Vaisala K-PATENTS® Process Refractometers for Metal Machining and Mining Industries

Vaisala provides process refractometers for accurate in-line concentration and Brix measurements of water based hydraulic fluids. These are e.g. quenchants, cooling lubricants, cutting oils and coating fluids in the metal machining operations and hydraulic emulsions (longwall emulsions) in the longwall coal mining. Alumina mining and refining operations can also be improved by monitoring the concentration of caustic soda that is used to dissolve alumina. The purpose is to keep the concentration of hydraulic fluids or caustic constant while minimizing the use of fresh fluid or chemical. Fluid can be lost in the hydraulic circuit at extremely large rates. Unlike periodical sampling, continuous monitoring provides instant feedback as to changes in the fluid and to precise dosing and mixing of the fresh fluid.

PR-23-AC Vaisala K-PATENTS® Sanitary Compact Refractometer PR-23-AC
For hygienic installations in small pipe line sizes of 2.5 inch and smaller. Installation through a 3A Sanitary clamp.
PR-23-AP Vaisala K-PATENTS® Sanitary Probe Refractometer PR-23-AP
For hygienic installations in large pipes, tanks, cookers, crystallizers and kettles and for higher temperatures up to 150°C (300 °F). Installation through a 3A Sanitary clamp.



Vaisala K-PATENTS® Process Refractometer PR-23-GP
An all-purpose refractometer for large pipe and vessel installations. Installation through a flange or clamp connection. Area classification Zone 2 (Class I, Div. 2); area classification for Intrinsically safe PR-23-GP-IA Zone 0, Zone 1.

Vaisala K-PATENTS® Compact Process Refractometer PR-23-GC
A general industry compact refractometer for the small pipeline and bypass line applications. Installed in the process either directly in a pipe elbow by a Sandvik coupling connection or in a straight pipe via a Wafer flow cell or a Pipe flow cell. Economical option when higher alloys and special wetted parts materials are required. Intrinsically safe and hazardous area certification is provided for hazardous areas.


To find out how You can benefit from using a K-Patents digital process refractometer, please contact us or send us a Quotation request.