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

Cold Gas 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 out let pressure for the customer.

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 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 satellite mission.

 

Performance Characteristics

  • Operating Media GN2
  • Inlet Pressure 250 bar
  • Outlet Pressure 4 bar nominal
  • Set Point Accuracy 3.9 to 4.1 bar, set at max operating inlet pressure
  • Outlet Pressure Tolerance +/- 0.4 bar over life
  • Lockup <1.5 bar above set point
  • Outlet MEOP 6 bar maximum
  • External Leakage < 1x10-6 GN2 over pressure and temperature range
  • Internal Leakage at Lockup <1x10-4scc/s GN2
  • Operating Temperature +17oC to +60oC
  • Non-Operating Temperature -20oC to +60oC