Properties
Application
The PSG Reduction Valve is used for continuous extractive gas analysis. It serves for reduction of pressure in the sample gas outlet of gas sampling probes series PSG Plus Probe while back purging. Typical applications are all processes with high dust concentrations where gas sampling for process monitoring or process optimization occurs.
Technology
The PSG Reduction Valve is based on a stainless steel fitting for tube connection with .“-RT male thread, suitable for the sample gas outlet of the gas sampling probe series PSG Plus Probe. In the fitting a spring-loaded corrosion resistant stainless steel shut off body is integrated. The used spring is also made of corrosion resistant stainless steel.
Functions
In case of back purging of the PSG Plus Probe, the PSG Reduction Valve reduces the fed pressure impulse in the sample gas outlet. This way a damage of downstream devices like sample gas cooler, filter, flow meter and especially analyzer is prevented. The valve is designed so that no complete shut off is happening to enable a pressure relief in the gas sampling probe at any time and to remove possibly depositing particles during back purge process. Additionally, the heated sample gas line is connected without cold spots via temperature resistant PSG Reduction Valve. The PSG Reduction Valve is not suited to be used in combination with PSG Pre-Filter.
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