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The Highest Quality Leads (Pigtails) and Hoses Designed and Manufactured Specifically for the Gas Industry

OUR ATTENTION TO DETAIL WILL MAKE THE DIFFERENCE FOR YOU

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WELDCOA IS A
MODERN MANUFACTURING
SUPPLIER YOU CAN REPLY ON

Quality control methods and meticulous attention to detail throughout the manufacturing process ensure that our customers will receive a leak-free lead that will provide years of service. This detail and commitment to the entire process helps make Weldcoa’s lead and hose products the very best in the industry.

Whether our leads and hoses are installed with new equipment or ordered as replacement parts, be ensured that you received the highest quality product in the market.

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Oxygen Cleaning

100% of the leads and hoses manufactured by Weldcoa are cleaned for oxygen service using environmentally friendly processes.

Oxygen cleaning is performed using guidelines set forth in the Compressed Gas Association Pamphlet G-4.1 “Cleaning Equipment For Oxygen Service”

Leads being dipped into Blue Gold Wash Tank

External Degreasing

Flexible, post-sintered PTFE tube material is hot solvent degreased prior to any further handling or processing.

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100% Hydrostatically Pressure Tested

Every lead (pigtail) and hose assembly is tested to 1.5x the maximum allowable working pressure using water.

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100% Nitrogen Leak Tested

Each lead/hose assembly is tested to the maximum allowable working pressure, or 3700 psig with Nitrogen to further check for leaks.

Close-Up of Flex Lead End HERO

Post Assembly Nitrogen Leak Test

If the lead/hose assembly is to have non-permanent ends installed (such as elbows, CGA fittings, etc.) it is once again leak checked with Nitrogen to the maximum allowable working pressure, or 3500 psig.

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Effusion Test

For all flexible post-sintered ptfe lined leads. Three sample per bulk hose lost (beginning, middle and end) are tested per CGA E.9-2017 standard in order to determine and approve the effusion rate of the flexible, post-sintered PTFE tube material.

Leads in Clean Water Wash Tank

Internal Rinse

The inside of the lead / hose is rinsed with 150°F hot ionized water to remove any residue from the cleaning step.

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Drying and Packing

The lead / hose assembly is dried prior to final assembly and packaging. Vacuum drying to micron levels is available for moisture critical applications.

YOUR SAFETY IS OUR TOP PRIORITY

"We ensure that the products you depend on are of the highest quality, and will be there when you need them, time and time again."

- Hector Villarreal, President of Weldcoa

 

 

WE HAVE A WIDE RANGE OF OPTIONS AVAILABLE TO SUPPORT YOUR GAS AND CRYOGENIC NEEDS.

Product image for Flexible PTFE Lined Leads and Hoses
Flexible PTFE Lined Leads and Hoses
Weldcoa is now post-sintering PTFE inner-core tubing for flexible leads and the focus is strictly on the high pressure gas market We offer a wide range of options including single and double braid options.
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Rigid Metal Leads
For decades, Weldcoa has offered a wide variety of high quality Rigid Metal Leads. Their low cost compared to flexible leads have made them an economical choice for a number of applications.
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Flexible Metal Lined Leads and Hoses
Flexible Corrugated Metal Leads are ideal choice when low diffusion rates and higher integrity are required. We also offer Flexible Metal Cryogenic Hoses which are known for their excellent cycle life.
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Lead / Hose Selection Guide
Not sure which lead you are in need of? Well we have good news for you. Weldcoa built an in-depth lead configurator for both charging and discharging flexible leads to help you pick a safe, appropriate option.
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Product Testing and Cleaning Details
Quality control methods and meticulous attention to detail ensure that our customers will receive a leak-free lead.
Product image for Lead Maintenance Suggestions
Lead Maintenance Suggestions
Weldcoa offers some common practice maintenance suggestions for your lead and hoses. Be Safe and Proactive.
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Manifold Options
In need of a replacement gas pack manifold and leads? Weldcoa offers a wide variety to fit your specific gas application.
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Shield

QUALITY CONTROL CHECK-POINTS

Automation of our complete process has allowed more time for our staff to perform additional quality inspections at various stages throughout the process. All inspections become part of the data within our system which is immediately available and actionable.

WE ARE PROUDLY AFFILIATED WITH THE FOLLOWING ASSOCIATIONS

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USA

PROUDLY MADE IN THE USA