Liquid nitrogen dosers, cryogenic piping and Flavordose

NITRODOSE® and EasyDose™ liquid nitrogen dosers

Vacuum Barrier injection systems deliver a dose of low-pressure liquid nitrogen into each container. Nitrogen adds rigidity to containers of still beverages and displaces oxygen from the headspace, extending product shelf life.

Which technologies do the dosers use?

• CIP protection. During CIP (Clean in Place), an automatic nozzle shields the dosing head from moisture and prevents freeze-ups. The nozzle withstands high-pressure wash-down and aggressive chemicals. Optional for EasyDose and NITRODOSE, standard on HS Aseptic.
• 3-D Technology (Directional Dose Dispersion). For containers with shallow headspace — lightweight bottles and hot fill. Eliminates splash and holds target pressure within ±1% psi, including during sharp line acceleration and deceleration.
• Servodoser®. The NITRODOSE G3 Servodoser adjusts flow during discrete and continuous dosing without a nozzle change. Accuracy — ±1% of dose weight.
• Self-monitoring. NITRODOSE G3, G3 Pro and HS Aseptic continuously monitor operation, with alarm outputs and a beacon.
• Controls. Siemens S7-1200 or Allen Bradley ML1100 PLC, 4″ or 6″ touchscreen depending on the model.

How is nitrogen supplied?

From a portable dewar, an outdoor bulk tank or an existing piping system. Application modes: pressurisation, nitrogenation, pre-purge inerting before filling and headspace inerting after filling.

How to choose a doser model · How the purchase works

SEMIFLEX® cryogenic piping and CobraFlex® hoses

Vacuum-jacketed piping delivers liquid nitrogen from the tank to the points of use. Phase separators remove vapour and supply low-pressure single-phase LN2 to each use point on demand.

What does an LN2 supply system consist of?

• SEMIFLEX® — stainless steel pipe with sealed or dynamic vacuum. Lowest heat loss during cool-down and in steady state. More about SEMIFLEX
• ES SEMIFLEX — flexible vacuum-jacketed piping for main lines, dynamic and sealed versions, with a protective layer.
• CobraFlex® — stainless steel liquid nitrogen hose with sealed vacuum and a flexible outer wrap. More about CobraFlex
• Triax — pipe that, combined with SEMIFLEX, eliminates two-phase flow to all use points.
• Phase separators — pneumatic modulating valve type (dynamic or sealed vacuum, 2 / 4 / 8 outlets) or sensor-controlled.
• NITROMATIC Dewar Fill — station for automatic filling of a dewar or tank from a pipeline or bulk tank.