Locations
Contacts

Endre Lunde

Senior Vice President, Communications

MAIL P.O. Box 142, NO-2831 Raufoss, Norway
VISIT Enggata 37, 2830 Raufoss, Norway
EMAIL endre.lunde@nammo.com
TEL +4790853270

Norway

Nammo AS

MAIL P.O. Box 142, NO-2831 Raufoss, Norway
VISIT Enggata 37, NO-2830 Raufoss, Norway
EMAIL info@nammo.com
TEL +47 61 15 36 00

Nammo Ireland

General Capabilities

  • Dedicated skilled space engineering team
  • Fully aware of launcher engine needs
  • Design life for high stress, extreme operations
  • Design techniques for Additive Manufactured hardware
  • Industrialisation of product once development is complete

Production and Manufacturing

  • CNC machine tools
  • 5-axis machine tools
  • Electro Discharge Wire machine tools
  • Spherical Bearing Production
  • Everlube 811 bearing lubrication

Quality and Inspection

  • Certified to AS9100
  • Fully equipped metrology department
  • Including CMM and optical measuring equipment
  • Complete traceability of inspection records
  • Material traceability from original mill source to final components

Cleanroom and Environmental Testing

  • Class 8 environment, with class 5 laminar flow booths
  • Water Flow with Variable Gas Pressures
  • Thermal cycling
  • Vacuum
  • Particle counts and Cleanliness
Location

Contae Bhaile Átha Cliath, Ireland

Contact

Derek Harris

Manager, Business Development, Nammo

EMAIL derek.harris@nammo.com
TEL +353 1 866 5418

Fill & Drain Valve (FDV)

The Fill & Drain Valve (FDV) or Fill & Vent Valve (FVV) is a generic design of valve capable of sealing liquid propellant or gas across a wide pressure range.

Nammo Ireland

General Capabilities

  • Dedicated skilled space engineering team
  • Fully aware of launcher engine needs
  • Design life for high stress, extreme operations
  • Design techniques for Additive Manufactured hardware
  • Industrialisation of product once development is complete

Production and Manufacturing

  • CNC machine tools
  • 5-axis machine tools
  • Electro Discharge Wire machine tools
  • Spherical Bearing Production
  • Everlube 811 bearing lubrication

Quality and Inspection

  • Certified to AS9100
  • Fully equipped metrology department
  • Including CMM and optical measuring equipment
  • Complete traceability of inspection records
  • Material traceability from original mill source to final components

Cleanroom and Environmental Testing

  • Class 8 environment, with class 5 laminar flow booths
  • Water Flow with Variable Gas Pressures
  • Thermal cycling
  • Vacuum
  • Particle counts and Cleanliness
Location

Contae Bhaile Átha Cliath, Ireland

Contact

Derek Harris

Manager, Business Development, Nammo

EMAIL derek.harris@nammo.com
TEL +353 1 866 5418

The FDV was developed as a generic valve capable of sealing all propellant media and has been selected for use on a number of major international satellite programmes, employing monopropellant, bipropellant and electric propulsion systems. The FDV flight unit consists of a Ti alloy housing incorporating a stainless screw mechanism providing the primary seal. This seal is formed by a silicon nitride ball making point contact with the screw mechanism minimising friction and ensuring only axial movement is transmitted. The ball mates with a conical land in the housing that forms the seal. Redundant seals are located within the titanium alloy cap.

The FDV is operated using a dedicated Ground Half Coupling (GHC) which is screwed on to the flight half providing series seals to prevent external leakage. The internal screw mechanism is opened by applying a counter clockwise rotation to the actuating shaft of the GHC until the primary seal is fully open as indicated by the position indicator. After fuelling or venting is complete the valve is closed by applying a clockwise rotation. The GHC may then be removed and the cap re-fitted and torqued closed.

  • Operating Media Xenon, GN2, GHe, NTO,MMH, N2H4
  • Maximum Operating Pressure 328bar
  • Operational Temperature -35 to +72⁰C
  • Proof Pressure 656Bar
  • Burst Pressure 1312Bar
  • Flow Rate / Pressure Drop <0.05mbar@ 5.5mg/s Xe at 20oC
  • Internal Leakage <<1 x 10-4 scc/s GHe
  • External Leakage <1 x 10-6 scc/s GHe
  • Cycle Life 100 open/close ( qualified) 100 FH//GHC mate /demate (qualified)
  • Wetted Materials Ti Alloy, Stainless steel, PTFE, Silicon Nitride
  • Hardware Mass <50 gram
  • Envelope ( Overall length) 78.5mm including stub tube
  • Options Interface can be fully customised
  • Fluidic Interface 1/4” or 3/8” tube stub (weldable) or threaded AS4395 fitting
  • Technology Readiness Level Flight Qualified