Locations
Contacts

Thorstein Korsvold

Web & Content Manager (Corporate Press Contact)

MAIL P.O. Box 142, NO-2831 Raufoss, Norway
VISIT Enggata 37, 2830 Raufoss, Norway
EMAIL thorstein.korsvold@nammo.com
TEL +4741100055

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 - 1530)
ESA ..
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

Dual In-line Thruster Valve

The Dual In-line Chemical Thruster Valve is a two stage solenoid actuated non-sliding fit flow control device, designed for propulsion system applications.

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

Nammo Space is developing the Dual In-line Chemical Thruster Valve [SVS10] together with the European Space Agency.  The valve is a two stage solenoid actuated flow control device, designed for propulsion system applications.

The Chemical Thruster Valve consists of a pair of identical valve stages. The inlet and outlet fittings are different which creates the upstream and downstream valve.  Each valve stage is a solenoid operated flow control valve with a single seat, single coil, normally closed with non-sliding fit configuration.  The design of the seal/seat interface ensures minimal flow discontinuities, therefore reducing susceptibility to contamination induced failures and minimising pressure losses.

Each valve is opened independently by energising each coil; the resulting force generated by the induced magnetic flux causing the armature to move towards the ‘fixed pole’, and in doing so lifts the seal from its seat.  The thruster valve is a fully welded component, ensuring the external leak meets the spacecraft needs.

The inlet incorporates a 25µm particle filter, integrated in the valve inlet. The inlet to the valve can be supplied with welded or threaded connections, using straight and right angled connections.  The outlet flange incorporates the interface with the thruster or other equipment. This is typically a bolted flange interface, and can be customised depending on the customer application.

Performance Characteristics

  • Typical Operating Media MMH, MON, Hydrazine, IPA, GN2, GHe, H2O2
    Typical propulsion fluids
  • Maximum Expected Operating Pressure 25.4 bar MEOP
    368 psi MEOP
  • Maximum Expected Inlet Pressure 42 bar
    609 psi
  • Back Relief Pressure 6.5 bar to 30 bar
    94 psi to 435 psi
  • Surge Pressure 42 bar for 0.2 seconds
    609 psi for 0.2 seconds
  • Proof Pressure 105 bar
    1,523 psi
  • Burst Pressure 185 bar
    2,683 psi
  • Flow Rate / Pressure Drop < 0.5 bar at 2 g/s H2O
    < 7.3 psi
  • Internal Leakage 1 x 10-5 scc/s GHe
    Tested at 1.5 x MEOP
  • External Leakage 1 x 10-6 scc/s GHe
    Tested at 1.5 x MEOP
  • Operating Temperatures 0°C to 100°C in qualification
    32°F to 212°F in qualification
  • Non-Operating Temperatures -40°C to 100°C
    -40°F to 212°F
  • Response Time < 15msec open/close
    at 24 Vdc under all conditions
  • 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 1,000,000 cycles
  • Filter Rating 25 µm absolute
  • Wetted Materials AISI316L, AISI304L, AISI430, PTFE
  • Hardware Mass 210 grams
    Excluding flying leads
  • Envelope 126 mm x 48.1 mm x 24.3 mm
    With straight weld tube.
  • Pull-in Voltage 22 Vdc
  • Input Voltage Range 24 Vdc to 38 Vdc
  • Coil Power Maximum 6.13 Watts
    Per stage at 28 Vdc
  • Fluidic Interface 1/4” tube stub or threaded AS4395 fitting
    The interfaces can be customised based on the customer needs.
  • Structural Interface Metallic Flange with bolt holes
    The interfaces can be customised based on the customer needs.
  • Technology Readiness Level TRL5
    Qualification will be complete during 2021.

Status

This thruster valve is being developed with ESA for Nammo Space small thrusters and global chemical thrust applications.