ESA Vega
Product Pictures
Contact

Derek Harris

Business Development Manager

MAIL 15 Northwest Business Park, Ballycoolin, Dublin 15, D15FF6K, Ireland
EMAIL derek.harris@nammo.com
TEL +353 87 211 9010

NAMMO IRELAND

ENGINEERING

  • Dedicated, skilled space engineering team
  • Design and qualification of fluid control devices for spacecraft and launcher applications
  • Structural hardware design for production
  • Design for survivability in extreme launcher applications
  • Design knowledge and techniques for Additive Manufactured hardware

PRODUCTION

  • CNC machine tools, including 5-axis
  • Electro Discharge Wire machine tools
  • Spherical bearing production with Everlube 811 bearing lubrication
  • Prototyping for development and production hardware
  • Precision machining of specialist and exotic alloys for rocket engine applications

CLEANROOM and TESTING

  • ISO Class 8 environment, with Class 5 laminar flow booths
  • Water flow test
  • Thermal vacuum cycling
  • Vacuum testing
  • Cleanliness measurement

QUALITY and INSPECTION

  • Certified to AS9100
  • Fully equipped metrology department
  • CMM and optical measuring equipment
  • Complete traceability of material and inspection records
  • Trained DPRV personnel
Location

Nammo Ireland Northwest Business Park, Dublin, County Dublin, Ireland

Datasheet

2021 Nammo Ireland Thruster Flow Control Valve

Apogee Engine Valve

The Apogee Engine Valve is a single stage, redundant solenoid coil thruster flow control device. It is a non-sliding fit valve, specifically designed for propulsion system applications.

Product Pictures
Contact

Derek Harris

Business Development Manager

MAIL 15 Northwest Business Park, Ballycoolin, Dublin 15, D15FF6K, Ireland
EMAIL derek.harris@nammo.com
TEL +353 87 211 9010

NAMMO IRELAND

ENGINEERING

  • Dedicated, skilled space engineering team
  • Design and qualification of fluid control devices for spacecraft and launcher applications
  • Structural hardware design for production
  • Design for survivability in extreme launcher applications
  • Design knowledge and techniques for Additive Manufactured hardware

PRODUCTION

  • CNC machine tools, including 5-axis
  • Electro Discharge Wire machine tools
  • Spherical bearing production with Everlube 811 bearing lubrication
  • Prototyping for development and production hardware
  • Precision machining of specialist and exotic alloys for rocket engine applications

CLEANROOM and TESTING

  • ISO Class 8 environment, with Class 5 laminar flow booths
  • Water flow test
  • Thermal vacuum cycling
  • Vacuum testing
  • Cleanliness measurement

QUALITY and INSPECTION

  • Certified to AS9100
  • Fully equipped metrology department
  • CMM and optical measuring equipment
  • Complete traceability of material and inspection records
  • Trained DPRV personnel
Location

Nammo Ireland Northwest Business Park, Dublin, County Dublin, Ireland

Datasheet

2021 Nammo Ireland Thruster Flow Control Valve

Nammo Space has a range of solenoid valves for propulsion system and thruster applications.  The SVS06 range of flow control valves for propulsion applications are compatible with a wide range of propellants used in chemical and green propulsion.

The valve is a normally closed, non-sliding fit, with dual or single coil designs.  The valve is a fully welded construction.  The inlet fitting is 3/8” Tube or AS4395 (straight or 90°) and the outlet flange incorporates the interface for the thruster.  The solenoid actuator is used to open the valve for steady state flow, and can also be used in pulse mode. The valve is fitted with redundant coils for improved reliability.

The valve is a fully welded structure, ensuring a zero external leak rate.  The inlet includes a 25µm particle filter.  The outlet flange incorporates the interface with the thruster or other equipment. This is typically a bolted flange interface.

The solenoid coils are located in a replaceable sleeve, mounted on the valve core.  There are a variety of power and voltage options for the valve.  An internal heater can be supplied as an option for this valve.

Performance Characteristics

Note that there are 4 versions of this flow control valve, please see the datasheet on this page for further details.

  • Typical Operating Media MMH, MON, Hydrazine, IPA, GN2, GHe, H2O2
    Typical propulsion fluids
  • Maximum Expected Operating Pressure 22 bara MEOP
    319 psia MEOP
  • Surge Pressure 140 bar for 0.2 seconds
    2,031 psi for 0.2 seconds
  • Proof Pressure 42 bar
    609 psi
  • Burst Pressure 82 bar
    1,189 psi
  • Pressure Drop - Flow Rate < 2 bar at 95 g/s H2O
    < 29 psi
  • Internal Leakage 8 x 10-4 scc/s GHe
  • External Leakage 1 x 10-6 scc/s GHe
  • Operating Temperatures -29°C to +102°C in qualification
    -20°F to 216°F in qualification
  • Non-Operating Temperatures -54°C to 130°C
    -65°F to 266°F
  • Response Time < 30msec opening
    <35 msec closing response
  • Vibration 37.68 gRMS
  • Shock 2000g
    1.5kHz -10kHz
  • Electrical Interface Flying leads
    The interfaces can be customised based on the customer needs.
  • Operating Cycle Life 8,000 cycles
  • Filter Rating 25 µm absolute
  • Wetted Materials AISI316L, AISI304L, AISI430, PTFE
  • Hardware Mass 440 grams
    Excluding flying leads
  • Envelope 52mm x 38.1mm x 74mm
    With straight weld tube.
  • Pull-in Voltage 22 Vdc
  • Input Voltage Range 18 Vdc to 27 Vdc
  • Coil Power 38 Watts
    Per coil
  • Fluidic Interface 3/8” tube stub or threaded AS4395 fitting
    The interfaces can be customised based on the customer needs.
  • Structural Interface Metallic Flange with bolt holes, for M4 screws
    The interfaces can be customised based on the customer needs.
  • Internal Heater 2 Watts at 35 Vdc
  • Technology Readiness Level TRL9
    On RCS on SS-520 launcher

Status

This thruster valve has been developed with ESA and Nammo Westcott, for example it can be use on the LEROS 1c and LEROS 4 engines.  The valve has also been used in a launcher cold gas roll control system.  Another version of this valve is being used on the H2O2 Roll and Attitude Control System on the Vega AVUM+ stage.

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Norway

Nammo AS

MAIL P.O. Box 142, NO-2831 Raufoss, Norway
VISIT Enggata 40, NO-2830 Raufoss, Norway
EMAIL info@nammo.com
TEL +47 61 15 36 00 (0800 - 1500)

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