operating current | ≤ 5 mA |
| Mass | 3 kg |
PMA is intended for propellant supply to stationary plasma thrusters. It provides an outlet flow rate of not less than 35 mg/s. Propellant - xenon.
Remark
Manufacturing lead time is given without taking into account the time needed to procure materials (4 months) and procured parts and components (6 months).
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