Features
Plates and connections are manufactured from stainless steel to AISI 316, 1.4401, vacuum–brazed with copper. The special moulding of the plates produces the turbulent flow necessary for effective heat transfer and provides the plate heat exchanger with a high level of mechanical strength.
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° 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 (30bar) (static) up to 437° (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: phophate, nitrate, nitrite, iron, manganese, sodium and potassium
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