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Quotes - Engineering - SalesConstruction and Ratings
What the plates are made of, what joins them, how much pressure the result holds, and which approvals it carries.
- Plate and Brazing Materials: A brazed plate exchanger is two materials in contact with your fluid: the plate and the filler that joins the plates.
- Pressure Classes: The final letter in a SWEP part number is its pressure class.
- Refrigerant Compatibility: Refrigerant choice sets three things about the exchanger at once: the pressure class, the braze material, and how much internal volume you can afford.
- Approvals and Certifications: Which approval matters depends entirely on where the unit is going and what is flowing through it.
The fluid list decides the build before the duty does. Copper, nickel, All-Stainless and SMO 254 exist because different fluids destroy different things.
Materials and Ratings in Practice
Material and rating questions get a firm answer once the fluids are named exactly - "water" is not enough when the choice is between copper, nickel and stainless braze. Send both fluids, the temperatures and the working pressure, and if a unit is already installed, the material code and class letter from its nameplate.
Call and talk it through with an engineer: 1-805-484-2992
Related Frames
SERIES • 18 TO 75 GPM
SWEP B16
All-Stainless construction - copper-free plates and brazing throughout.
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SERIES • 200 TO 400 GPM
SWEP B56
SMO 254 high-molybdenum plates - the chloride-resistant frame.
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SERIES • UP TO 18 GPM
SWEP B8T
Nickel-brazed - the copper-free option at small size, for ammonia and aggressive media.
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