Quincy QSV 2200, Instruction Manual

Page: 77 / 124

Section V - Options
Quincy Vacuum Pump-QSV Series 77
6. Chlorides (Cl-)
Chloride ions will create pitting corrosion on stainless steel. Their concentration should be limited,
depending from the RSI value.
RSI < 5.5 5.6 < RSI < 6.2 6.3 < RSI < 6.8 6.9 < RSI < 7.5 7.6 < RSI
Cl- (ppm) 200 350 500 350 200
7. For energy recovery systems, the limit is 100 ppm.
Sulphate (ppm)
Type of cooling system Standard Energy recovery
Single pass < 1000 < 200
Recirculating (with tower) < 1000 not applicable
Closed loop < 400 < 200
8. Iron and Manganese
Dissolved iron (ppm) Dissolved manganese (ppm)
Type of cooling system Standard Energy recovery Standard Energy recovery
Single pass < 1 < 0.2 < 0.2 < 0.05
Recirculating (with tower) < 1 not applicable < 0.2 not applicable
Closed loop < 1 < 0.2 < 0.2 < 0.05
The values in bold are rejection limits.
9. Copper
Copper (ppm)
Type of cooling system Standard Energy recovery
Single pass < 1 < 0.2
Recirculating (with tower) < 1 not applicable
Closed loop < 1 < 0.2
10. Ammonium
The limit of 0.5 ppm is a rejection limit. The limitation only applies for copper containing systems.
11. Suspended solids
Large particles (size > 10 μm) should not be present as they can be filtered out. Small particles
(< 0.5 μm) are not taken into account. For particles between 0.5 μm and 10 μm, the following limits apply: