Weldcoa proudly designs, manufacturers, assembles, cleans and test a wide variety of manifolds and leads (pigtails) in-house. Many gas distributors count on us to provide reliable product to replace their aging equipment and have made Weldcoa their preferred vendor due to the unwavering quality of our equipment.
"Whether our leads are installed on a new manifold or ordered as replacement parts, be ensured that you received the highest quality product in the market." Hector Villarreal, President of Weldcoa
Typically a lead is the last item to be specified in a system. In doing so the lead usually is not placed on a maintenance program and subjected to over use.
Flexible Leads used on Gas Packs should be replaced every 10,000 Fill Cycles or every 10 years, whichever occurs first.
Please Note: Gas Pack Leads (Double Braided/Post Sintered/3600 PSI MAWP) should be visually inspected before each fill to detect any kinks, frays in the weave or discoloration of the leads. (Gas Packs used in acidic or reactive atmospheres may suffer discoloration.) If any leads are found to have kinks, frays or discoloration the lead needs to be replaced immediately. (Isolate the pack until the damaged lead has been replaced.) In addition, the leads should be leak checked during every fill cycle.
Flexible Leads used in a Cylinder Fill Facility should be replaced every 10,000 Fill Cycles or every 5 years, whichever occurs first.
Please Note: Fill System Leads (Double Braided/Post Sintered/3600 PSI MAWP) should be visually inspected every morning prior to the first fill of the day to detect any kinks, frays in the stainless-steel weave or discoloration of the leads. If any leads are found to have kinks, frays or discoloration the lead needs to be replaced immediately. (You should never use a damaged lead during the fill process.) In addition, the leads should be leak checked during every fill cycle.
Weldcoa offers some common practice maintenance suggestions for your lead and hoses. Be Safe and Proactive. Click Here for Details
15” Lead for a 6 or 12 Cylinder Manifold, MAWP 3,600 PSI, 1/4” Post-Sintered Teflon Inner-core, Double Braided Stainless Steel, Brass 1/4” MNPT, Brass 1/4” FNPT
Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene. The best known brand name of the PTFE-based formula is Teflon® by Chemours. Chemours is a spin-off of DuPont Co., which discovered the compound in 1938.
The post-sintered process re-bakes the PTFE at a controlled time and temperature, increasing the wall thickness and tightening the molecular bond, which dramatically reduces effusion rate. By making these voids as small as possible it closes the path a gas will follow while under pressure making the PTFE more "dense".
Post-Sintered PTFE provides the lowest effusion rate possible while maintaining the highest flexibility and most robust inner core.
In the gas industry: the higher the effusion rate, the higher the product ($$$$) loss for flexible lead (hose/pigtail) material...Post-Sintered PTFE is your best option.
Weldcoa is now post-sintering PTFE inner core tubing for flexible leads and the focus is strictly on the high pressure gas market. Made to Weldcoa’s strict quality specifications. We took control over and made safety top priority.
6 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 540, with Standard Valve
6 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 580, with Standard Valve
6 Cylinder Brass Header, Rigid Stainless Steel Leads, CGA 580, with Standard Valve
6 Cylinder Brass Header, Rigid Stainless Steel Leads, CGA 350, with Standard Valve
6 Cylinder Brass Header, Rigid Monel Leads, CGA 540, with Standard Valve
6 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 540, with Standard Pressure Valve
6 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 580, with Standard Pressure Valve
6 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 580, with Residual Pressure Valve
6 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 580, Standard Pressure Valve
6 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 580, Residual Pressure Valve
6 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 350, Standard Pressure Valve
6 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 540, Standard Pressure Valve
6 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 580, Standard Pressure Valve
6 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 580, Residual Pressure Valve
12 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 540, with Standard Valve
12 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 580, with Standard Valve
12 Cylinder Brass Header, Rigid Stainless Steel Leads, CGA 580, with Standard Valve
12 Cylinder Brass Header, Rigid Stainless Steel Leads, CGA 350, with Standard Valve
12 Cylinder Brass Header, Rigid Monel Leads, CGA 540, with Standard Valve
12 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 540, with Standard Pressure Valve
12 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 580, with Standard Pressure Valve
12 Cylinder Brass Header, Flexible Single Braid Non-Post-Sintered Teflon Lined Leads MAWP 3,000 PSI, CGA 580, with Residual Pressure Valve
12 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 580, Standard Pressure Valve
12 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 580, Residual Pressure Valve
12 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, MAWP 3,000 PSI, CGA 350, Standard Pressure Valve
12 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 540, Standard Pressure Valve
12 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 580, Standard Pressure Valve
12 Cylinder Stainless Steel Header, Flexible Double Braided Post-Sintered Teflon Lined LeadsMAWP 3,600 PSI, CGA 580, Residual Pressure Valve
Wolf Pack Manifold, 12 Cylinder Brass Header, Rigid Copper Leads MAWP 3,500 PSI, CGA 580, with Residual Pressure Valve.
16 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 540, with Standard Valve
16 Cylinder Brass Header, Flexible Double Braided Post-Sintered Teflon Lined Leads MAWP 3,600 PSI, CGA 580, with Standard Valve
16 Cylinder Brass Header, Rigid Stainless Steel Leads, CGA 350, with Standard Valve
16 Cylinder Stainless Steel Header, Rigid Stainless Steel Leads, CGA 680, with Standard Valve
For any questions on what is offered or if you have a specialty application, please feel free to contact us at (630) 806-2000 or email us at sales@weldcoa.com. 
