DLR -Prisma Formation Flying .
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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 Contae Bhaile Átha Cliath, Ireland

Datasheet

2021 Nammo Ireland Mechanical Pressure Regulator

2021-Nammo-Ireland-Manufacturing-Capabilities

Mechanical Pressure Regulator

The Cold Gas Mechanical Pressure Regulator is a single stage passive flow control device, primarily intended for gaseous regulation in propulsion systems. The regulator will step down the high pressure inlet gas to a predefined outlet pressure for the customer.

Picture Gallery
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 Contae Bhaile Átha Cliath, Ireland

Datasheet

2021 Nammo Ireland Mechanical Pressure Regulator

2021-Nammo-Ireland-Manufacturing-Capabilities

The design approach permits the implementation of soft seat technology which reduces the sealing forces required and consequently limits the performance degradation which could otherwise occur with harder seat materials/higher sealing forces.  The sealing forces are derived from the lock-up pressure acting on the diaphragm.

The regulator can also be delivered in a dual stage series redundant configurations.  The dual stage regulator can be either forward or reverse cascade configuration.  There are no sliding fits involved, reducing the risk of particulate contamination.  Filters can be included at the inlet and the outlet of the unit.  Compensation for decreasing inlet pressure is included within the design.

The regulator is manufactured from lightweight Titanium, and the seal material is PCTFE.  The regulator is all electron-beam welded construction, with tubing and mounting interfaces to customer requirements.  This single stage design regulator was used successfully on the PRISMA formation flying mission.

Performance Characteristics

  • Operating Media GN2
  • Inlet Pressure 250 bar
    3,626 psi
  • Outlet Pressure 4 bar nominal
    58 psi nominal
  • Set Point Accuracy 3.9 bar to 4.1 bar
    56.5 psi to 59.4psi. Set at max operating inlet pressure.
  • Outlet Pressure Tolerance +/- 0.4 bar over life
    5.8 psi
  • Lockup <1.5 bar above set point
    < 21.7 psi above the set point
  • Outlet MEOP 6 bar maximum
    87 psi maximum
  • External Leakage < 1x10-6 GN2 over pressure and temperature range
  • Internal Leakage at Lockup <1x10-4scc/s GN2
  • Operating Temperature +17°C to +60°C
    +62.6°F to 140°F
  • Non-Operating Temperature -20°C to +60°C
    -4°F to 140°F
  • Mass Flow 10 mg/s GN2
  • Mission Life 1 year
  • Hardware Mass 0.25 kg
    0.55 lb
  • Envelope 107 mm x 60 mm x 63 mm
  • Structural Interface 4 bolt holes for M5
    Interfaces can be customised for customer needs.
  • Fluidic Interface 1/4” tube stub or screwed AS4395 fitting
    Interfaces can be customised for customer needs.
  • Technology Readiness Level TRL9
    ESA Prisma mission 2010
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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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