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 37, NO-2830 Raufoss, Norway
EMAIL info@nammo.com
TEL +47 61 15 36 00
ESA - SpaceBus Neo .
Contact

Nigel Kay

General Manager

MAIL 36 Central Way, Cheltenham Trade Park, Cheltenham, GL51 8LZ, UK
EMAIL nigel.kay@nammo.com
TEL +44 7714 322866

NAMMO CHELTENHAM

GENERAL CAPABILITIES

  • Dedicated, skilled space engineering team
  • Experienced Assembly Integration and Test team
  • Program Management

QUALITY AND INSPECTION

  • Certified to AS9100
  • Inspection department including CMM and optical measuring equipment
  • Laser part marking
  • Complete traceability of inspection records
  • Material traceability from original mill source to final components

CLEANROOM and ENVIRONMENTAL TESTING

  • ISO Class 8 environment, with Class 5 laminar flow booths
  • Large 1m diameter x 2m long Vacuum chamber
  • Thermal vacuum chambers
  • Thrust test facility
  • Vacuum/leak testing and pressure testing.
  • Air borne and liquid Particle measurement.
  • Pressure Test facility to 1500 bar
  • Computer controlled TIG and Orbital TIG weld facility
Location

Nammo UK Cheltenham Unit 36, Enterprise Way, England, GL51 8LZ, United Kingdom

Fill and Drain Valve

The Fill and Drain Valve (FDV) or Fill and Vent Valve (FVV) is capable of sealing liquid propellant or gas and can be used in most spacecraft and launcher applications.

Contact

Nigel Kay

General Manager

MAIL 36 Central Way, Cheltenham Trade Park, Cheltenham, GL51 8LZ, UK
EMAIL nigel.kay@nammo.com
TEL +44 7714 322866

NAMMO CHELTENHAM

GENERAL CAPABILITIES

  • Dedicated, skilled space engineering team
  • Experienced Assembly Integration and Test team
  • Program Management

QUALITY AND INSPECTION

  • Certified to AS9100
  • Inspection department including CMM and optical measuring equipment
  • Laser part marking
  • Complete traceability of inspection records
  • Material traceability from original mill source to final components

CLEANROOM and ENVIRONMENTAL TESTING

  • ISO Class 8 environment, with Class 5 laminar flow booths
  • Large 1m diameter x 2m long Vacuum chamber
  • Thermal vacuum chambers
  • Thrust test facility
  • Vacuum/leak testing and pressure testing.
  • Air borne and liquid Particle measurement.
  • Pressure Test facility to 1500 bar
  • Computer controlled TIG and Orbital TIG weld facility
Location

Nammo UK Cheltenham Unit 36, Enterprise Way, England, GL51 8LZ, United Kingdom

The Fill and Drain Valve 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 programs, employing monopropellant, bipropellant and electric propulsion systems.  The Flight Half Coupling consists of a Titanium 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 fueling 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.

Performance Characteristics

  • Operating Media GXe, GN2, GHe, NTO, MMH, N2H4
  • Maximum Operating Pressure 328 bar
    4,757 psi
  • Operational Temperature -35°C to +72°C
    -31°F to +162°F
  • Proof Pressure 656 bar
    9,514 psi
  • Burst Pressure 1312 bar
    19,029 psi
  • Pressure Drop <0.05 mbar
    Flowing 5.5mg/s GXe at 20°C
  • Internal Leakage <<1 x 10-4 scc/s GHe
  • External Leakage <1 x 10-6 scc/s GHe
  • Cycle Life 100 open/close operations
    For qualification
  • Robustness 100 assembly /disassembly operations
    For qualification, mounting and disassembly of GHC to FHC
  • Wetted Materials Titanium Alloy, Stainless Steel, PTFE, Silicon Nitride
  • Hardware Mass <50 gram
    For the flight half housing
  • Overall Length 78.5 mm including stub tube
    For the flight half housing
  • Fluidic Interface 1/4” or 3/8” tube stub (weldable) or threaded AS4395 fitting
  • Options Interface can be fully customised
  • Technology Readiness Level Flight Qualified, TRL9

Status

The Nammo Space Fill and Drain Valves have flight heritage on the following platforms:

  • SpaceBus 4000
  • AlphaSat
  • Vega Upper Stage AVUM