Swagleok Denver

Grab Sampling Panels

Grab Sampling Panels

We offer fully configurable, locally built and supported, and reliable grab sampling assemblies in a variety of configurations with advanced features intended to help you safely capture representative samples of liquid or gas from your process lines. Whether you want closed-loop sampling into pressure-rated sample cylinders or simply want to collect process fluid into lower-cost glass laboratory bottles for analysis, we offer ideal sampling panel options that are safe, intuitive, easy to maintain and can be ordered as a single part number.

Grab Sample Module

The Swagelok® grab sample module (GSM) is a closed-looped sampling system that pulls from a positive-pressure process and returns back to the process at a lower pressure location (e.g., upstream of a pump) by using differential pressure to drive the fluid through the system. Samples are deposited into durable, pressure-rated metal grab sampling cylinders (GSC) that prevent the sample from escaping, protecting operators.

Features of the GSM

• GSM panels feature a switching valve configuration with two or three Swagelok® 40G series ball valves, allowing for simultaneous control of fluid routing. These configurations reduce the number of steps required and give a clear indication of sequencing, reducing the likelihood of errors.
• A GSC is docked and process fluid is continuously circulated within to maintain process conditions. A GSC—available in various configurations—is required for every GSM system and should be ordered separately when purchasing a new GSM.
• The circuit draws a flow path that connects to the sampler then returns to the process or flare. The GSM can be left in the bypass or sample position indefinitely, keeping transport lines fresh and ready for sample capture.
• A rupture disc is an available option for every GSM system, and a relief valve can also be added to sampling systems where there is added overpressure concern. Each sampling system is built with Swagelok® tube fittings to reduce potential for leaks.

Grab Sample Liquid Systems

The Swagelok® grab sample liquid (GSL) is a liquid-only sampling system for drawing fluid into a non-pressure-containing bottle with a self-sealing septum cap in applications where the process fluid is not at risk of fractionating when stored at atmospheric pressure.

Features of the GSL

• Fixed-volume Swagelok GSL systems use the same switching valve as a GSM system to provide simplified operation for complex tasks. Like the GSM, GSL systems are assembled with Swagelok tube fittings to avoid the potential leak points of NPT fittings.
• The GSL can use lower-cost glass or polyethylene laboratory bottles to draw and store samples. Using bottles provides immediate feedback on the visual quality of the sample stream.
• Samples can be drawn and transported without the risk of spillage or evaporation. A spring-return handle on the sample drawing mechanism prevents unintentional dispensing.