Construction
Brazed plate exchangers fuse stainless plates with copper or nickel under vacuum, with no gaskets and no frame bolts. Gasketed plate exchangers clamp plates between a fixed and moving frame using elastomer gaskets, allowing plates to be added or removed.
Comparison
| Factor | Brazed | Gasketed |
|---|---|---|
| Max temperature or pressure | Higher | Moderate |
| Maintenance | Sealed, service-free | Plates can be cleaned or swapped |
| Fouling duty | Limited access | Easy to inspect |
| Footprint | Very compact | Larger with frame |
| Best use | Closed loops, refrigeration | Changing or dirty duties |
Which to Specify
Choose brazed for closed-loop hydronic duties, refrigeration and compact skids where leakage is unacceptable. Choose gasketed when fluids may foul, must be swapped, or when duties change seasonally. 26YC supplies both formats for heat-recovery loops.
Selection also hinges on the fluid and duty. Brazed units suit clean, stable services such as hydronic heating loops, chilled-water circuits, and refrigeration suction or liquid lines, where the sealed construction resists leakage and tolerates high pressure in a small footprint. Gasketed units earn their place where the stream can foul, must be sanitized, or changes seasonally, because the pack can be opened, cleaned, and re-tightened, or plates added as duty grows. Material choice follows the fluid: stainless for potable and general duty, titanium or special alloys for aggressive or seawater services, with gasket elastomer matched to temperature and chemical exposure. For heat-recovery loops that see both clean and dirty streams, a gasketed exchanger on the dirty side and a brazed unit on the clean side is a pragmatic combination that 26YC supports across its catalog.
Frequently Asked Questions
When should I choose a brazed plate heat exchanger?
Choose brazed construction for closed-loop hydronic, chilled-water, and refrigeration duties where leakage is unacceptable and a compact sealed unit is preferred.
When is a gasketed plate exchanger the better choice?
Choose gasketed when fluids may foul, must be sanitized, or change seasonally, because the pack opens for cleaning, inspection, or adding plates.
Can plate counts be changed after installation?
Only gasketed exchangers allow plates to be added or removed to change capacity; brazed units are fixed and must be replaced to change duty.
Which materials are used in plate heat exchangers?
Stainless steel is standard for general duty, titanium or special alloys serve aggressive or seawater services, and elastomer gaskets are matched to temperature and chemistry.