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Sample Coolers
The sample coolers form the heart of the sampling system. These should preferably be coil-in-shell type design and should make use of counter flow type heat exchange principle.
Pressure Regulator
An important aspect of sample conditioning lies in making suitable provision to ensure that the analysers can never be subjected to a pressure higher than the safe limit. With source pressures as high as 250 bar, this warrants serious consideration and the use of components of high integrity.
Back Pressure Regulator
A pressure regulator that can maintain the down stream pressure at constant set limit irrespective of up stream fluctuations becomes an ideal choice. On closing fully, the regulator should ensure zero flow condition and should withstand the total upstream pressure
Sample Filter
Like the pressure regulator regulates downstream pressure at constant irrespective of upstream fluctuations, the back pressure regulator works exactly in reverse fashion by maintaining upstream pressure constant. This feature is very useful in maintaining the flow characteristics of sample flowing to the analysers.
Cation Column
Cation Conductivity Measurement :The majority of on-line analysers are for dissolved solids or volatile species. The presence of unwanted particulate matter can be damaging to both the instrumentation and certain components in the sampling system, such as pressure-reducing valves, capillaries or solenoid valves.
Chiller
One of the conditions in system design is – the sample should be conditioned to the temperatures as required by the analysers.