Bipropellant Tank with Stiff-Plastic Separation Devices (Diaphragms)

KDU 11D414HC propulsion system for communication satellite.
Flight qualification of the product:
Letter "O", flight use
Possibility to adapt the product to customer requirements: Yes

Parameter Value
Propellants, Fuel/Oxidizer UDMH/NTO
Operating Pressure, not over 2.94 MPa
Mass 15.5 kg
Total Volume of Propellant Compartments 40 dm³
Unused Propellant Residue after Expulsions, not over 2.2 dm³
Allowable Helium Leak during Leakage Test, l·μm of He/s, not over 1 · 10ˉ³
Allowable Leak Rate throughout Service Life, l·μm of He /s, not over 2.33 · 10ˉ²
Inner Compartment Cleanness Russia State Standard GOST 17216, Class 5
Guaranteed Service Life 15 years


Propellant storage and feed to liquid propellant thrusters.

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