Low-flow Gas Control Valve Increases GC Repeatability
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The new FAS 16mm FASPROP low-flow proportional valve from Norgren enables OEMs to give gas chromatography users the highest analysis repeatability and the lowest detection limits they demand. With the smallest orifice– just 0.002 in. (0.05mm)– combined with the most compact design in the industry, FASPROP precisely controls low flow rates in the mL range up to 174 psi/12 bar, enabling the use of most common carriers. FASPROP’s accurate, low flow prevents peak retention time shift in packed and capillary GC columns caused by poor flow control. FASPROP can also be used to regulate flow and pressure supply to detectors improving stability and sensitivity. A very low diffusion leak rate of permanent gases coupled with ultra clean hardware components guarantees a stable and true low baseline for optimum Minimum Detectable Quantity. Available in cartridge or flange mounting configurations, FASPROP fits into a small footprint and is easy to integrate and install. It also features the same flat plunger and flat spring as the well-established FAS FLATPROP valves, widely used in medical devices for dosing gases. These typically exceed 100 million cycles showing a life time, up to ten times longer than competing valves.
Norgren, + 41 22 775 10 00, www.fas.ch.
