WE DEVELOP, MANUFACTURE AND PROVIDE SOLUTIONS FOR A REPRESENTATIVE SAMPLE.
SERVICE

Our certified and trained Service Technicians are available for installation and maintenance of Welker products worldwide. We can provide you peace of mind on a system start-up and commissioning in any application. Send equipment to us for repairs, or we can send a technician to you to do the job on-site. We'll get you up and running at your convenience.

PLUS WELKER

Plus Welker is a collaboration between the customer and Welker to provide custom solutions for unique projects. No one knows the specific needs of your application better than you. Your knowledge plus our craftsmanship make the perfect fit in any puzzle.

SAMPLE INTELLIGENCE

We want to achieve getting the most representative sample in the most efficient way. From conditioning processes to sampling directly, we will simplify the application without sacrificing the quality of the solution. Our expertise and array of products make us the central hub for all of your sampling needs.

WORLDWIDE

Welker's global presence is headquartered in Sugar Land, TX with over 35 representatives across the world. Our brand reaches many territories providing you accessibility and tailored regional support.

PATENTS

With over 75 patents and counting, we emphasize the development of new technology. New processes and methods are always being developed in any industry. We're committed to staying ahead of the curve through innovation and forward thinking.

CERTIFICATIONS

Our products and business exceed many industry standards all over the world. As a global company, we understand that various requirements need to be met in order to operate. The quality of our products and practices are well-recognized in the industry.

SCHS

OVERVIEW

Safeguard your gas analyzer from liquids that flow through gas pipelines. The SCHS sample conditioning system properly conditions a flowing gas stream and protects analyzers from free liquids. A trio of patented liquid defense products are integrated into this explosion-proof modular system. The whole system is then packed into a removable, insulated enclosure to simplify installation and maintenance. Free liquids are stopped in their tracks before they can damage sensitive equipment. In addition, the sample stream flowing to the analyzer is maintained above the hydrocarbon dew point. Enjoy a well-conditioned gas stream that delivers a consistently correct analysis.

FEATURES

Reduces free liquids
The built-in LE2-SSKO liquid eliminator sheds free liquids back to the pipeline before they can reach the online analyzer. Next the flowing gas is warmed up by the heated regulator. As a final failsafe, the included ALS1 is ready to shut off flow in the presence of liquids. Enjoy the benefits of delivering a clean, dry sample to the analyzer.

Integrated filtration
The filter screen inside the LE2-SSKO provides, on average, two micron filtration of product flowing through the system. Contaminants flowing with the gas are stopped and drained back into the pipeline.

Modular design
Maintenance is simple to perform on the SCHS. Use the isolation valves to shut off gas flow to the unit without interrupting pipeline flow. Plus the enclosure can be removed by pulling a single pin to allow access to the entire unit.

Counter the JT Effect
The combination of liquid prevention products and the heated regulator mitigate the Joule-Thomson Effect. Maintaining the gas sample stream above the hydrocarbon dew point protects sample integrity and provides a more accurate analysis of the gas in your pipeline.

SPECS
  •   316/316L Stainless Steel construction material
  •   Teflon® seat
  •   Viton® seals
  •   3/4" MNPT pipeline connection
  •   1/8" male tube outlet connection
  •   0-50 psig spring range
  •   50 psig non-adjustable relief valve
  •   2160 psig MAOP at -20°F to 100°F
  •   Complies with API 14.1 and GPA 2166

CP-2 (Calibration)

OVERVIEW

For over 30 years, the Welker name has been synonymous throughout the world as the premier manufacturer of transportable high-pressure fluid cylinders. The CP-2 piston style constant pressure cylinder is capable of transporting a calibration standard while maintaining it in the original product condition. Welker’s proprietary manufacturing process gives the CP-2 the tolerances necessary to operate under and maintain pressure in the toughest environments. Simply by filling the pre-charge side of the cylinder before adding the calibration standard, the pressure is equalized while product flows into the container; thus reducing the chances of phase change and calibration standard degradation. The CP-2 comes standard with a built-in gravity-style mixer to agitate the gas or liquid product for an even mix inside the cylinder prior to instrument calibration. Complete with DOT and Transport Canada approvals, the Welker CP-2 contains all the features necessary to accurately calibrate analyzers and other instruments.

FEATURES

Consistent calibration
The Welker CP-2 cylinder maintains calibration standards that need to be transported to different locations. Proper storage and transport delivers accurate, repeatable analyzer calibration values.

Polished for performance
The tight tolerances created by our polishing process prevent leakage across the internal piston. In addition, it makes the piston more effective at cleaning sediment off the sides of the cylinder. Make every calibration accurate with a CP-2.

Accuracy is in the mix
Effectively mix your calibration standard prior to any analysis with our gravity mixer or syringe-style mixing rod. Enjoy the accuracy gained by calibrating analyzers with a consistent product from the same cylinder.

Reduce phase change
The constant pressure pre-charge helps reduce phase change while filling or transporting the cylinder. Maintaining the product in the same phase conditions results in accurate analyzer calibration.

Choosing the right material
The material used to construct our cylinders can go beyond stainless steel. Custom materials are available including titanium, Hastelloy®, Inconel and aluminum to name a few. The right material for the right application makes for a better cylinder.

