NITROGEN SERVICING UNITS (NSU)

McNaughton Dynamics Limited has developed a new universal “Nitrogen Servicing Unit” to supply all Nitrogen requirements, both High and Low Pressure Gaseous Nitrogen.

This innovative design provides large amounts of Nitrogen gas from a liquid Nitrogen tank, for charging aircraft Nitrogen systems of all capacities. It is based on the successful Zwick range of Cryogenic Servicing Units, in service with air forces worldwide for the last forty years.

Designed to be very simple to operate, the self-pressurising “Nitrogen Servicing Unit” charges aircraft systems safely and quickly from one source of liquid.

The machine is filled with 300 Litres of Liquid Nitrogen which is stored in a 400 psi / 27 bar cryogenic tank. Some of the liquid is boiled off and used to pressurise the tank so as to provide a continuous supply of pressure. A patented internal pump provides high pressure Nitrogen instantly upon demand. After the tank and pump, the liquid is vaporised into gas by aluminium heat exchangers, warmed to ambient temperature and delivered to the control panel for distribution to the aircraft through two hoses and control valves.

McNaughton Dynamics Nitrogen Unit

Nitrogen Servicing unit

Saves space, time and cost whilst improving safety of operation.

FEATURES & BENEFITS

  • Simple to operate.

  • Charges aircraft systems quickly and safely.

  • HP and LP gas from one machine.

  • Continuous pressure, no pressure raising time delays.

  • Highly reliable unit with few moving parts.

  • Low maintenance requirements.

  • Based on robust military design.

  • Standard NATO fill connector.

  • Air transportable in operating condition.

  • Self contained, no electrical power or fuel required.

FULL SPECIFICATIONS

Gas Nitrogen 99.99% Pure
Pressure 0 – 4000 psi / 0 – 270 bar
Flow Rate 50 cfm / 1400 Litres/Min
Hoses 2 x 50ft / 15 metre
Tank Coding DOT 4–L
Tank Capacity 75 Gallons / 300 Litres
Length 124 ins / 315 cms
Width 60 ins / 152 cms
Height 54 ins / 137 cms
Weight 3100 lbs / 1400 Kg
Temperature of gas Within 7°C of ambient