For the liquid nitrogen cooled NG-ISCC-100 and NG-ISCC-196, the best practice is to feed the chamber from a liquid-withdrawal LN2 dewar with stable, regulated delivery pressure, using cryogenic-rated fittings and an insulated transfer line so the chamber can reach and hold the lowest setpoints without flow swings or icing at the connection.

Dewar pressure is typically set to whatever level your LN2 supply system needs to deliver steady liquid to the chamber’s inlet valve over your run duration. The right setting depends on your dewar style (pressure-building capability), the distance to the chamber, and how aggressively you are pulling down to temperature versus holding a soak.

For fittings and hose types, prioritize components intended for liquid nitrogen service and repeatable connect and disconnect work in a lab or production environment:

• Cryogenic-rated metal fittings that match your dewar outlet hardware and the chamber inlet supplied with your configuration
• An insulated or vacuum-jacketed transfer line for the main run, with a short cryogenic flex section only where movement is needed
• Secure routing and strain relief to protect the inlet connection during specimen loading and daily operation

If you want to confirm the recommended inlet connection details for your exact NG-ISCC-100 or NG-ISCC-196 configuration and your dewar type, review the system on learn more and send your LN2 supply details to request a quote.