The DVLS Pressure Station allows a representative sample injection of a liquid or gaseous hydrocarbon stream. The pressure station injects the sample into a GC system and keeps the pressure at a constant level. The Pressure Station is included in the DVLS Liquefied Gas Injector.
For a representative analysis, the sample must remain in the liquid phase during the injection process, this is especially required for LPG or other chemicals that are gaseous at ambient pressures. The DVLS Pressure Station keeps the sample under pressure by using high pressure Nitrogen, which controls the outlet pressure and flow.
The sample container is installed on the front side of the pressure station using quick connectors. The station keeps the pressure at a constant level. The waste of the sample will be vented to the outlet of the pressure station, which directs the vapor outside the building to ensure the lab safety.
The use of high pressure Nitrogen enables the Pressure Station to control the outlet pressure & flow. This technology has been proven in several applications that require a representative sample injection, such as:
The design of the DVLS Pressure Station offers you a high flexibility. Select from the following configuration options to fully meet your requirements:
DVLS Liquefied Gas Injector is a GC solution that has been standardized as ASTM D7756 and EN 16423 for the analysis of residues in liquefied petroleum gases by gas chromatography. Adapting the hardware setup allows to extend the LPG analysis to a wider application range