Grab Sampling Assemblies

Swagelok Louisiana delivers configurable grab‑sampling solutions that are locally assembled, supported, and built for long‑term reliability. Designed to help you safely obtain representative liquid or gas samples from your process lines, these systems offer flexibility without complexity.

Choose closed‑loop sampling into pressure‑rated cylinders with the Grab Sample Module (GSM), or streamline routine analysis with cost‑conscious collection into non-pressure containing bottles using the Liquid‑Only Sampling Module (GSL). Each sampling panel is engineered to be intuitive to operate, simple to maintain, and conveniently ordered as a single part number. Built throughout with Swagelok® tube fittings, every system is designed to promote leak‑tight performance and confidence in your sampling process.

Swagelok Louisiana offers 15 standardized grab sampling assembly designs engineered for safe, reliable sample collection. Each assembly is available in a wide range of configurations—with optional advanced features—to meet diverse application needs. Our local team designs, fabricates, and tests every module to ensure it arrives fully assembled and ready for installation. For added safety and ease of use, grab sample panels include clearly printed instructions positioned directly next to the sampling cylinders.

Learn More About Grab Sample Systems

Engineered Flexibility. Built Around Your Application.

We work side by side with your team to adapt designs to your exact requirements. From component substitutions and material upgrades to tube size conversions and metric configurations, our engineers optimize each system for performance and reliability. We also analyze flow and pressure drop, refine designs accordingly, and recommend properly sized sample coolers, heaters, and enclosure heaters—validated through vendor engineering expertise.

Sample Cylinders

A sample cylinder is required for every GSM system and is ordered separately when purchasing a new GSM. Sample cylinder assemblies—referred to as Grab Sample Cylinders (GSCs)—are available in multiple configurations.

GSC options include:

Standard cylinder sizes: 150, 300, 400, 500, and 1000 cm³
Multiple cylinder and valve material options
Configurations with or without a purge bypass tube
Choice of quick connects
Optional outage tubes, rupture discs, and handles
Cylinder treatments and certifications
Stem and body protectors
Internal surface finishes, including: PTFE‑coated inner wall
SilcoNert® coating
Electropolished inner diameter
Additional customization options available

i-veeaf

Ammonia Sampler

Swagelok’s closed‑loop ammonia sampling solution is designed to elevate safety, consistency, and confidence in your sampling process. The Swagelok® ammonia sampler enables reliable liquid ammonia sampling at or near its boiling point, helping verify minimum water content while minimizing operator exposure. Installed directly at the sample point, this streamlined design eliminates the need to transport ammonia samples through the facility—reducing risk, simplifying workflows, and supporting safer, more efficient operations.

Meet Trey Hatcher, Field Engineer

Trey is experienced in grab sampling, analytical sample systems, and gas distribution, with a strong understanding of sample extraction, conditioning, transport, pressure and flow control, filtration, and analyzer requirements. Skilled in designing, troubleshooting, and optimizing complete sample and gas delivery systems to provide reliable, representative samples and consistent gas delivery for critical analytical applications.

Contact Trey today to discuss the needs of your sampling system.

<div style="text-align: center;">CONNECT WITH TREY</div>

Trey Hatcher

What To Expect When Working With Your Local Louisiana Team

We take the time to understand your application before recommending a solution. During an initial consultation, we'll discuss factors such as operating conditions, system design requirements, process media, and service accessibility. Once we have a complete picture, we'll develop a customized recommendation and provide pricing. Below is what you can expect:

Design

We take the time to understand your application before recommending a solution. During an initial consultation, we'll discuss factors such as operating conditions, system design requirements, process media, and service accessibility. Once we have a complete picture, we'll develop a customized recommendation and provide pricing. Below is what you can expect:

Fabrication

With your approval in place, production begins in our Baton Rouge shop, where trained specialists fabricate and assemble your solution. Comprehensive testing and quality checks are performed on every assembly prior to shipment, helping ensure dependable performance in the field.

Quality Inspections and Testing

Quality Inspections and Testing

You can trust that every assembly is thoroughly tested for quality and reliability. In addition to water pressure testing, we offer helium leak, hydrostatic, nitrogen pressure, and pressure decay testing to help ensure optimal performance in your application.

Delivery

We take extra steps to ensure your assemblies arrive clean, documented, and ready for use. Protective packaging helps safeguard system cleanliness, while included test certifications provide verification of quality. Whether shipped to your facility or picked up in Baton Rouge, assemblies are prepared for immediate installation, and our experts are available to assist with implementation and installation recommendations.

maxresdefault-Aug-12-2026-01-03-40-6455-PM

maxresdefault-1-4

maxresdefault-2-3

Contact Us with Your Application Requirements