Tough seals for corrosive products
Sometimes you need more than standard seals to use corrosive calibration standards. Add Kalrez® seals to further increase the lifespan of calibration cylinders in the field. Here’s to a clean, safe day on the job.

SPECS
  •   316/316L Stainless Steel construction
  •   Viton® seals
  •   150 cc - 1000 cc cylinder sizes
  •   1/4" MNPT pressure gauges
  •   Gravity or vortex mixer options available
  •   1800 psig MAOP at -20°F to 100°F
  •   DOT, Transport Canada approvals

CP-2 (Sampling)

OVERVIEW

For over 30 years, the Welker name has been synonymous throughout the world as the premier manufacturer of transportable high-pressure fluid sample cylinders. The industry-recognized CP-2 piston style constant pressure cylinder is capable of transporting a liquid or gas sample from the field to the lab while maintaining the sample close to pipeline flowing condition. Welker’s proprietary manufacturing process gives the CP-2 the tolerances necessary to operate under and maintain pressure in the toughest environments. Simply by filling the pre-charge side of the cylinder before sampling, the sample pressure is equalized while product flows from the pipeline to the container; thus reducing the chances of phase change and sample degradation. The CP-2 comes standard with a built-in gravity-style mixer to agitate the sample for an even mix inside the cylinder prior to lab analysis. Complete with DOT and Transport Canada approvals, the Welker CP-2 contains all the features necessary to bring the pipeline to the lab.

FEATURES

Take the pipeline to the lab
The Welker CP-2 cylinder transports representative samples that deliver accurate results at the lab. Finding the right price for a product is simple when it is preserved in pipeline conditions.

Polished for performance
The tight tolerances created by our polishing process prevent leakage across the internal piston. In addition, it makes the piston more effective at cleaning sediment off the sides of the cylinder. Take a clean, smooth sample every time you fill up a CP-2.

Reduce phase change
The constant pressure pre-charge helps prevent sample phase change while filling or transporting the cylinder. Maintaining the original product conditions results in a more representative sample.

Accuracy is in the mix
Effectively mix your samples prior to any analysis with our gravity mixer or syringe-style mixing rod. Enjoy the accuracy gained by delivering a representative sample to your analyzer.

Choosing the right material
The material used to construct our cylinders can go beyond stainless steel. Custom materials are available including titanium, Hastelloy®, Inconel and aluminum to name a few. The right material for the right application makes for a better sample cylinder.

Accuracy is in the mix
Someone’s got to do the dirty work, and you’ll need the right setup to do it. Sulfinert and Chembar passivation coatings are available for applications exposed to dangerous levels of H2S. Add Kalrez® seals to further increase the lifespan of sour gas cylinders in the field. Here’s to a clean, safe day on the job.

SPECS
  •   316/316L Stainless Steel construction
  •   Viton® seals
  •   150 cc - 1000 cc cylinder sizes
  •   1/4" MNPT pressure gauges
  •   Gravity or vortex mixer options available
  •   1800 psig MAOP at -20°F to 100°F
  •   DOT, Transport Canada approvals

GSS-4PM Wet Gas Sampler

OVERVIEW

Time-tested, rugged, and proven sampling performance. The GSS-4PM is our flagship wet gas sampler that extracts a fresh, representative composite sample from the process line and forces it completely into a sample container. If you need to prevent liquids from reaching your sample container, we have the solution. The wet gas model includes patented liquid eliminating technology to shed free liquids before they can flow into the sample container. Rest easy knowing your sample will contain fewer free liquids when it arrives at the lab for analysis. Besides delivering clean and dry gas, the GSS-4PM delivers the renowned representative sample quality expected of Welker® products. Our patented collection head achieves 100% displacement of the sample collection chamber with every actuation. The result is a highly accurate composite sample that will be right on the money.

FEATURES

Eliminates free liquids in samples
The built-in LE2-SSKO liquid eliminator sheds free liquids back to the pipeline before they can reach the sample container. Enjoy the benefits of delivering a clean, dry sample to the analyzer at the lab.

Maintains sample integrity
The GSS-4PM takes samples at full pipeline pressure to preserve the process conditions while the gas is transferred into a container. The unique sampler design minimizes the distance between the source and collection chamber, which reduces the chance of altering the sample quality. In addition, the sample path is clear of filters and regulators so that the product remains unchanged as it is moved through the sampler.

Purges active sample
The patented Vanishing Chamber™ collection head delivers a fresh sample bite into your cylinder every time. With every actuation, the collection head is compressed and completely purges the Vanishing Chamber™ of any active sample. The result is a truly representative composite sample analysis at the lab.

Externally adjustable relief
The inline relief is accessible on the outside of the sampler for easy adjustments in the field. Get the right relief setting for the right sample.

SPECS
  •   316/316L Stainless Steel construction
  •   3/4" MNPT pipeline connection
  •   1/4" FNPT outlet connection
  •   Viton® Vanishing Chamber™ collection head
  •   Diaphragm operated
  •   Viton® seals
  •   Inline Relief
  •   65/100 psig min/max instrument air supply required
  •   Integrated bypass manifold with built-in valve
  •   2160 psig MAOP at -20°F to 120°F