Propellant Management Assembly (PMA)

    • 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
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    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

    Description

    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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