What is a Brazed Plate Heat Exchanger?

MIT Brazed Plate Heat Exchangers (BPE) are used in both cooling and heating applications. BPE’s can be used as evaporators or condensers in certain applications like refrigerant cycles.

Capacity and connections can be adjusted as desired for specific applications. MIT Brazed Plate Heat Exchangers have a compact design for confined space requirements.

The Flow Arrangement of a Brazed Plate Heat Exchanger

MIT Brazed Plate Heat Exchangers can be designed with plates having different heat transfer characteristics.

Applications

Brazed Plate heat exchangers are high performance components and provide a high level of efficiency combined with compact dimensions and low weight.

Operating Details

Medium:

• Water glycol (coolants)
• HFC operating fluids
• Water
• Oil

Contamination:

• The quantity of particles in suspension should be less than 10 mg/l.
• Particle size < 0.6 mm. (spherical).
• Thread-like particles cause a rapid rise in pressure drops.

Temperature Range:

50°F to 437°F (10° to 225°C)(freezing point and boiling point must be taken into consideration!)

Pressure:

• max. 49 psi (3 bar) (static) up to 257°F (125°C)
• max. 435 psi (30 bar) (static) up to 437°F (225°C)
• test pressure: 650 psi

Corrosion:

The following limits refer to a pH value of 7

• free chlorine, CL2 < 0.5 ppm
• chloride ions CL < 700 ppm at 20°C, < 200 ppm at 50°C

 Other limits:

• ph 7 – 10
• Sulphate SO4 2-< 100 ppm
• [H CO3 -] / [SO4 2-] > 1
• ammonia, NH3 < 10 ppm
• free CO < 10 ppm

The following ions are not corrosive under normal conditions:

phosphate, nitrate, nitrite, iron, manganese, sodium and potassium