N-BZ

Brazed Heat Exchangers pack plate-style thermal efficiency into a compact, fully sealed, gasket-free unit — the standard choice for refrigeration, heat pump, and HVAC duties where space is tight, leaks aren't an option, and the unit will run largely unattended for years.

N-BZ software handles the sizing math specific to brazed construction: fixed plate counts (since plates can't be added or removed after brazing), braze material compatibility with the process fluid, and the pressure and temperature limits that differ meaningfully from gasketed plate units. It also flags refrigerant-specific considerations — approach temperature, subcooling, and superheat margins — that a generic plate exchanger tool would miss entirely.

The edge: because brazed units can't be field-modified once built, getting the sizing right the first time matters more here than with any serviceable exchanger. Our tool is built around that constraint from the ground up, rather than adapting a plate & frame calculation and hoping the assumptions still hold.

The output includes a full performance rating alongside sizing — approach temperature, subcooling and superheat margins, and pressure drop on both circuits — so you can confirm the unit meets its duty before it's ordered, not after it's installed and underperforming.