A simple, robust solution for repeatable and accurate pressurized liquid sampling.
Pressurized liquid samples have specific handling requirements to produce accurate data when injected on a gas chromatograph. The liquid sample head pressure must be sufficient to prevent the sample from vaporizing, the samples must be filtered to prevent particulates from damaging valves on the instrumentation, and samples must be drawn from the bottom of the cylinder to ensure no gas is introduced into the sample stream. The LPG Pressurization Station fulfills all of these requirements in one, compact package.
Not only does Wasson-ECE manufacture turn-key laboratory and process solutions, but we are also at the forefront of sample introduction solutions in the hydrocarbon processing industry. We manufacture process sample panels, custom sample introduction systems, and small devices to streamline the sample handling process for our customers.
The LPG Pressurization Station has a built-in regulator to maintain cylinder head pressure, keeping the sample in liquid phase as it is drawn down, as well as providing a sturdy base to keep the cylinders upright while sample is drawn off the bottom. Prior to entering the analyzer, samples pass through a built-in filter to remove particulates so that delicate components downstream are protected.
Pressurized liquid samples have specific handling requirements to produce accurate data when injected on a gas chromatograph. The liquid sample head pressure must be sufficient to prevent the sample from vaporizing, the samples must be filtered to prevent particulates from damaging valves on the instrumentation, and samples must be drawn from the bottom of the cylinder to ensure no gas is introduced into the sample stream. The LPG Pressurization Station fulfills all of these requirements in one, compact package.
Not only does Wasson-ECE manufacture turn-key laboratory and process solutions, but we are also at the forefront of sample introduction solutions in the hydrocarbon processing industry. We manufacture process sample panels, custom sample introduction systems, and small devices to streamline the sample handling process for our customers.
The LPG Pressurization Station has a built-in regulator to maintain cylinder head pressure, keeping the sample in liquid phase as it is drawn down, as well as providing a sturdy base to keep the cylinders upright while sample is drawn off the bottom. Prior to entering the analyzer, samples pass through a built-in filter to remove particulates so that delicate components downstream are protected.
The LPG Pressurization Station is ideal for use in laboratories which analyze liquid-phase samples, such as refineries or bulk monomer manufacturing. Labs that analyze liquid propane, propylene, or butanes could benefit from having a device that will provide more repeatable and accurate data.
A customer providing propane storage and distribution services on the East Coast had a custom gas chromatograph equipped with a liquid sampling valve to analyze propane purity. The instrument was designed to accommodate pressurized liquid samples that would vaporize upon injection.
On warm days, they noticed their analytes were being reported at several orders of magnitude lower than normal. They determined the cause was due to the sample conditions in the cylinders they used to collect propane for analysis. Because the propane in the sample cylinders was collected at its vapor pressure, when the hand valve on the cylinder was opened to purge the GC with sample, the pressure would drop below its vapor pressure and the propane would vaporize before reaching the instrument. This would result in the GC injecting gas-phase propane instead of liquid.
With an LPG pressurization station, this customer would have been able to pressurize the sample cylinders well above the vapor pressure of propane, preventing the sample from vaporizing prior to the instrument.
- • Compatible with pressurized liquid samples
- • Secures sample cylinders for safety and repeatable sampling
- • Stand mounts to bench for added stability
- • Accommodates cylinders of various sizes
Not compliant with any standard methods, but typically used with ASTM D2712 and D2163.
- • 3-way hand valve
- • 0-500 psi (35 bar) pressure regulator
- • Back pressure restrictor valve
- • 1/4” NPT fitting for quick connect interface
- • Specially passivated sample-wetted surfaces
- • Built-in 5 um liquid sample filter to remove particulates
Recommended for use with gas chromatograph equipped with either a liquid sampling valve, or a vaporizer. Requires charge gas (typically helium or nitrogen) at >500 psig.
Wasson-ECE Instrumentation
101 Rome Ct., Fort Collins, Colorado USA 80524
Phone: +1 (970) 221-9179
Fax: +1 (970) 221-9364
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