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by Alecia Robinson on Thu, Mar 23, 2017 @ 09:03 AM
When pressure isn't an issue, bottles simplify sample collection and transport
A liquid-only sampling system (GSL) can be used in a number of liquid applications where the process fluid is not at risk of fractionating or evaporating when stored at atmospheric pressure. If you'd like to find more about all of grab sampling offering download this free Grab Sampling PDF.
While cylinders provide a great way to transport samples for lab analysis, they aren't always necessary. Swagelok’s Grab Sample Liquid sampling system offers an alternative closed-loop system for use with low vapor-pressure liquids. If you have a non-hazardous environment, this system is easy to manage.
System media can be drawn and transported without the risk of spillage or evaporation, thanks to the bottle with its self-sealing septum cap. The bottles are a lower-cost collection option that can be replaced easily when needed. Bottles can even be disposable if circumstances require.
Fixed-volume samplers are an option that can improve safety. This option completely separates the process pressure from the sample bottle and, by extension, the user. They prevent over-filling and overpressure conditions.
Low-emission sampler
All Swagelok GSL systems use Sentry Equipment’s Model MVS low-emission sampler to draw liquid or slurry into the bottle. The MVS features an easily replaceable dual-needle system and a spring-return handle to prevent unintentional dispensing. This non-coring needle punctures the septum without coring it, allowing for full resealing of the septum when the sample bottle is removed. The tapered bottle shroud enables proper septum and needle alignment, preventing accidental spillage or needle breakage.
Dead volume is minimized thanks to a close-coupled ball valve.
No excuses
When visiting plants, our representatives have seen some odd makeshift methods of collecting samples, even the use of tire bladders filled right from the pipeline. Remember, for your lab analysis to have any value, you need a representative sample of the fluid in your system. There's no excuse for cutting corners.
No matter what kind of sampling system you need, Edmonton Valve & Fitting can help you. Contact us through our website or by calling 780-437-0640, and one of our representatives can help you select the right components and configuration.
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